Michael A. Strauss

Princeton University

H-index: 207

North America-United States

About Michael A. Strauss

Michael A. Strauss, With an exceptional h-index of 207 and a recent h-index of 111 (since 2020), a distinguished researcher at Princeton University,

His recent articles reflect a diverse array of research interests and contributions to the field:

Gemini Near Infrared Spectrograph--Distant Quasar Survey: Rest-Frame Ultraviolet-Optical Spectral Properties of Broad Absorption Line Quasars

Euclid preparation. The Near-IR Background Dipole Experiment with Euclid

2019 VZ50

Measurement of the Centrality Dependence of the Dijet Yield in p+ Pb Collisions at sNN= 8.16 TeV with the ATLAS Detector

A precise measurement of the Z-boson double-differential transverse momentum and rapidity distributions in the full phase space of the decay leptons with the ATLAS …

Observation of WZγ Production in pp Collisions at s= 13 TeV with the ATLAS Detector

A quasar-galaxy merger at : black hole mass and quasar properties from the NIRSpec spectrum

2017 BG231

Michael A. Strauss Information

University	Princeton University
Position	Professor of Astrophysical Sciences
Citations(all)	216829
Citations(since 2020)	67692
Cited By	158593
hIndex(all)	207
hIndex(since 2020)	111
i10Index(all)	926
i10Index(since 2020)	628
Email	Access Email
University Profile Page	Princeton University

Authors

VM Abazov,DA Stoyanova,J Warchol,J Zennamo,SW Youn,A Sánchez-Hernández,R McCarthy,T Yasuda,MP Sanders,F Couderc,D Lincoln,R Bernhard,U Bassler,S Kermiche,H Fox,F Fiedler,A Askew,A Kharchilava,T Hebbeker,JM Hauptman,E Johnson,JP Negret,SJ de Jong,R Demina,A Jayasinghe,L Suter,W Ye,MHLS Wang,JD Hobbs,AA Shchukin,J Franc,S Yang,S Uzunyan,J Joshi,A Jonckheere,JA García-González,JM Kohli,J Ellison,R Madar,JF Bartlett,L Sonnenschein,U Heintz,F Badaud,J Kraus,V Bazterra,D Price,C Hensel,Y Xie,N Prokopenko,S Snyder,R Lopes de Sa,MS Jeong,M Schott,R Kehoe,E Shabalina,I Bertram,A Khanov,K Soustruznik,E Barberis,YN Kharzheev,R Lipton,XB Bu,Y Peters,Y-T Tsai,S Atkins,A Bean,CP Buszello,Y Scheglov,M Cooke,A Das,M Zielinski,A Kumar,Z Ye,S Uvarov,PC Bhat,MRJ Williams,R Van Kooten,LV Dudko,Y Liu,VD Elvira,M Diesburg,J Hays,G Blazey,L Welty-Rieger,CE Gerber,S Chakrabarti,B Abbott,G Sajot,I Razumov,S Dutt,R Magaña-Villalba,V Parihar,M Jaffré,L Feng,X Lei,T Kurča,F Rizatdinova,C Royon,R Ruchti,J Weichert,D Denisov,VL Malyshev,T Head,W Geng,T Nunnemann,N Varelas,EW Varnes,M-A Pleier,D Claes,H Evans,J Snow,J Mansour,G Golovanov,M Johnson,Y Ilchenko,A Brandt,D Cutts,A Duperrin,SK Park,R Jesik,O Brandt,S Caughron,G Ginther,S Grünendahl,M Perfilov,G Gutierrez,NK Mondal,T Ferbel,TG Zhao,M Wobisch,AS Ito,M Xie,B Tuchming,M Kaur,G Bernardi,E Camacho-Pérez,HE Fisk,IA Vasilyev,J Meyer,QZ Li,M Titov,K Bloom,D Vilanova,K Harder,A Pal,P Baringer,Y Enari,P Neustroev,P Gutierrez,J Stark

Published Date

2024/3/14

We measure proton structure parameters sensitive primarily to valence quarks using 8.6 fb− 1 of data collected by the D0 detector in√ s= 1.96 TeV pp collisions at the Fermilab Tevatron. We exploit the property of the forward-backward asymmetry in dilepton events to be factorized into distinct structure parameters and electroweak quark-level asymmetries. Contributions to the asymmetry from s, c and b quarks, as well as from u and d sea quarks, are suppressed allowing valence u and d quarks to be separately determined. We find an u to d quark ratio near the peak values in the quark density distributions that is smaller than predictions from modern parton distribution functions.The forward-backward asymmetry, AFB, in dilepton production at hadron colliders is due to parity violation in the electroweak interaction but also depends upon the hadron’s partonic structure [1–4]. Although many observables depend upon the experimentally indistinguishable contributions from different quark flavors, AFB has the capability to provide information on specific quarks. Contributions to AFB from the s, c and b quarks are significantly suppressed because the quark and antiquark densities are nearly the same and thus AFB predominately depends on u and d quark densities. Moreover, the asymmetries for uu and d d initial states depend differently on the dilepton mass (M), offering the possibility to obtain u and d quark densities individually. Recent analyses [5, 6] show that AFB can be factorized into sep-

Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XVII. Black Hole Mass Distribution at z∼ 6 Estimated via Spectral Comparison with Low-z Quasars

Authors

Takuma Izumi,Masafusa Onoue,Yoshiki Matsuoka,Tohru Nagao,Michael A Strauss,Masatoshi Imanishi,Nobunari Kashikawa,Seiji Fujimoto,Kotaro Kohno,Yoshiki Toba,Hideki Umehata,Tomotsugu Goto,Yoshihiro Ueda,Hikari Shirakata,John D Silverman,Jenny E Greene,Yuichi Harikane,Yasuhiro Hashimoto,Soh Ikarashi,Daisuke Iono,Kazushi Iwasawa,Chien-Hsiu Lee,Takeo Minezaki,Kouichiro Nakanishi,Yoichi Tamura,Ji-Jia Tang,Akio Taniguchi

Journal

Publications of the Astronomical Society of Japan

Published Date

2019/12/1

We present ALMA [C ii] line and far-infrared (FIR) continuum observations of three low-luminosity quasars ( mag) discovered by our Subaru Hyper Suprime-Cam (HSC) survey. The [C ii] line was detected in all three targets with luminosities of , about one order of magnitude smaller than optically luminous ( mag) quasars. The FIR continuum luminosities range from (3 limit) to , indicating a wide range in star formation rates in these galaxies. Most of the HSC quasars studied thus far show [C ii]/ FIR luminosity ratios similar to local star-forming galaxies. Using the [C ii]-based dynamical mass () as a surrogate for bulge stellar mass (), we find that a significant fraction of low-luminosity quasars are located on or even below the local – relation, particularly at the massive end of the galaxy mass distribution. In contrast, previous studies of …

Deep generative models for fast photon shower simulation in ATLAS

Authors

G Aad,B Abbott,DC Abbott,A Abed Abud,K Abeling,DK Abhayasinghe,SH Abidi,A Aboulhorma,H Abramowicz,H Abreu,Y Abulaiti,AC Abusleme Hoffman,BS Acharya,B Achkar,L Adam,C Adam Bourdarios,L Adamczyk,L Adamek,SV Addepalli,J Adelman,A Adiguzel,S Adorni,T Adye,AA Affolder,Y Afik,MN Agaras,J Agarwala,A Aggarwal,C Agheorghiesei,JA Aguilar-Saavedra,A Ahmad,F Ahmadov,WS Ahmed,X Ai,G Aielli,I Aizenberg,M Akbiyik,TPA Åkesson,AV Akimov,K Al Khoury,GL Alberghi,J Albert,P Albicocco,MJ Alconada Verzini,S Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,T Alexopoulos,A Alfonsi,F Alfonsi,M Alhroob,B Ali,S Ali,M Aliev,G Alimonti,C Allaire,BMM Allbrooke,PP Allport,A Aloisio,F Alonso,C Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,A Ambler,L Ambroz,C Amelung,D Amidei,SPAD Santos,S Amoroso,KR Amos,CS Amrouche,V Ananiev,C Anastopoulos,N Andari,T Andeen,JK Anders,SY Andrean,A Andreazza,S Angelidakis,A Angerami,AV Anisenkov,A Annovi,C Antel,MT Anthony,E Antipov,M Antonelli,DJA Antrim,F Anulli,M Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,C Appelt,N Aranzabal,V Araujo Ferraz,C Arcangeletti,ATH Arce,E Arena,J-F Arguin,S Argyropoulos,J-H Arling,AJ Armbruster,O Arnaez,H Arnold,ZP Arrubarrena Tame,G Artoni,H Asada,K Asai,S Asai,NA Asbah,EM Asimakopoulou,J Assahsah,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,PA Atmasiddha,K Augsten,S Auricchio,VA Austrup,G Avner,G Avolio,MK Ayoub,G Azuelos,D Babal,H Bachacou,K Bachas,A Bachiu,F Backman,A Badea,P Bagnaia,M Bahmani,AJ Bailey,VR Bailey,JT Baines,C Bakalis,OK Baker,PJ Bakker,E Bakos,D Bakshi Gupta,S Balaji,R Balasubramanian,EM Baldin,P Balek,E Ballabene

Journal

Computing and Software for Big Science

Published Date

2024/3/5

The need for large-scale production of highly accurate simulated event samples for the extensive physics programme of the ATLAS experiment at the Large Hadron Collider motivates the development of new simulation techniques. Building on the recent success of deep learning algorithms, variational autoencoders and generative adversarial networks are investigated for modelling the response of the central region of the ATLAS electromagnetic calorimeter to photons of various energies. The properties of synthesised showers are compared with showers from a full detector simulation using geant4. Both variational autoencoders and generative adversarial networks are capable of quickly simulating electromagnetic showers with correct total energies and stochasticity, though the modelling of some shower shape distributions requires more refinement. This feasibility study demonstrates the potential of using such algorithms for ATLAS fast calorimeter simulation in the future and shows a possible way to complement current simulation techniques.

Search for quantum black hole production in lepton+ jet final states using proton-proton collisions at s= 13 TeV with the ATLAS detector

Authors

G Aad,B Abbott,DC Abbott,A Abed Abud,K Abeling,DK Abhayasinghe,SH Abidi,OS AbouZeid,NL Abraham,H Abramowicz,H Abreu,Y Abulaiti,BS Acharya,B Achkar,L Adam,C Adam Bourdarios,L Adamczyk,L Adamek,J Adelman,M Adersberger,A Adiguzel,S Adorni,T Adye,AA Affolder,Y Afik,C Agapopoulou,MN Agaras,A Aggarwal,C Agheorghiesei,JA Aguilar-Saavedra,A Ahmad,F Ahmadov,WS Ahmed,X Ai,G Aielli,S Akatsuka,M Akbiyik,TPA Åkesson,E Akilli,AV Akimov,K Al Khoury,GL Alberghi,J Albert,MJ Alconada Verzini,S Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,T Alexopoulos,A Alfonsi,F Alfonsi,M Alhroob,B Ali,S Ali,M Aliev,G Alimonti,C Allaire,BMM Allbrooke,BW Allen,PP Allport,A Aloisio,F Alonso,C Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,A Ambler,L Ambroz,C Amelung,D Amidei,SP Amor Dos Santos,S Amoroso,CS Amrouche,F An,C Anastopoulos,N Andari,T Andeen,JK Anders,SY Andrean,A Andreazza,V Andrei,CR Anelli,S Angelidakis,A Angerami,AV Anisenkov,A Annovi,C Antel,MT Anthony,E Antipov,M Antonelli,DJA Antrim,F Anulli,M Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,N Aranzabal,V Araujo Ferraz,R Araujo Pereira,C Arcangeletti,ATH Arce,FA Arduh,JF Arguin,S Argyropoulos,JH Arling,AJ Armbruster,A Armstrong,O Arnaez,H Arnold,ZP Arrubarrena Tame,G Artoni,H Asada,K Asai,S Asai,T Asawatavonvanich,NA Asbah,EM Asimakopoulou,L Asquith,J Assahsah,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,K Augsten,VA Austrup,G Avolio,MK Ayoub,G Azuelos,H Bachacou,K Bachas,M Backes,F Backman,P Bagnaia,H Bahrasemani,AJ Bailey,VR Bailey,JT Baines,C Bakalis,OK Baker,PJ Bakker,E Bakos,D Bakshi Gupta,S Balaji,R Balasubramanian,EM Baldin,P Balek,F Balli

Journal

Physical Review D

Published Date

2024/2/27

A search for quantum black holes in electron+ jet and muon+ jet invariant mass spectra is performed with 140 fb− 1 of data collected by the ATLAS detector in proton-proton collisions at s= 13 TeV at the Large Hadron Collider. The observed invariant mass spectrum of lepton+ jet pairs is consistent with Standard Model expectations. Upper limits are set at 95% confidence level on the production cross section times branching fractions for quantum black holes decaying into a lepton and a quark in a search region with invariant mass above 2.0 TeV. The resulting quantum black hole lower mass threshold limit is 9.2 TeV in the Arkani-Hamed-Dimopoulos-Dvali model, and 6.8 TeV in the Randall-Sundrum model.

2019 VD51

Authors

S Harasawa,K Sugimori,Y-C Pan,NB Lust,Y-T Lin,H Fukuyama,AA Plazas Malagón,Y Harikane,H Aihara,SL Reed,M Koike,S Tang,K Nakajima,DS Taranu,F Nakata,T Terai,ES Rykoff,M Oguri,B-C Hsieh,N Suzuki,EL Turner,T Morishima,K Ito,Y Ono,Y Toba,E Egami,M Ando,Y Yamada,H Furusawa,K Mawatari,S More,H Murayama,H Uchiyama,X Li,PA Price,M Tanaka,H Ikeda,Y Komiyama,N Okabe,K Osato,MA Strauss,H Miyatake,M Ouchi,S Takita,J Bosch,RH Lupton,Y Suto,AJ Nishizawa,Y Liang,B Vijarnwannaluk,Y AlSayyad,CZ Waters,M Takada,Y Okura,R Armstrong,M Simunovic,M Kokubo,T Kodama,J Furusawa,S Miyazaki,N Yamamoto,T Takata,LA MacArthur,T Shibuya,I Iwata,T Yamashita,S Mineo,Y Takagi

Journal

Minor Planet Electronic Circulars

Published Date

2024/4

2019 VD51 - NASA/ADS Now on home page ads icon ads Enable full ADS view NASA/ADS 2019 VD51 Harasawa, S. ; Sugimori, K. ; Pan, Y. -C. ; Lust, NB ; Lin, Y. -T. ; Fukuyama, H. ; Plazas Malagón, AA ; Harikane, Y. ; Aihara, H. ; Reed, SL ; Koike, M. ; Tang, S. ; Nakajima, K. ; Taranu, DS ; Nakata, F. ; Terai, T. ; Rykoff, ES ; Oguri, M. ; Hsieh, B. -C. ; Suzuki, N. ; Turner, EL ; Morishima, T. ; Ito, K. ; Ono, Y. ; Toba, Y. ; Egami, E. ; Ando, M. ; Yamada, Y. ; Furusawa, H. ; Mawatari, K. ; More, S. ; Murayama, H. ; Uchiyama, H. ; Li, X. ; Price, PA ; Tanaka, M. ; Ikeda, H. ; Komiyama, Y. ; Okabe, N. ; Osato, K. ; Strauss, MA ; Miyatake, H. ; Ouchi, M. ; Takita, S. ; Bosch, J. ; Lupton, RH ; Suto, Y. ; Nishizawa, AJ ; Liang, Y. ; Vijarnwannaluk, B. and 18 more Abstract Publication: Minor Planet Electronic Circulars Pub Date: April 2024 DOI: 10.48377/MPEC/2024-G100 Bibcode: 2024MPEC....G..100. Keywords: Small Solar System bodies; …

Extended emission in high-redshift, low-luminosity NIRSpec Fixed Slit quasar spectra

Authors

Camryn Phillips,Michael Strauss,Masafusa Onoue,Xuheng Ding,Takuma Izumi,Yoshiki Matsuoka,John Silverman

Journal

American Astronomical Society Meeting Abstracts

Published Date

2024/2

We present JWST/NIRSpec fixed slit spectra of 10 z~ 6 low-luminosity quasars and their host galaxies from the HSC SHELLQs sample. By modelling and subtracting the point-source quasar profiles from the 2D spectra, we reveal extended emission to at least 3 kpc from the quasar's host galaxy. Of the 10 extracted spectra, 7 show extended emission from the [OIII] 4959/5007 doublet and/or Balmer lines, and at least two sources show evidence of an extended stellar continuum. We present analysis of these extended spectra, inferring host galaxy properties and comparing to hosts of low-luminosity quasars at lower redshifts.

Electron and photon energy calibration with the ATLAS detector using LHC Run 2 data

Authors

ATLAS Collaboration

Journal

arXiv preprint arXiv:2309.05471

Published Date

2023/9/11

Authors

Georges Aad,Braden Keim Abbott,Kira Abeling,Nils Julius Abicht,Haider Abidi,Asmaa Aboulhorma,Halina Abramowicz,Henso Abreu,Yiming Abulaiti,Bobby Samir Acharya,Claire Adam Bourdarios,Leszek Adamczyk,Sagar Addepalli,Matt Addison,Jahred Adelman,Aytul Adiguzel,Tim Adye,Tony Affolder,Yoav Afik,Merve Nazlim Agaras,Jinky Agarwala,Anamika Aggarwal,Catalin Agheorghiesei,Ammara Ahmad,Faig Ahmadov,Waleed Syed Ahmed,Sudha Ahuja,Xiaocong Ai,Giulio Aielli,Arya Aikot,Malak Ait Tamlihat,Brahim Aitbenchikh,Iakov Aizenberg,Melike Akbiyik,Torsten Akesson,Andrei Akimov,Daiya Akiyama,Nilima Nilesh Akolkar,Sina Aktas,Konie Al Khoury,Gian Luigi Alberghi,Justin Albert,Pietro Albicocco,Guillaume Lucas Albouy,Sara Alderweireldt,Zackary Lee Alegria,Martin Aleksa,Igor Alexandrov,Calin Alexa,Theodoros Alexopoulos,Fabrizio Alfonsi,Malte Algren,Muhammad Alhroob,Babar Ali,Hanadi Ali,Shahzad Ali,Samuel William Alibocus,Malik Aliev,Gianluca Alimonti,Wael Alkakhi,Corentin Allaire,Benedict Allbrooke,Julia Frances Allen,Cristian Andres Allendes Flores,Philip Patrick Allport,Alberto Aloisio,Francisco Alonso,Cristiano Alpigiani,Manuel Alvarez Estevez,Adrian Alvarez Fernandez,Mario Alves Cardoso,Mariagrazia Alviggi,Mohamed Aly,Yara Do Amaral Coutinho,Alessandro Ambler,Christoph Amelung,Maximilian Amerl,Christoph Ames,Dante Amidei,Susana Patricia Amor dos Santos,Kieran Robert Amos,Viktor Ananiev,Christos Anastopoulos,Timothy Robert Andeen,John Kenneth Anders,Stefio Yosse Andrean,Attilio Andreazza,Stylianos Angelidakis,Aaron Angerami,Alexey Anisenkov,Alberto Annovi,Claire Antel,Matthew Thomas Anthony,Egor Antipov,Mario Antonelli,Fabio Anulli,Masato Aoki,Takumi Aoki,Javier Alberto Aparisi Pozo,Marco Aparo,Ludovica Aperio Bella,Christian Appelt,Aram Apyan,Nordin Aranzabal Barrio,Sergio Javier Arbiol Val,Chiara Arcangeletti,Ayana Tamu Arce,Eloisa Arena,Jean-Francois Arguin,Spyros Argyropoulos,Jan-Hendrik Arling,Olivier Arnaez,Hannah Arnold,Giacomo Artoni,Haruka Asada,Kanae Asai,Shoji Asai,Nedaa Alexandra Asbah,Jihad Assahsah,Ketevi Adikle Assamagan,Robert Astalos,Rose Atashi,Ryan Justin Atkin,Markus Julian Atkinson,Hicham Atmani,Prachi Atmasiddha,Kamil Augsten,Silvia Auricchio,Adrien Auriol,Volker Andreas Austrup,Giuseppe Avolio,Konstantinos Axiotis,Georges Azuelos,Dominik Babal,Henri Bachacou,Konstantinos Bachas,Alexander Bachiu,Karl Filip Backman,Anthony Badea,Tamas Marton Baer,Paolo Bagnaia,Marzieh Bahmani,Daniel Bahner,Adam Bailey,Virginia Bailey,John Baines,Luke Baines,Keith Baker,Evelin Bakos,Debottam Bakshi Gupta

Published Date

2023/12/20

This paper presents a study of Higgs boson production in association with a vector boson (V = W or Z) in the fully hadronic $qqbb$ final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at $\sqrt{s}=13$ TeV and corresponding to an integrated luminosity of 137 fb$^{-1}$. The vector bosons and Higgs bosons are each reconstructed as large-radius jets and tagged using jet substructure techniques. Dedicated tagging algorithms exploiting $b$-tagging properties are used to identify jets consistent with Higgs bosons decaying into $b\bar{b}$. Dominant backgrounds from multijet production are determined directly from the data, and a likelihood fit to the jet mass distribution of Higgs boson candidates is used to extract the number of signal events. The VH production cross section is measured inclusively and differentially in several ranges of Higgs boson transverse momentum: 250-450, 450--650, and greater than 650 GeV. The inclusive signal yield relative to the Standard Model expectation is observed to be $\mu = 1.4 ^{+1.0}_{-0.9}$ and the corresponding cross section is $3.1 \pm 1.3\, (stat.)\: ^{+1.8}_{-1.4}\, (syst.$) pb.

Observation of Single-Top-Quark Production in Association with a Photon Using the ATLAS Detector

Authors

CMS Collaboration

Journal

Physical Review Letters

Published Date

2019

Authors

Journal

Physical review letters

Published Date

2024/1/12

Erratum to: Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detector

Authors

M Aaboud,G Aad,B Abbott,B Abeloos,SH Abidi,OS AbouZeid,NL Abraham,H Abramowicz,H Abreu,R Abreu,Y Abulaiti,BS Acharya,S Adachi,L Adamczyk,J Adelman,M Adersberger,T Adye,AA Affolder,Y Afik,T Agatonovic-Jovin,C Agheorghiesei,JA Aguilar-Saavedra,SP Ahlen,F Ahmadov,G Aielli,S Akatsuka,H Akerstedt,TPA Åkesson,E Akilli,AV Akimov,GL Alberghi,J Albert,P Albicocco,MJ Alconada Verzini,SC Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,G Alexander,T Alexopoulos,M Alhroob,B Ali,M Aliev,G Alimonti,J Alison,SP Alkire,BMM Allbrooke,BW Allen,PP Allport,A Aloisio,A Alonso,F Alonso,C Alpigiani,AA Alshehri,MI Alstaty,B Alvarez Gonzalez,D Álvarez Piqueras,MG Alviggi,BT Amadio,Y Amaral Coutinho,C Amelung,D Amidei,SP Amor Dos Santos,S Amoroso,G Amundsen,C Anastopoulos,LS Ancu,N Andari,T Andeen,CF Anders,JK Anders,KJ Anderson,A Andreazza,V Andrei,S Angelidakis,I Angelozzi,A Angerami,AV Anisenkov,N Anjos,A Annovi,C Antel,M Antonelli,A Antonov,DJ Antrim,F Anulli,M Aoki,L Aperio Bella,G Arabidze,Y Arai,JP Araque,V Araujo Ferraz,ATH Arce,RE Ardell,FA Arduh,JF Arguin,S Argyropoulos,M Arik,AJ Armbruster,LJ Armitage,O Arnaez,H Arnold,M Arratia,O Arslan,A Artamonov,G Artoni,S Artz,S Asai,N Asbah,A Ashkenazi,L Asquith,K Assamagan,R Astalos,M Atkinson,NB Atlay,K Augsten,G Avolio,B Axen,MK Ayoub,G Azuelos,AE Baas,MJ Baca,H Bachacou,K Bachas,M Backes,P Bagnaia,M Bahmani,H Bahrasemani,JT Baines,M Bajic,OK Baker,PJ Bakker,EM Baldin,P Balek,F Balli,WK Balunas,E Banas,A Bandyopadhyay,Sw Banerjee,AAE Bannoura,L Barak,EL Barberio,D Barberis,M Barbero,T Barillari,M-S Barisits,JT Barkeloo,T Barklow,N Barlow,SL Barnes,BM Barnett

Journal

Journal of High Energy Physics

Published Date

2023/12

Table 2. The number of observed events and the mean expected background, estimated from the maximum-likelihood fit and shown with the associated total uncertainty, for the mMγ ranges of interest. The expected Higgs and Z boson signal yields, along with the total systematic uncertainty, for ϕγ and ργ, estimated using simulations, are also shown in parentheses.

Search for the charged-lepton-flavor-violating decay Z→ eμ in pp collisions at Formula Presented with the ATLAS detector

Authors

Georges Aad,B Abbott,DC Abbott,Adam Abed Abud,Kira Abeling,Deshan Kavishka Abhayasinghe,SH Abidi,Asmaa Aboulhorma,Halina Abramowicz,Henso Abreu,Yiming Abulaiti,AC Abusleme Hoffman,Bobby Samir Acharya,Baida Achkar,Lennart Adam,C Adam Bourdarios,Leszek Adamczyk,Lukas Adamek,SV Addepalli,Jahred Adelman,Aytul Adiguzel,S Adorni,Tim Adye,AA Affolder,Yoav Afik,Christina Agapopoulou,Merve Nazlim Agaras,Jinky Agarwala,Anamika Aggarwal,Catalin Agheorghiesei,JA Aguilar-Saavedra,Ammara Ahmad,Faig Ahmadov,Waleed Syed Ahmed,Xiaocong Ai,Giulio Aielli,Iakov Aizenberg,Shunichi Akatsuka,Melike Akbiyik,TPA Åkesson,AV Akimov,Konie Al Khoury,Gian Luigi Alberghi,Justin Albert,Pietro Albicocco,MJ Alconada Verzini,Sara Alderweireldt,Martin Aleksa,IN Aleksandrov,Calin Alexa,Theodoros Alexopoulos,Alice Alfonsi,Fabrizio Alfonsi,Muhammad Alhroob,Babar Ali,Shahzad Ali,Malik Aliev,Gianluca Alimonti,Corentin Allaire,BMM Allbrooke,Philip Patrick Allport,Alberto Aloisio,Francisco Alonso,Cristiano Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,Alessandro Ambler,Luca Ambroz,Christoph Amelung,Dante Amidei,SP Amor Dos Santos,Simone Amoroso,Kieran Robert Amos,Cherifa Sabrina Amrouche,Viktor Ananiev,Christos Anastopoulos,Nansi Andari,T Andeen,John Kenneth Anders,Stefio Yosse Andrean,Attilio Andreazza,Stylianos Angelidakis,Aaron Angerami,AV Anisenkov,Alberto Annovi,Claire Antel,Matthew Thomas Anthony,Egor Antipov,Mario Antonelli,DJA Antrim,Fabio Anulli,Masato Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,N Aranzabal,V Araujo Ferraz,Chiara Arcangeletti,ATH Arce,Eloisa Arena,Jean-Francois Arguin,Spyros Argyropoulos,Jan-Hendrik Arling,Aaron James Armbruster,Alexander Armstrong,Olivier Arnaez,Hannah Arnold,ZP Arrubarrena Tame,Giacomo Artoni,Haruka Asada,Kanae Asai,Shoji Asai,Nedaa Alexandra Asbah,Eleni Myrto Asimakopoulou,Lily Asquith,Jihad Assahsah,K Assamagan,Robert Astalos,Ryan Justin Atkin,M Atkinson,Naim Bora Atlay,Hicham Atmani,PA Atmasiddha,Kamil Augsten,Silvia Auricchio,Volker Andreas Austrup,Gal Avner,Giuseppe Avolio,Mohamad Kassem Ayoub,Georges Azuelos,Dominik Babal,Henri Bachacou,Konstantinos Bachas,Alexander Bachiu,F Backman,Anthony Badea,Paolo Bagnaia,H Bahrasemani,AJ Bailey,VR Bailey,JT Baines,Christos Bakalis,OK Baker,Pepijn Johannes Bakker,Evelin Bakos,D Bakshi Gupta,Shyam Balaji,Rahul Balasubramanian

Journal

Physical Review D

Published Date

2023/8/25

A search for the charged-lepton-flavor-violating process Z→ e μ is presented, using 139 fb− 1 of s= 13 TeV p p collision data collected by the ATLAS experiment at the LHC. An excess in the e μ invariant mass spectrum near the Z boson mass would be a striking signature of new physics. No excess is observed, and an upper limit B (Z→ e μ)< 2.62× 10− 7 is placed on the branching fraction at 95% confidence level, which is the most stringent limit to date.

Are Brightest Cluster Galaxies Special?

Authors

Savannah Pobre,Roohi Dalal,Michael A Strauss,Yen-Ting Lin

Journal

Research Notes of the AAS

Published Date

2023/2/9

A longstanding question when studying Brightest Cluster Galaxies (BCGs) and their evolution is whether their luminosities are statistical extremes of the luminosity distribution of other cluster member galaxies, or whether their luminosities follow a different,“special” distribution. To explore this question, we use the two Tremaine–Richstone (TR) statistics that sometimes lead to different conclusions about BCG specialness. We run Monte Carlo simulations of galaxy clusters with varying galaxy luminosity functions and BCG properties, and explore the sensitivity of the TR statistics to the adjusted BCG properties. We identify cases where the two statistics lead to different conclusions. The first of the TR statistics, which relies on the spread of BCG luminosities, is more reliable for determining specialness than the second, which utilizes the spread in the luminosity gap between the BCG and second ranked galaxy.

Search for flavor-changing neutral-current couplings between the top quark and the Z boson with proton-proton collisions at Formula Presented with the ATLAS detector

Authors

G Aad,B Abbott,DC Abbott,A Abed Abud,K Abeling,DK Abhayasinghe,SH Abidi,A Aboulhorma,H Abramowicz,H Abreu,Y Abulaiti,AC Abusleme Hoffman,BS Acharya,B Achkar,L Adam,C Adam Bourdarios,L Adamczyk,L Adamek,SV Addepalli,J Adelman,A Adiguzel,S Adorni,T Adye,AA Affolder,Y Afik,C Agapopoulou,MN Agaras,J Agarwala,A Aggarwal,C Agheorghiesei,JA Aguilar-Saavedra,A Ahmad,F Ahmadov,WS Ahmed,X Ai,G Aielli,I Aizenberg,S Akatsuka,M Akbiyik,TPA Åkesson,AV Akimov,K Al Khoury,GL Alberghi,J Albert,P Albicocco,MJ Alconada Verzini,S Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,T Alexopoulos,A Alfonsi,F Alfonsi,M Alhroob,B Ali,S Ali,M Aliev,G Alimonti,C Allaire,BMM Allbrooke,PP Allport,A Aloisio,F Alonso,C Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,A Ambler,L Ambroz,C Amelung,D Amidei,SP Amor Dos Santos,S Amoroso,KR Amos,CS Amrouche,V Ananiev,C Anastopoulos,N Andari,T Andeen,JK Anders,SY Andrean,A Andreazza,S Angelidakis,A Angerami,AV Anisenkov,A Annovi,C Antel,MT Anthony,E Antipov,M Antonelli,DJA Antrim,F Anulli,M Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,N Aranzabal,V Araujo Ferraz,C Arcangeletti,ATH Arce,E Arena,JF Arguin,S Argyropoulos,JH Arling,AJ Armbruster,A Armstrong,O Arnaez,H Arnold,ZP Arrubarrena Tame,G Artoni,H Asada,K Asai,S Asai,NA Asbah,EM Asimakopoulou,L Asquith,J Assahsah,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,PA Atmasiddha,K Augsten,S Auricchio,VA Austrup,G Avner,G Avolio,MK Ayoub,G Azuelos,D Babal,H Bachacou,K Bachas,A Bachiu,F Backman,A Badea,P Bagnaia,M Bahmani,H Bahrasemani,AJ Bailey,VR Bailey,JT Baines,C Bakalis,OK Baker,PJ Bakker,E Bakos,D Bakshi Gupta,S Balaji

Journal

Physical Review D

Published Date

2023/8/30

A search for flavor-changing neutral-current couplings between a top quark, an up or charm quark, and a Z boson is presented, using proton–proton collision data at s= 13 TeV collected by the ATLAS detector at the Large Hadron Collider. The analyzed data set corresponds to an integrated luminosity of 139 fb− 1. The search targets both single-top-quark events produced as g q→ t Z (with q= u, c) and top-quark-pair events, with one top quark decaying through the t→ Z q channel. The analysis considers events with three leptons (electrons or muons), a b-tagged jet, possible additional jets, and missing transverse momentum. The data are found to be consistent with the background-only hypothesis and 95% confidence-level limits on the t→ Z q branching ratios, assuming only tensor operators of the Standard Model effective field theory framework contribute to the t Z q vertices. These are 6.2× 10− 5 (13× 10− 5) for t→ Z u (t→ Z c) for a left-handed t Z q coupling, and 6.6× 10− 5 (12× 10− 5) in the case of a right-handed coupling. These results are interpreted as 95% CL upper limits on the strength of the corresponding couplings, yielding limits for| C u W (13)*| and| C u B (13)*|(| C u W (31)| and| C u B (31)|) of 0.15 (0.16), and limits for| C u W (23)*| and| C u B (23)*|(| C u W (32)| and| C u B (32)|) of 0.22 (0.21), assuming a new-physics energy scale Λ NP of 1 TeV.

Shedding Light on Early Structure Formation: Disecting the Largest Gas Reservoirs of z= 6.6 QSOs

Authors

Emanuele Paolo Farina,Fabrizio Arrigoni Battaia,Eduardo Banados,Aaron J Barth,Rebekka Bieri,Sarah EI Bosman,Zheng Cai,Tiago Costa,Frederick Davies,Roberto Decarli,Alyssa Bryony Drake,Anna-Christina Eilers,Xiaohui Fan,Thales Gutcke,Zoltan Haiman,Joseph Hennawi,Hyunsung Jun,Yana Khusanova,Xiaojing Lin,Federica Loiacono,Chiara Giulia Mazzucchelli,Marcel Neeleman,Roderik Overzier,Sofia Rojas,Jan-Torge Schindler,David Sobral,Michael A Strauss,Maxime Trebitsch,Bram Venemans,Fabian Walter,Feige Wang,Jinyi Yang

Journal

JWST Proposal. Cycle 2

Published Date

2023/5

QSOs at the end of cosmic reionization are among the most luminous sources in the Universe. Their luminosity is produced by extreme gas accretion onto their central black holes, which grow by 20x in only 100Myr. Simultaneously, QSO host galaxies form hundreds of stars per year, using up gas in the process. Extensive VLT/MUSE observational campaigns recently revealed that z= 6.6 QSOs P323+ 12 and P231-20 are embed in exceptionally large (> 20pKpc) and luminous (L> 10^ 44 erg/s) Ly-Alpha nebulae. These are tracer of the enormous cool gas reservoirs that are required to continuously fuel the rapid build up of the earliest QSOs.

Weak lensing tomographic redshift distribution inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue

Authors

Markus Michael Rau,Roohi Dalal,Tianqing Zhang,Xiangchong Li,Atsushi J Nishizawa,Surhud More,Rachel Mandelbaum,Hironao Miyatake,Michael A Strauss,Masahiro Takada

Journal

Monthly Notices of the Royal Astronomical Society

Published Date

2023/7/10

We present posterior sample redshift distributions for the Hyper Suprime-Cam Subaru Strategic Program Weak Lensing three-year (HSC Y3) analysis. Using the galaxies’ photometry and spatial cross-correlations, we conduct a combined Bayesian Hierarchical Inference of the sample redshift distributions. The spatial cross-correlations are derived using a subsample of Luminous Red Galaxies (LRGs) with accurate redshift information available up to a photometric redshift of z < 1.2. We derive the photometry-based constraints using a combination of two empirical techniques calibrated on spectroscopic and multiband photometric data that cover a spatial subset of the shear catalogue. The limited spatial coverage induces a cosmic variance error budget that we include in the inference. Our cross-correlation analysis models the photometric redshift error of the LRGs to correct for systematic biases and statistical …

Observation of Production in Collisions at with the ATLAS Detector

Authors

Georges Aad,Brad Abbott,Dale C Abbott,A Abed Abud,Kira Abeling,Deshan Kavishka Abhayasinghe,Syed Haider Abidi,Asmaa Aboulhorma,Halina Abramowicz,Henso Abreu,Y Abulaiti,AC Abusleme Hoffman,BS Acharya,B Achkar,L Adam,C Adam Bourdarios,L Adamczyk,L Adamek,SV Addepalli,J Adelman,Aytül Adiguzel,S Adorni,T Adye,AA Affolder,Y Afik,C Agapopoulou,MN Agaras,J Agarwala,A Aggarwal,C Agheorghiesei,JA Aguilar-Saavedra,A Ahmad,F Ahmadov,WS Ahmed,X Ai,G Aielli,I Aizenberg,M Akbiyik,TPA Åkesson,AV Akimov,K Al Khoury,GL Alberghi,J Albert,P Albicocco,MJ Alconada Verzini,S Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,T Alexopoulos,A Alfonsi,F Alfonsi,M Alhroob,B Ali,S Ali,M Aliev,G Alimonti,C Allaire,BMM Allbrooke,PP Allport,A Aloisio,F Alonso,C Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,A Ambler,L Ambroz,C Amelung,D Amidei,SP Amor Dos Santos,S Amoroso,KR Amos,CS Amrouche,V Ananiev,C Anastopoulos,N Andari,T Andeen,JK Anders,SY Andrean,A Andreazza,S Angelidakis,A Angerami,AV Anisenkov,A Annovi,C Antel,MT Anthony,E Antipov,M Antonelli,DJA Antrim,F Anulli,M Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,N Aranzabal,V Araujo Ferraz,C Arcangeletti,ATH Arce,E Arena,JF Arguin,S Argyropoulos,J-H Arling,AJ Armbruster,O Arnaez,H Arnold,ZP Arrubarrena Tame,G Artoni,H Asada,K Asai,S Asai,NA Asbah,EM Asimakopoulou,J Assahsah,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,PA Atmasiddha,K Augsten,S Auricchio,VA Austrup,G Avner,G Avolio,MK Ayoub,G Azuelos,D Babal,H Bachacou,K Bachas,A Bachiu,F Backman,A Badea,P Bagnaia,M Bahmani,AJ Bailey,VR Bailey,JT Baines,C Bakalis,OK Baker,PJ Bakker,E Bakos,D Bakshi Gupta,S Balaji,R Balasubramanian,EM Baldin,P Balek,E Ballabene

Journal

Physical review letters

Published Date

2022/8/4

Authors

Neven Caplar,Robert Lupton,James E Gunn,Hassan Siddiqui,Paul Price,Craig Loomis,Arnaud Le Fur,Joshua E Meyers

Published Date

2022/8/29

Prime Focus Spectrograph is a state-of-the-art multifiber spectrograph being installed on the Subaru telescope. High-quality sky subtraction is of crucial importance for its successful operation. Here we describe the status of the development of modeling algorithms for point spread function determination and subtraction of skylines. Defocused data taken with dedicated lamps allows us to determine the illumination properties of individual fibers, and to determine wavefront aberrations that are present in the instrument. Based on those inputs, we are able to model the point spread function in 2D and achieve sub 1% subtraction quality for significant parts of the wavelength range covered by the available data.

First detections of stellar light from quasar host galaxies at z> 6

Authors

Xuheng Ding,Masafusa Onoue,John D Silverman,Yoshiki Matsuoka,Takuma Izumi,Michael A Strauss,Knud Jahnke,Irham Taufik Andika,Kentaro Aoki,Shunsuke Baba,Rebekka Bieri,Sarah EI Bosman,Anna-Christina Eilers,Seiji Fujimoto,Melanie Habouzit,Zoltan Haiman,Masatoshi Imanishi,Kohei Inayoshi,Kazushi Iwasawa,Nobunari Kashikawa,Toshihiro Kawaguchi,Kotaro Kohno,Chien-Hsiu Lee,Junyao Li,Alessandro Lupi,Jianwei Lyu,Tohru Nagao,Roderik Overzier,Camryn L Phillips,Jan-Torge Schindler,Malte Schramm,Kazuhiro Shimasaku,Yoshiki Toba,Benny Trakhtenbrot,Maxime Trebitsch,Tommaso Treu,Hideki Umehata,Bram P Venemans,Marianne Vestergaard,Marta Volonteri,Fabian Walter,Feige Wang,Jinyi Yang

Journal

arXiv e-prints

Published Date

2022/11

The existence of high-redshift supermassive black holes (SMBHs)--shining brightly as quasars during the first billion years of our universe--presents a conundrum in astrophysics. A broad variety of physical mechanisms have been proposed for the formation and rapid growth of these early SMBHs. Promising diagnostics are the relative properties of the black hole and its host galaxy. However, up to now, the detection of stars in quasar host galaxies has been elusive beyond , even with deep HST observations. Here, we report the first detections of the stellar component of the host galaxies of two relatively low-luminosity quasars at observed with JWST using NIRCam. After modeling and subtracting the glare from the quasar itself, we find that the host galaxies are massive (stellar mass of and M ), compact, and disk-like. Unlike most SMBHs in the nearby universe, these quasars are displaced from the …

Strong constraints on jet quenching in centrality-dependent +Pb collisions at 5.02 TeV from ATLAS

Authors

Atlas Collaboration

Journal

arXiv preprint arXiv:2206.01138

Published Date

2022/6/2

Jet quenching is the process of color-charged partons losing energy via interactions with quark-gluon plasma droplets created in heavy-ion collisions. The collective expansion of such droplets is well described by viscous hydrodynamics. Similar evidence of collectivity is consistently observed in smaller collision systems, including and +Pb collisions. In contrast, while jet quenching is observed in Pb+Pb collisions, no evidence has been found in these small systems to date, raising fundamental questions about the nature of the system created in these collisions. The ATLAS experiment at the Large Hadron Collider has measured the yield of charged hadrons correlated with reconstructed jets in 0.36 nb of +Pb and 3.6 pb of collisions at 5.02 TeV. The yields of charged hadrons with GeV near and opposite in azimuth to jets with or 60 GeV, and the ratios of these yields between +Pb and collisions, , are reported. The collision centrality of +Pb events is categorized by the energy deposited by forward neutrons from the struck nucleus. The values are consistent with unity within a few percent for hadrons with GeV at all centralities. These data provide new, strong constraints which preclude almost any parton energy loss in central +Pb collisions.

Measurements of the Higgs boson inclusive and differential fiducial cross-sections in the diphoton decay channel with pp collisions at = 13 TeV with the ATLAS …

Authors

Georges Aad,Brad Abbott,Dale C Abbott,Adam Abed Abud,Kira Abeling,Deshan Kavishka Abhayasinghe,Syed Haider Abidi,Asmaa Aboulhorma,Halina Abramowicz,Henso Abreu,Yiming Abulaiti,AC Abusleme Hoffman,Bobby Samir Acharya,Baida Achkar,Lennart Adam,C Adam Bourdarios,Leszek Adamczyk,Lukas Adamek,SV Addepalli,Jahred Adelman,Aytül Adiguzel,S Adorni,Tim Adye,AA Affolder,Y Afik,C Agapopoulou,MN Agaras,J Agarwala,A Aggarwal,C Agheorghiesei,JA Aguilar-Saavedra,A Ahmad,F Ahmadov,WS Ahmed,X Ai,G Aielli,I Aizenberg,S Akatsuka,M Akbiyik,TPA Åkesson,AV Akimov,K Al Khoury,GL Alberghi,J Albert,P Albicocco,MJ Alconada Verzini,S Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,T Alexopoulos,A Alfonsi,F Alfonsi,M Alhroob,B Ali,S Ali,M Aliev,G Alimonti,C Allaire,BMM Allbrooke,PP Allport,A Aloisio,F Alonso,C Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,A Ambler,L Ambroz,C Amelung,D Amidei,SP Amor Dos Santos,S Amoroso,KR Amos,CS Amrouche,V Ananiev,C Anastopoulos,N Andari,T Andeen,JK Anders,SY Andrean,A Andreazza,S Angelidakis,A Angerami,AV Anisenkov,A Annovi,C Antel,MT Anthony,E Antipov,M Antonelli,DJA Antrim,F Anulli,M Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,N Aranzabal,V Araujo Ferraz,C Arcangeletti,ATH Arce,E Arena,JF Arguin,S Argyropoulos,J-H Arling,AJ Armbruster,A Armstrong,O Arnaez,H Arnold,ZP Arrubarrena Tame,G Artoni,H Asada,K Asai,S Asai,NA Asbah,EM Asimakopoulou,L Asquith,J Assahsah,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,PA Atmasiddha,K Augsten,S Auricchio,VA Austrup,G Avner,G Avolio,MK Ayoub,G Azuelos,D Babal,H Bachacou,K Bachas,A Bachiu,F Backman,A Badea,P Bagnaia,M Bahmani,H Bahrasemani,AJ Bailey,VR Bailey,JT Baines,C Bakalis,OK Baker,PJ Bakker,E Bakos,D Bakshi Gupta,S Balaji

Journal

Journal of High Energy Physics

Published Date

2022/8

A measurement of inclusive and differential fiducial cross-sections for the production of the Higgs boson decaying into two photons is performed using 139 fb− 1 of proton-proton collision data recorded at= 13 TeV by the ATLAS experiment at the Large Hadron Collider. The inclusive cross-section times branching ratio, in a fiducial region closely matching the experimental selection, is measured to be 67±6 fb, which is in agreement with the state-of-the-art Standard Model prediction of 64±4 fb. Extrapolating this result to the full phase space and correcting for the branching ratio, the total cross-section for Higgs boson production is estimated to be 58±6 pb. In addition, the cross-sections in four fiducial regions sensitive to various Higgs boson production modes and differential cross-sections as a function of either one or two of several observables are measured. All the measurements are found to be in agreement …

Direct constraint on the Higgs–charm coupling from a search for Higgs boson decays into charm quarks with the ATLAS detector

Authors

Georges Aad,Brad Abbott,Dale C Abbott,A Abed Abud,Kira Abeling,Deshan Kavishka Abhayasinghe,Syed Haider Abidi,Asmaa Aboulhorma,Halina Abramowicz,Henso Abreu,Yiming Abulaiti,AC Abusleme Hoffman,Bobby Samir Acharya,Baida Achkar,Lennart Adam,C Adam Bourdarios,Leszek Adamczyk,Lukas Adamek,SV Addepalli,Jahred Adelman,Aytul Adiguzel,S Adorni,Tim Adye,AA Affolder,Yoav Afik,Merve Nazlim Agaras,Jinky Agarwala,Anamika Aggarwal,Catalin Agheorghiesei,JA Aguilar-Saavedra,Ammara Ahmad,Faig Ahmadov,Waleed Syed Ahmed,Xiaocong Ai,Giulio Aielli,Iakov Aizenberg,Melike Akbiyik,TPA Åkesson,AV Akimov,K Al Khoury,Gian Luigi Alberghi,Justin Albert,Pietro Albicocco,MJ Alconada Verzini,Sara Alderweireldt,Martin Aleksa,IN Aleksandrov,Calin Alexa,Theodoros Alexopoulos,Alice Alfonsi,Fabrizio Alfonsi,Muhammad Alhroob,Babar Ali,Shahzad Ali,Malik Aliev,Gianluca Alimonti,Corentin Allaire,BMM Allbrooke,Philip Patrick Allport,Alberto Aloisio,Francisco Alonso,Cristiano Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,Alessandro Ambler,Luca Ambroz,Christoph Amelung,Dante Amidei,SP Amor Dos Santos,Simone Amoroso,Kieran Robert Amos,Cherifa Sabrina Amrouche,Viktor Ananiev,Christos Anastopoulos,Nansi Andari,T Andeen,John Kenneth Anders,Stefio Yosse Andrean,Attilio Andreazza,Stylianos Angelidakis,Aaron Angerami,AV Anisenkov,Alberto Annovi,Claire Antel,Matthew Thomas Anthony,Egor Antipov,Mario Antonelli,DJA Antrim,Fabio Anulli,Masato Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,Christian Appelt,N Aranzabal,V Araujo Ferraz,Chiara Arcangeletti,ATH Arce,Eloisa Arena,Jean-Francois Arguin,Spyros Argyropoulos,J-H Arling,Aaron James Armbruster,Olivier Arnaez,Hannah Arnold,ZP Arrubarrena Tame,Giacomo Artoni,Haruka Asada,Kanae Asai,Shoji Asai,Nedaa Alexandra Asbah,Eleni Myrto Asimakopoulou,Jihad Assahsah,K Assamagan,Robert Astalos,Ryan Justin Atkin,M Atkinson,Naim Bora Atlay,Hicham Atmani,PA Atmasiddha,Kamil Augsten,Silvia Auricchio,Volker Andreas Austrup,Gal Avner,Giuseppe Avolio,Mohamad Kassem Ayoub,Georges Azuelos,Dominik Babal,Henri Bachacou,Konstantinos Bachas,Alexander Bachiu,F Backman,Anthony Badea,Paolo Bagnaia,Marzieh Bahmani,AJ Bailey,VR Bailey,JT Baines,Christos Bakalis,OK Baker,Pepijn Johannes Bakker,Evelin Bakos,D Bakshi Gupta,Shyam Balaji,Rahul Balasubramanian,EM Baldin,Petr Balek,Eric Ballabene

Journal

The European Physical Journal C

Published Date

2022/8/18

A search for the Higgs boson decaying into a pair of charm quarks is presented. The analysis uses proton–proton collisions to target the production of a Higgs boson in association with a leptonically decaying W or Z boson. The dataset delivered by the LHC at a centre-of-mass energy of and recorded by the ATLAS detector corresponds to an integrated luminosity of 139 fb-1. Flavour-tagging algorithms are used to identify jets originating from the hadronisation of charm quarks. The analysis method is validated with the simultaneous measurement of WW, WZ and ZZ production, with observed (expected) significances of 2.6 (2.2) standard deviations above the background-only prediction for the (W/Z) Z (→ cc¯) process and 3.8 (4.6) standard deviations for the (W/Z) W (→ cq) process. The (W/Z) H (→ cc¯) search yields an observed (expected) upper limit of 26 (31) times the predicted Standard Model cross-section times …

Measurement of the polarisation of single top quarks and antiquarks produced in the t-channel at = 13 TeV and bounds on the tWb dipole operator from the …

Authors

Georges Aad,Brad Abbott,Dale C Abbott,Adam Abed Abud,Kira Abeling,Deshan Kavishka Abhayasinghe,Syed Haider Abidi,Halina Abramowicz,Henso Abreu,Yiming Abulaiti,AC Abusleme Hoffman,Bobby Samir Acharya,Baida Achkar,Lennart Adam,C Adam Bourdarios,Leszek Adamczyk,Lukas Adamek,SV Addepalli,Jahred Adelman,Aytul Adiguzel,S Adorni,Tim Adye,AA Affolder,Y Afik,C Agapopoulou,MN Agaras,J Agarwala,A Aggarwal,C Agheorghiesei,JA Aguilar-Saavedra,A Ahmad,F Ahmadov,WS Ahmed,X Ai,G Aielli,I Aizenberg,S Akatsuka,M Akbiyik,TPA Åkesson,AV Akimov,K Al Khoury,GL Alberghi,J Albert,P Albicocco,MJ Alconada Verzini,S Alderweireldt,M Aleksa,IN Aleksandrov,C Alexa,T Alexopoulos,A Alfonsi,F Alfonsi,M Alhroob,B Ali,S Ali,M Aliev,G Alimonti,C Allaire,BMM Allbrooke,PP Allport,A Aloisio,F Alonso,C Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,A Ambler,L Ambroz,C Amelung,D Amidei,SP Amor Dos Santos,S Amoroso,CS Amrouche,C Anastopoulos,N Andari,T Andeen,JK Anders,SY Andrean,A Andreazza,S Angelidakis,A Angerami,AV Anisenkov,A Annovi,C Antel,MT Anthony,E Antipov,M Antonelli,DJA Antrim,F Anulli,M Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,N Aranzabal,V Araujo Ferraz,C Arcangeletti,ATH Arce,E Arena,JF Arguin,S Argyropoulos,J-H Arling,AJ Armbruster,A Armstrong,O Arnaez,H Arnold,ZP Arrubarrena Tame,G Artoni,H Asada,K Asai,S Asai,NA Asbah,EM Asimakopoulou,L Asquith,J Assahsah,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,PA Atmasiddha,K Augsten,S Auricchio,VA Austrup,G Avner,G Avolio,MK Ayoub,G Azuelos,D Babal,H Bachacou,K Bachas,A Bachiu,F Backman,A Badea,P Bagnaia,H Bahrasemani,AJ Bailey,VR Bailey,JT Baines,C Bakalis,OK Baker,PJ Bakker,E Bakos,D Bakshi Gupta,S Balaji,R Balasubramanian,EM Baldin,P Balek,E Ballabene

Journal

Journal of High Energy Physics

Published Date

2022/11

A simultaneous measurement of the three components of the top-quark and top-antiquark polarisation vectors in t-channel single-top-quark production is presented. This analysis is based on data from proton–proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 139 fb− 1, collected with the ATLAS detector at the LHC. Selected events contain exactly one isolated electron or muon, large missing transverse momentum and exactly two jets, one being b-tagged. Stringent selection requirements are applied to discriminate t-channel single-top-quark events from the background contributions. The top-quark and top-antiquark polarisation vectors are measured from the distributions of the direction cosines of the charged-lepton momentum in the top-quark rest frame. The three components of the polarisation vector for the selected top-quark event sample are= 0. 01±0. 18,=− 0. 029±0. 027 …

Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment

Authors

Georges Aad,Brad Abbott,Dale C Abbott,Adam Abed Abud,Kira Abeling,Deshan Kavishka Abhayasinghe,Syed Haider Abidi,Asmaa Aboulhorma,Halina Abramowicz,Henso Abreu,Yiming Abulaiti,AC Abusleme Hoffman,Bobby Samir Acharya,Baida Achkar,Lennart Adam,C Adam Bourdarios,Leszek Adamczyk,Lukas Adamek,SV Addepalli,Jahred Adelman,Aytul Adiguzel,S Adorni,Tim Adye,AA Affolder,Yoav Afik,Christina Agapopoulou,Merve Nazlim Agaras,Jinky Agarwala,Anamika Aggarwal,Catalin Agheorghiesei,JA Aguilar-Saavedra,Ammara Ahmad,Faig Ahmadov,Waleed Syed Ahmed,Xiaocong Ai,Giulio Aielli,Iakov Aizenberg,Melike Akbiyik,TPA Åkesson,AV Akimov,Konie Al Khoury,Gian Luigi Alberghi,Justin Albert,Pietro Albicocco,MJ Alconada Verzini,Sara Alderweireldt,Martin Aleksa,IN Aleksandrov,Calin Alexa,Theodoros Alexopoulos,Alice Alfonsi,Fabrizio Alfonsi,Muhammad Alhroob,Babar Ali,Shahzad Ali,Malik Aliev,Gianluca Alimonti,Corentin Allaire,BMM Allbrooke,Philip Patrick Allport,Alberto Aloisio,Francisco Alonso,Cristiano Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,Alessandro Ambler,Luca Ambroz,Christoph Amelung,Dante Amidei,SP Amor Dos Santos,Simone Amoroso,Kieran Robert Amos,Cherifa Sabrina Amrouche,Viktor Ananiev,Christos Anastopoulos,Nansi Andari,T Andeen,John Kenneth Anders,Stefio Yosse Andrean,Attilio Andreazza,Stylianos Angelidakis,Aaron Angerami,AV Anisenkov,Alberto Annovi,Claire Antel,Matthew Thomas Anthony,Egor Antipov,Mario Antonelli,DJA Antrim,Fabio Anulli,Masato Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,N Aranzabal,V Araujo Ferraz,Chiara Arcangeletti,ATH Arce,E Arena,JF Arguin,S Argyropoulos,J-H Arling,AJ Armbruster,A Armstrong,O Arnaez,H Arnold,ZP Arrubarrena Tame,G Artoni,H Asada,K Asai,S Asai,NA Asbah,EM Asimakopoulou,L Asquith,J Assahsah,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,PA Atmasiddha,K Augsten,S Auricchio,VA Austrup,G Avner,G Avolio,MK Ayoub,G Azuelos,D Babal,H Bachacou,K Bachas,A Bachiu,F Backman,A Badea,P Bagnaia,M Bahmani,AJ Bailey,VR Bailey,JT Baines,C Bakalis,OK Baker,PJ Bakker,E Bakos,D Bakshi Gupta,S Balaji,R Balasubramanian,EM Baldin

Journal

Journal of High Energy Physics

Published Date

2022/8

This paper presents updated Monte Carlo configurations used to model the production of single electroweak vector bosons (W, Z/γ∗) in association with jets in proton-proton collisions for the ATLAS experiment at the Large Hadron Collider. Improvements pertaining to the electroweak input scheme, parton-shower splitting kernels and scale-setting scheme are shown for multi-jet merged configurations accurate to next-to-leading order in the strong and electroweak couplings. The computational resources required for these set-ups are assessed, and approximations are introduced resulting in a factor three reduction of the per-event CPU time without affecting the physics modelling performance. Continuous statistical enhancement techniques are introduced by ATLAS in order to populate low cross-section regions of phase space and are shown to match or exceed the generated effective luminosity. This, together with …

Measurements of jet observables sensitive to -quark fragmentation in events at the LHC with the ATLAS detector

Authors

Georges Aad,Brad Abbott,Dale C Abbott,A Abed Abud,Kira Abeling,Deshan Kavishka Abhayasinghe,Syed Haider Abidi,OS AbouZeid,Nicola Louise Abraham,Halina Abramowicz,Henso Abreu,Yiming Abulaiti,Bobby Samir Acharya,Baida Achkar,Lennart Adam,C Adam Bourdarios,Leszek Adamczyk,Lukas Adamek,Jahred Adelman,Aytul Adiguzel,S Adorni,Tim Adye,AA Affolder,Yoav Afik,Christina Agapopoulou,Merve Nazlim Agaras,Anamika Aggarwal,Catalin Agheorghiesei,JA Aguilar-Saavedra,Ammara Ahmad,Faig Ahmadov,Waleed Syed Ahmed,Xiaocong Ai,Giulio Aielli,Shunichi Akatsuka,Melike Akbiyik,TPA Åkesson,Ece Akilli,AV Akimov,Konie Al Khoury,Gian Luigi Alberghi,Justin Albert,MJ Alconada Verzini,Sara Alderweireldt,Martin Aleksa,IN Aleksandrov,Calin Alexa,Theodoros Alexopoulos,Alice Alfonsi,Fabrizio Alfonsi,Muhammad Alhroob,Babar Ali,Shahzad Ali,Malik Aliev,Gianluca Alimonti,Corentin Allaire,BMM Allbrooke,Philip Patrick Allport,Alberto Aloisio,Francisco Alonso,Cristiano Alpigiani,E Alunno Camelia,M Alvarez Estevez,MG Alviggi,Y Amaral Coutinho,Alessandro Ambler,Luca Ambroz,Christoph Amelung,Dante Amidei,SP Amor Dos Santos,Simone Amoroso,Cherifa Sabrina Amrouche,Fenfen An,Christos Anastopoulos,Nansi Andari,T Andeen,John Kenneth Anders,Stefio Yosse Andrean,Attilio Andreazza,Victor Andrei,Christopher Ryan Anelli,Stylianos Angelidakis,Aaron Angerami,AV Anisenkov,Alberto Annovi,Claire Antel,Matthew Thomas Anthony,Egor Antipov,Mario Antonelli,DJA Antrim,Fabio Anulli,Masato Aoki,JA Aparisi Pozo,MA Aparo,L Aperio Bella,N Aranzabal,V Araujo Ferraz,R Araujo Pereira,Chiara Arcangeletti,ATH Arce,JF Arguin,S Argyropoulos,J-H Arling,AJ Armbruster,A Armstrong,O Arnaez,H Arnold,ZP Arrubarrena Tame,G Artoni,H Asada,K Asai,S Asai,T Asawatavonvanich,NA Asbah,EM Asimakopoulou,L Asquith,J Assahsah,K Assamagan,R Astalos,RJ Atkin,M Atkinson,NB Atlay,H Atmani,PA Atmasiddha,K Augsten,VA Austrup,G Avolio,MK Ayoub,G Azuelos,D Babal,H Bachacou,K Bachas,F Backman,P Bagnaia,H Bahrasemani,AJ Bailey,VR Bailey,JT Baines,C Bakalis,OK Baker,PJ Bakker,E Bakos,D Bakshi Gupta,S Balaji,R Balasubramanian,EM Baldin,P Balek,F Balli,WK Balunas,J Balz

Journal

Physical Review D

Published Date

2022/8/9

Several observables sensitive to the fragmentation of b quarks into b hadrons are measured using 36 fb− 1 of s= 13 TeV proton-proton collision data collected with the ATLAS detector at the LHC. Jets containing b hadrons are obtained from a sample of dileptonic t t events, and the associated set of charged-particle tracks is separated into those from the primary p p interaction vertex and those from the displaced b-decay secondary vertex. This division is used to construct observables that characterize the longitudinal and transverse momentum distributions of the b hadron within the jet. The measurements have been corrected for detector effects and provide a test of heavy-quark-fragmentation modeling at the LHC in a system where the top-quark decay products are color connected to the proton beam remnants. The unfolded distributions are compared with the predictions of several modern Monte Carlo parton …

The interstellar medium distribution, gas kinematics, and system dynamics of the far-infrared luminous quasar SDSS J2310+ 1855 at z= 6.0

Authors

Yali Shao,Ran Wang,Axel Weiss,Jeff Wagg,Chris L Carilli,Michael A Strauss,Fabian Walter,Pierre Cox,Xiaohui Fan,Karl M Menten,Desika Narayanan,Dominik Riechers,Frank Bertoldi,Alain Omont,Linhua Jiang

Journal

Astronomy & Astrophysics

Published Date

2022/12/1

We present Atacama Large Millimeter/submillimeter Array (ALMA) sub-kiloparsec- to kiloparsec-scale resolution observations of the [C II], CO (9–8), and OH+ (11–01) lines along with their dust continuum emission toward the far-infrared (FIR) luminous quasar SDSS J231038.88+185519.7 at z = 6.0031, to study the interstellar medium distribution, the gas kinematics, and the quasar-host system dynamics. We decompose the intensity maps of the [C II] and CO (9–8) lines and the dust continuum with two-dimensional elliptical Sérsic models. The [C II] brightness follows a flat distribution with a Sérsic index of 0.59. The CO (9–8) line and the dust continuum can be fit with an unresolved nuclear component and an extended Sérsic component with a Sérsic index of ∼1, which may correspond to the emission from an active galactic nucleus dusty molecular torus and a quasar host galaxy, respectively. The different [C …

Cosmological inference from an emulator based halo model. II. Joint analysis of galaxy-galaxy weak lensing and galaxy clustering from HSC-Y1 and SDSS

Authors

Hironao Miyatake,Sunao Sugiyama,Masahiro Takada,Takahiro Nishimichi,Masato Shirasaki,Yosuke Kobayashi,Rachel Mandelbaum,Surhud More,Masamune Oguri,Ken Osato,Youngsoo Park,Ryuichi Takahashi,Jean Coupon,Chiaki Hikage,Bau-Ching Hsieh,Yutaka Komiyama,Alexie Leauthaud,Xiangchong Li,Wentao Luo,Robert H Lupton,Satoshi Miyazaki,Hitoshi Murayama,Atsushi J Nishizawa,Paul A Price,Melanie Simet,Joshua S Speagle,Michael A Strauss,Masayuki Tanaka,Naoki Yoshida

Journal

Physical Review D

Published Date

2022/10/21

We present high-fidelity cosmology results from a blinded joint analysis of galaxy-galaxy weak lensing (Δ Σ) and projected galaxy clustering (w p) measured from the Hyper Suprime-Cam Year-1 (HSC-Y1) data and spectroscopic Sloan Digital Sky Survey (SDSS) galaxy catalogs in the redshift range 0.15< z< 0.7. We define luminosity-limited samples of SDSS galaxies to serve as the tracers of w p in three spectroscopic redshift bins, and as the lens samples for Δ Σ. For the Δ Σ measurements, we select a single sample of 4× 10 6 source galaxies over 140 deg 2 from HSC-Y1 with photometric redshifts (photo z) greater than 0.75, enabling a better handle of photo-z errors by comparing the Δ Σ amplitudes for the three lens redshift bins. The deep, high-quality HSC-Y1 data enable significant detections of the Δ Σ signals, with integrated signal-to-noise ratio S/N∼ 15 in the range 3≤ R/[h− 1 Mpc]≤ 30 for the three lens …

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The h-index of Michael A. Strauss has been 111 since 2020 and 207 in total.

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Gemini Near Infrared Spectrograph--Distant Quasar Survey: Rest-Frame Ultraviolet-Optical Spectral Properties of Broad Absorption Line Quasars

Euclid preparation. The Near-IR Background Dipole Experiment with Euclid

2019 VZ50

Measurement of the Centrality Dependence of the Dijet Yield in p+ Pb Collisions at sNN= 8.16 TeV with the ATLAS Detector

A precise measurement of the Z-boson double-differential transverse momentum and rapidity distributions in the full phase space of the decay leptons with the ATLAS …

Observation of WZγ Production in pp Collisions at s= 13 TeV with the ATLAS Detector

A quasar-galaxy merger at : black hole mass and quasar properties from the NIRSpec spectrum

2017 BG231

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are the top articles of Michael A. Strauss at Princeton University.