Alexander Belyaev

University of Southampton

H-index: 202

Europe-United Kingdom

About Alexander Belyaev

Alexander Belyaev, With an exceptional h-index of 202 and a recent h-index of 133 (since 2020), a distinguished researcher at University of Southampton, specializes in the field of Particle Physics, Cosmology, Collider Phenomenology.

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

Two-particle Bose-Einstein correlations and their Levy parameters in PbPb collisions at 5.02 TeV

Measurements of Higgs boson production in the decay channel with a pair of leptons in proton–proton collisions at TeV

Fabrication and Luminescent Properties of Er-Doped Sr5(PO4)3F Ceramics

Measurement of the Bs0→ μ+ μ− decay properties and search for the B0→ μ+ μ− decay in proton-proton collisions at s= 13TeV

Erbium-Doped Lu2O3-MgO and Sc2O3-MgO IR-Transparent Composite Ceramics

Fermionic portal to vector dark matter from a new gauge sector

Explanation of the hints for a 95 GeV Higgs boson within a 2-Higgs doublet model

Effect of hydrostatic pressure on seed germination and subsequent growth of Silybum marianum (L.) Gaertn. seedlings in Middle Ural introduction

Alexander Belyaev Information

University	University of Southampton
Position	___
Citations(all)	205564
Citations(since 2020)	88966
Cited By	166217
hIndex(all)	202
hIndex(since 2020)	133
i10Index(all)	1059
i10Index(since 2020)	824
Email	Access Email
University Profile Page	University of Southampton

Alexander Belyaev Skills & Research Interests

Particle Physics

Cosmology

Collider Phenomenology

Top articles of Alexander Belyaev

Two-particle Bose-Einstein correlations and their Levy parameters in PbPb collisions at 5.02 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Mangesh Sonawane,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Tahys Janssen,Tomas Kello,H Rejeb Sfar,Pierre Van Mechelen,Emil Sørensen Bols,Jorgen d'Hondt,Alexandre De Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,Walter Van Doninck,Senne Van Putte,David Vannerom,Barbara Clerbaux,Soumya Dansana,Gilles De Lentdecker,Laurent Favart,Dmytro Hohov,Johny Jaramillo,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Andrea Malara,Santiago Paredes,Laurent Pétré,Nicolas Postiau,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,C Rendón,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,S Thakur,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang,A Kapoor,H Liao,Z-A Liu

Journal

Physical Review C

Published Date

2024/2/23

Two-particle Bose–Einstein momentum correlation functions are studied for charged-hadron pairs in lead-lead collisions at a center-of-mass energy per nucleon pair of s NN= 5.02 TeV. The data sample, containing 4.27× 10 9 minimum bias events corresponding to an integrated luminosity of 0.607 nb− 1, was collected by the CMS experiment in 2018. The experimental results are discussed in terms of a Lévy-type source distribution. The parameters of this distribution are extracted as functions of particle pair average transverse mass and collision centrality. These parameters include the Lévy index or shape parameter α, the Lévy scale parameter R, and the correlation strength parameter λ. The source shape, characterized by α, is found to be neither Cauchy nor Gaussian, implying the need for a full Lévy analysis. Similarly to what was previously found for systems characterized by Gaussian source radii, a …

Measurements of Higgs boson production in the decay channel with a pair of leptons in proton–proton collisions at TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,MR Darwish,EA De Wolf,Tahys Janssen,T Kello,A Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen

Journal

The European Physical Journal C

Published Date

2023/7/4

Measurements of Higgs boson production, where the Higgs boson decays into a pair of τ leptons, are presented, using a sample of proton-proton collisions collected with the CMS experiment at a center-of-mass energy of, corresponding to an integrated luminosity of 138 fb-1. Three analyses are presented. Two are targeting Higgs boson production via gluon fusion and vector boson fusion: a neural network based analysis and an analysis based on an event categorization optimized on the ratio of signal over background events. These are complemented by an analysis targeting vector boson associated Higgs boson production. Results are presented in the form of signal strengths relative to the standard model predictions and products of cross sections and branching fraction to τ leptons, in up to 16 different kinematic regions. For the simultaneous measurements of the neural network based analysis and the …

Fabrication and Luminescent Properties of Er-Doped Sr5(PO4)3F Ceramics

Authors

Dmitry Permin,Marsel Nazmutdinov,Sergey Kurashkin,Stanislav Balabanov,Alexander Belyaev,Anastasia Novikova,Vitaliy Koshkin

Journal

Inorganics

Published Date

2023/1/25

Nanopowders of strontium fluoroapatite Sr5(PO4)3F (SFAP) were synthesized using a co-precipitation method with different starting strontium compounds. Based on the data of XRD, BET and SEM measurements, the nitrate-derived powders were chosen as the least agglomerated. The SFAP powders were hot pressed at 1000 °C to ceramic samples with a transmittance up to 82% in a mid-IR region. The designed approach was adopted to prepare 2 mol % of Er-doped SFAP powders and ceramics. It was established that Er:SFAP ceramics have luminescence in the range of 1.5–1.7 μm, the intensity of which increases with the calcination temperature of the initial powders.

Measurement of the Bs0→ μ+ μ− decay properties and search for the B0→ μ+ μ− decay in proton-proton collisions at s= 13TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Mangesh Sonawane,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Tahys Janssen,Tomas Kello,H Rejeb Sfar,Pierre Van Mechelen,Emil Sørensen Bols,Jorgen d'Hondt,Alexandre De Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,Walter Van Doninck,David Vannerom,Barbara Clerbaux,Gilles De Lentdecker,Laurent Favart,Dmytro Hohov,Johny Jaramillo,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Andrea Malara,Santiago Paredes,Laurent Pétré,Nicolas Postiau,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Cesar Rendón,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van den Bossche,Basile Vermassen,Liam Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,S Thakur,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang,A Kapoor,H Liao,Z-A Liu

Journal

Physics Letters B

Published Date

2023/7/10

Measurements are presented of the B s 0→ μ+ μ− branching fraction and effective lifetime, as well as results of a search for the B 0→ μ+ μ− decay in proton-proton collisions at s= 13 TeV at the LHC. The analysis is based on data collected with the CMS detector in 2016–2018 corresponding to an integrated luminosity of 140 fb− 1. The branching fraction of the B s 0→ μ+ μ− decay and the effective B s 0 meson lifetime are the most precise single measurements to date. No evidence for the B 0→ μ+ μ− decay has been found. All results are found to be consistent with the standard model predictions and previous measurements.

Erbium-Doped Lu2O3-MgO and Sc2O3-MgO IR-Transparent Composite Ceramics

Authors

Dmitry Permin,Alexander Belyaev,Vitaliy Koshkin,Sergey Kurashkin,Stanislav Balabanov,Ksenia Smetanina,Maxim Boldin,Oksana Klyusik

Journal

Nanomaterials

Published Date

2023/5/12

Novel IR-transparent ceramics of erbium-doped Lu2O3-MgO and Sc2O3-MgO composites have been successfully obtained using a combination of glycine–nitrate self-propagating high-temperature synthesis and vacuum hot-pressing methods. Composites have densities greater than 99.5% of those calculated by X-ray diffraction and consist of uniformly distributed submicron grains of magnesium and rare earth oxides. The transmittances of 1.5 mm thick composites are as high as 84.5% and 78.9% at ~5 µm for Er:Lu2O3-MgO and Er:Sc2O3-MgO, respectively. Both composites are favorable matrices for doping with erbium ions, which exhibit intense luminescence in the visible, near, and mid-IR under relevant excitation. The position of the luminescence bands is similar to Er:Lu2O3 and Er:Sc2O3 ceramics; the lifetimes of the 4I13/2 state are 8.85 ± 0.1 ms and 5.7 ± 0.2 ms for 3%Er:Lu2O3-MgO and 3%Er:Sc2O3-MgO, respectively.

Fermionic portal to vector dark matter from a new gauge sector

Authors

Alexander Belyaev,Aldo Deandrea,Stefano Moretti,Luca Panizzi,Douglas A Ross,Nakorn Thongyoi

Journal

Physical Review D

Published Date

2023/11/1

We present a new class of dark matter (DM) models wherein the Standard Model (SM) is extended with a new S U (2) D dark gauge sector. In this framework, the stability of DM is provided by the conservation of a U (1) global symmetry which, upon appropriate charge assignments for the S U (2) D multiplets, effectively leads to a Z 2 symmetry subgroup. The origin of the global U (1) symmetry which ensures the stability of DM can be justified in the form of a dark electroweak (EW) sector or through an underlying composite structure. The key ingredient of the model is a vectorlike (VL) fermion doublet of S U (2) D, the members of which are singlets of the SM EW gauge group, which mediate the interactions between the dark sector and the SM, via new Yukawa interactions. This class of models, labeled as fermion portal vector DM (FPVDM), allows multiple realizations, depending on the properties of the VL partner and …

Explanation of the hints for a 95 GeV Higgs boson within a 2-Higgs doublet model

Authors

Alexander Belyaev,Rachid Benbrik,Mohammed Boukidi,Manimala Chakraborti,Stefano Moretti,Souad Semlali

Journal

arXiv preprint arXiv:2306.09029

Published Date

2023/6/15

We suggest an explanation for and explore the consequences of the excess around 95 GeV in the di-photon and di-tau invariant mass distributions recently reported by the CMS collaboration at the Large Hadron Collider (LHC), together with the discrepancy that has long been observed at the Large Electron-Positron (LEP) collider in the invariant mass. Interestingly, the most recent findings announced by the ATLAS collaboration do not contradict, or even support, these intriguing observations. Their search in the di-photon final state similarly reveals an excess of events within the same mass range, albeit with a bit lower significance, thereby corroborating and somewhat reinforcing the observations made by CMS. We have found that all three signatures can be explained within the general 2-Higgs Doublet Model (2HDM) Type-III. We demonstrate that the lightest CP-even Higgs boson in this scenario can explain the excess in all three channels simultaneously, i.e., in the di-photon, di-tau and mass spectra, while satisfying up-to-date theoretical and experimental constraints. Moreover, the 2HDM Type-III predicts an excess in the production channel of the 125 GeV Higgs boson discovered in 2012, with properties (couplings, spin and CP quantum numbers) consistent with those predicted in the Standard Model (SM). This effect is caused by a up to 18\% enhancement of the Yukawa coupling to top (anti)quarks in comparison to the SM value. Such an effect can be tested soon at the High Luminosity LHC (HL-LHC), which can either discover or exclude the scenario we suggest. This unique characteristic of the 2HDM Type-III makes this …

Effect of hydrostatic pressure on seed germination and subsequent growth of Silybum marianum (L.) Gaertn. seedlings in Middle Ural introduction

Authors

Elena Sharova,Nikolai Kruglikov,Alexander Belyaev

Journal

E3S Web of Conferences

Published Date

2023

The influence of pre-sowing treatment of holy thistle seeds (Silybum marianum) by hydrostatic pressure (from 10 to 200 MPa) on the dynamics of the emergence of seedlings and the subsequent development of seedlings in the open ground in the Middle Urals has been studied. It is shown that the treatment of seeds with a pressure of 10 MPa during their subsequent sowing a day later (after drying) provided good germination and accelerated the passage of all stages of the ontogenesis of holy thistle plants in the dry growing season of 2021. At the same time, earlier and more friendly maturation of seeds was observed in comparison with the control group of plants. Under more favourable weather conditions in 2022, holy thistle seeds after the same pressure treatment (10MPa) and drying showed very good field germination (76%), a high rate of ontogenesis of seedlings similar to the reference and the best …

Measurement of the differential production cross section as a function of the jet mass and extraction of the top quark mass in hadronic decays of boosted top quarks

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,S Templ,W Waltenberger,C-E Wulz,MR Darwish,Tahys Janssen,T Kello,H Rejeb Sfar,P Van Mechelen,ES Bols,J D’hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,B Clerbaux,G De Lentdecker,L Favart,D Hohov,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,N Postiau,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Cesar Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,N Van Den Bossche,Basile Vermassen,Liam Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,S Thakur,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang,A Kapoor

Journal

The European Physical Journal C

Published Date

2023/7/3

A measurement of the jet mass distribution in hadronic decays of Lorentz-boosted top quarks is presented. The measurement is performed in the lepton + jets channel of top quark pair production () events, where the lepton is an electron or muon. The products of the hadronic top quark decay are reconstructed using a single large-radius jet with transverse momentum greater than 400. The data were collected with the CMS detector at the LHC in proton-proton collisions and correspond to an integrated luminosity of 138. The differential production cross section as a function of the jet mass is unfolded to the particle level and is used to extract the top quark mass. The jet mass scale is calibrated using the hadronic W boson decay within the large-radius jet. The uncertainties in the modelling of the final state radiation are reduced by studying angular correlations in the jet substructure. These developments lead to …

Search for a massive scalar resonance decaying to a light scalar and a Higgs boson in the four b quarks final state with boosted topology

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,Pierre Van Mechelen,Senne Van Putte,ES Bols,J D'Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Clerbaux,G De Lentdecker,L Favart,K Lee,M Mahdavikhorrami,I Makarenko,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,César Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van Den Bossche,Basile Vermassen,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Carsten Hensel,Arthur Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,Jordan Martins,C Mora Herrera,K Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Tahir Javaid,Monika Mittal,Li Yuan,Muhammad Ahmad,Gerry Bauer,Candan Dozen,Zhen Hu,Yi Wang,Kai Yi,Emilien Chapon,Guo-Ming Chen

Journal

Physics Letters B

Published Date

2023/7/10

We search for new massive scalar particles X and Y through the resonant process X→ Y H→ b b¯ b b¯, where H is the standard model Higgs boson. Data from CERN LHC proton-proton collisions are used, collected at a centre-of-mass energy of 13 TeV in 2016–2018 and corresponding to an integrated luminosity of 138 fb− 1. The search is performed in mass ranges of 0.9–4 TeV for X and 60–600 GeV for Y, where both Y and H are reconstructed as Lorentz-boosted single large-area jets. The results are interpreted in the context of the next-to-minimal supersymmetric standard model and also in an extension of the standard model with two additional singlet scalar fields. The 95% confidence level upper limits for the production cross section vary between 0.1 and 150 fb depending on the X and Y masses, and represent a significant improvement over results from previous searches.

Search for long-lived particles decaying to a pair of muons in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,N Krammer,S Kulkarni,L Lechner,D Liko,I Mikulec,P Paulitsch,FM Pitters,J Schieck,R Schöfbeck,D Schwarz,M Sonawane,S Templ,W Waltenberger,C-E Wulz,MR Darwish,Tahys Janssen,T Kello,H Rejeb Sfar,P Van Mechelen,ES Bols,J D’hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,B Clerbaux,G De Lentdecker,L Favart,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Cesar Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van den Bossche,Basile Vermassen,Liam Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,Kevin Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen

Journal

Journal of high energy physics

Published Date

2023/5

An inclusive search for long-lived exotic particles decaying to a pair of muons is presented. The search uses data collected by the CMS experiment at the CERN LHC in proton-proton collisions at= 13 TeV in 2016 and 2018 and corresponding to an integrated luminosity of 97.6 fb− 1. The experimental signature is a pair of oppositely charged muons originating from a common secondary vertex spatially separated from the pp interaction point by distances ranging from several hundred μm to several meters. The results are interpreted in the frameworks of the hidden Abelian Higgs model, in which the Higgs boson decays to a pair of long-lived dark photons Z D, and of a simplified model, in which long-lived particles are produced in decays of an exotic heavy neutral scalar boson. For the hidden Abelian Higgs model with m (Z D) greater than 20 GeV and less than half the mass of the Higgs boson, they provide the …

Observation of new structure in the J/J/ mass spectrum in proton-proton collisions at = 13 TeV

Authors

Aram Hayrapetyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Dietrich Liko,Ivan Mikulec,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Mangesh Sonawane,Sebastian Templ,Wolfgang Waltenberger,Claudia-Elisabeth Wulz,Mohamed Rashad Darwish,Tahys Janssen,Pierre van Mechelen,Emil Sørensen Bols,Jorgen d'Hondt,Soumya Dansana,Alexandre de Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Inna Makarenko,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,Michael Tytgat,Senne van Putte,David Vannerom,Barbara Clerbaux,Gilles de Lentdecker,Laurent Favart,Dmytro Hohov,Johny Jaramillo,Ali Khalilzadeh,Kyeongpil Lee,Mostafa Mahdavikhorrami,Andrea Malara,Santiago Paredes,Laurent Pétré,Nicolas Postiau,Laurent Thomas,Max Vanden Bemden,Pascal Vanlaer,Maarten de Coen,Didar Dobur,Yanwen Hong,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,César Rendón,Amrutha Samalan,Kirill Skovpen,Niels van den Bossche,Liam Wezenbeek,Anna Benecke,Giacomo Bruno,Claudio Caputo,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sandhya Jain,Vincent Lemaitre,Jindrich Lidrych,Paola Mastrapasqua,Kuntal Mondal,Tu Thong Tran,Sébastien Wertz,Gilvan Alves,Eduardo Coelho,Carsten Hensel,Thales Menezes de Oliveira,Arthur Moraes,Patricia Rebello Teles,Mariana Soeiro,Walter Luiz Aldá Júnior,Miguel Alves Gallo Pereira,Mapse Barroso Ferreira Filho,Helena Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo da Costa,Gustavo Gil da Silveira,Dilson de Jesus Damiao,Sandro Fonseca de Souza,Jordan Martins,Clemencia Mora Herrera,Kevin Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,Sheila Mara Silva Do Amaral,Andre Sznajder,Mauricio Thiel,Antonio Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,Thiago Tomei,Eduardo de Moraes Gregores,Pedro G Mercadante,Sergio F Novaes,Breno Orzari,Sandra Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Elton Shumka,Sumit Keshri,Shalini Thakur,Tongguang Cheng,Qianying Guo,Tahir Javaid,Monika Mittal,Li Yuan,Gerry Bauer,Jiahua Chen,Jinjing Gu,Zhen Hu,Jinfeng Liu,Xining Wang,Hongwei Wen,Kai Yi,Jingqing Zhang,Guo-Ming Chen,He-Sheng Chen,Mingshui Chen,Fabio Iemmi,Chun-Hua Jiang,Anshul Kapoor,Hongbo Liao

Published Date

2023/10/12

A search is reported for near-threshold structures in the J/J/ invariant mass spectrum produced in proton-proton collisions at = 13 TeV from data collected by the CMS experiment, corresponding to an integrated luminosity of 135 fb. A new structure is observed with a significance above 5 standard deviations at a mass of 6552 10 (stat) 12 (syst) MeV. Another structure with even higher significance is found at a mass of 6927 9 (stat) 4 (syst) MeV, which is consistent with the X(6900) resonance reported by the LHCb experiment and confirmed by the ATLAS experiment. Evidence for another new structure, with a local significance of 4.1 standard deviations, is found at a mass of 7287 (stat) 5 (syst) MeV. The masses and significances are obtained in a model without considering possible quantum mechanical interference between the resonances. Incorporating this interference provides a better description of the mass spectrum between the resonances and shifts the measured masses by up to 150 MeV.

Search for top squarks in the four-body decay mode with single lepton final states in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Mangesh Sonawane,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Tahys Janssen,Tomas Kello,H Rejeb Sfar,Pierre Van Mechelen,Emil Sørensen Bols,Jorgen D’Hondt,Alexandre De Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,W Van Doninck,D Vannerom,B Clerbaux,G De Lentdecker,L Favart,D Hohov,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,N Postiau,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,C Rendón,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,S Thakur,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang,A Kapoor,H Liao,Z-A Liu

Journal

Journal of High Energy Physics

Published Date

2023/6

A search for the pair production of the lightest supersymmetric partner of the top quark, the top squark (), is presented. The search targets the four-body decay of the, which is preferred when the mass difference between the top squark and the lightest supersymmetric particle is smaller than the mass of the W boson. This decay mode consists of a bottom quark, two other fermions, and the lightest neutralino (), which is assumed to be the lightest supersymmetric particle. The data correspond to an integrated luminosity of 138 fb− 1 of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment at the CERN LHC. Events are selected using the presence of a high-momentum jet, an electron or muon with low transverse momentum, and a significant missing transverse momentum. The signal is selected based on a multivariate approach that is optimized for the difference between m () and …

Alternative technology of safflower cultivation by sewage sludge use as a fertilizer-ameliorant

Authors

Alina Mezhevova,Yuliya Berestneva,Alexander Belyaev

Journal

E3S Web of Conferences

Published Date

2023

The effect of sewage sludge as a fertilizer-ameliorant in the safflower cultivation was studied. Sewage sludge from Volzhskij wastewater treatment plants prepurified by enzyme-cavitation method was used as a fertilizer-ameliorant in the safflower cultivation. It was found that prepurified sewage sludge is environmentally friendly and has a high fertilizing value. The amino acid composition of safflower seeds was studied. The obtained data indicate that sewage sludge introduction made it possible to significantly increase the safflower nutritional value and the soil microbiological activity. It was found that the greatest increase in the safflower crop yields was observed in the case of sewage sludge introduction at a dose of 10 t/ha with chisel tillage. It can be stated that the technology of safflower cultivation proposed by us, including the application of sewage sludge as a fertilizer-ameliorant in combination with the chisel …

Search for the lepton-flavor violating decay of the Higgs boson and additional Higgs bosons in the eμ final state in proton-proton collisions at s= 13 TeV

Authors

Aram Hayrapetyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Mangesh Sonawane,Sebastian Templ,Wolfgang Waltenberger,Claudia-Elisabeth Wulz,Mohamed Rashad Darwish,Tahys Janssen,Tomas Kello,Pierre Van Mechelen,Emil Sørensen Bols,Jorgen D’Hondt,Alexandre De Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Inna Makarenko,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,Senne Van Putte,David Vannerom,Barbara Clerbaux,Soumya Dansana,Gilles De Lentdecker,Laurent Favart,Dmytro Hohov,Johny Jaramillo,Kyeongpil Lee,Mostafa Mahdavikhorrami,Andrea Malara,Santiago Paredes,Laurent Pétré,Nicolas Postiau,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,Maarten De Coen,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Cesar Rendón,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van den Bossche,Basile Vermassen,Liam Wezenbeek,A Benecke,G Bruno,F Bury,C Caputo,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,J Lidrych,P Mastrapasqua,K Mondal,TT Tran,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,Kevin Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,A Vilela Pereira,CA Bernardes,L Calligaris,TR Tomei,EM Gregores,PG Mercadante,SF Novaes,B Orzari,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,S Keshri,S Thakur,T Cheng,Q Guo,T Javaid,M Mittal,L Yuan,G Bauer,Z Hu,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang,A Kapoor,H Liao,ZA Liu,F Monti,R Sharma

Journal

Physical Review D

Published Date

2023/10/10

A search for the lepton-flavor violating decay of the Higgs boson and potential additional Higgs bosons with a mass in the range 110–160 GeV to an e±μ∓ pair is presented. The search is performed with a proton-proton collision dataset at a center-of-mass energy of 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb− 1. No excess is observed for the Higgs boson. The observed (expected) upper limit on the e±μ∓ branching fraction for it is determined to be 4.4 (4.7)× 10− 5 at 95% confidence level, the most stringent limit set thus far from direct searches. The largest excess of events over the expected background in the full mass range of the search is observed at an e±μ∓ invariant mass of approximately 146 GeV with a local (global) significance of 3.8 (2.8) standard deviations.

Search for Higgs boson decays into Z and J/ψ and for Higgs and Z boson decays into J/ψ or Y pairs in pp collisions at s= 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,Pierre Van Mechelen,Senne Van Putte,ES Bols,J D'Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Clerbaux,G De Lentdecker,L Favart,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,César Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van den Bossche,Basile Vermassen,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Carsten Hensel,Arthur Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,Jordan Martins,C Mora Herrera,K Mota Amarilo,Luiz Mundim,Helio Nogima,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Tahir Javaid,Monika Mittal,Li Yuan,Muhammad Ahmad,Gerry Bauer,Candan Dozen,Zhen Hu,Yi Wang,Kai Yi,Emilien Chapon,Guo-Ming Chen

Journal

Physics Letters B

Published Date

2023/7/10

Decays of the Higgs boson into a Image 1 boson and a Image 2 or Image 3 meson are searched for in four-lepton final states with the CMS detector at the LHC. A data set of proton-proton collisions corresponding to an integrated luminosity of 138 fb− 1 is used. Using the same data set, decays of the Higgs and Image 1 boson into quarkonium pairs are also searched for. An observation of such decays with this sample would indicate the presence of physics beyond the standard model. No evidence for these decays has been observed and upper limits at the 95% confidence level are placed on the corresponding branching fractions (B). Assuming longitudinal polarization of the Higgs boson decay products, 95% confidence level observed upper limits for Image 4 and Image 5 are 1.9× 10− 3 and 6.6× 10− 3, respectively.

Strange hadron collectivity in pPb and PbPb collisions

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,Alberto Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,Pierre Van Mechelen,Senne Van Putte,F Blekman,ES Bols,J D’Hondt,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,P Van Mulders,D Beghin,B Bilin,B Clerbaux,G De Lentdecker,L Favart,A Grebenyuk,AK Kalsi,K Lee,M Mahdavikhorrami,I Makarenko,L Moureaux,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Tom Cornelis,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Basile Vermassen,Martina Vit,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,M Teklishyn,TT Tran,P Vischia,S Wertz,GA Alves,C Hensel,A Moraes,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,S Fonseca De Souza,C Mora Herrera,Kevin Mota Amarilo,L Mundim,H Nogima,P Rebello Teles,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,C Dozen,Z Hu,J Martins,Y Wang,K Yi

Journal

Journal of High Energy Physics

Published Date

2023/5

The collective behavior of and strange hadrons is studied by measuring the elliptic azimuthal anisotropy (v 2) using the scalar-product and multiparticle correlation methods. Proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy= 8. 16 TeV and lead-lead (PbPb) collisions at= 5. 02 TeV collected by the CMS experiment at the LHC are investigated. Nonflow effects in the pPb collisions are studied by using a subevent cumulant analysis and by excluding events where a jet with transverse momentum greater than 20 GeV is present. The strange hadron v 2 values extracted in pPb collisions via the four-and six-particle correlation method are found to be nearly identical, suggesting the collective behavior. Comparisons of the pPb and PbPb results for both strange hadrons and charged particles illustrate how event-by-event flow fluctuations depend on the system size.

Biomechanical activation of blood platelets via adhesion to von Willebrand factor studied with mesoscopic simulations

Authors

Aleksey V Belyaev,Yulia K Kushchenko

Journal

Biomechanics and Modeling in Mechanobiology

Published Date

2023/6

Platelet adhesion and activation are essential initial processes of arterial and microvascular hemostasis, where high hydrodynamic forces from the bloodflow impede coagulation. The process relies on von Willebrand factor (VWF)—a linear multimeric protein of blood plasma plays a pivotal role in mechanochemical regulation of shear-induced platelet aggregation (SIPA). Adhesive interactions between VWF and glycoprotein receptors GPIb are crucial for platelet recruitment under high shear stress in fluid. Recent advances in experimental studies revealed that mechanical tension on the extracellular part of GPIb may trigger a cascade of biochemical reactions in platelets leading to activation of integrins (also known as GPIIb/IIIa) and strengthening of the adhesion. The present paper is aimed at investigation of this process by three-dimensional computer simulations of platelet adhesion to surface-grafted VWF …

Search for Higgs boson pairs decaying to WWWW, WW*ττ, and ττττ in proton-proton collisions at = 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Alberto Escalante Del Valle,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,Pierre Van Mechelen,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,S Moortgat,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,D Vannerom,D Beghin,B Clerbaux,G De Lentdecker,L Favart,J Jaramillo,K Lee,M Mahdavikhorrami,I Makarenko,A Malara,S Paredes,L Pétré,A Popov,N Postiau,E Starling,L Thomas,M Vanden Bemden,C Vander Velde,Pascal Vanlaer,Didar Dobur,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Marek Niedziela,César Rendón,Christos Roskas,Amrutha Samalan,Kirill Skovpen,Michael Tytgat,Niels Van den Bossche,Basile Vermassen,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,F Bury,Claudio Caputo,Pieter David,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Khawla Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,Kevin Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,Peicho Petkov,A Petrov,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,K Yi,GM Chen,HS Chen,M Chen,F Iemmi

Journal

Journal of High Energy Physics

Published Date

2023/7

The results of a search for Higgs boson pair (HH) production in the WW* WW*, WW* ττ, and ττττ decay modes are presented. The search uses 138 fb− 1 of proton-proton collision data recorded by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV from 2016 to 2018. Analyzed events contain two, three, or four reconstructed leptons, including electrons, muons, and hadronically decaying tau leptons. No evidence for a signal is found in the data. Upper limits are set on the cross section for nonresonant HH production, as well as resonant production in which a new heavy particle decays to a pair of Higgs bosons. For nonresonant production, the observed (expected) upper limit on the cross section at 95% confidence level (CL) is 21.3 (19.4) times the standard model (SM) prediction. The observed (expected) ratio of the trilinear Higgs boson self-coupling to its value in the SM is constrained to be within …

Search for nonresonant Higgs boson pair production in final state with two bottom quarks and two tau leptons in proton-proton collisions at s= 13 TeV

Authors

Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,A Escalante Del Valle,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Dennis Schwarz,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Tahys Janssen,Tomas Kello,H Rejeb Sfar,Pierre Van Mechelen,Emil Sørensen Bols,Jorgen d'Hondt,Alexandre De Moor,Martin Delcourt,Hesham El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,Walter Van Doninck,David Vannerom,Barbara Clerbaux,Gilles De Lentdecker,Laurent Favart,Johny Jaramillo,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Andrea Malara,Santiago Paredes,Laurent Pétré,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Rendón,C Roskas,A Samalan,K Skovpen,M Tytgat,N Van Den Bossche,B Vermassen,L Wezenbeek,A Benecke,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,V Lemaitre,K Mondal,J Prisciandaro,A Taliercio,TT Tran,P Vischia,S Wertz,GA Alves,E Coelho,C Hensel,A Moraes,P Rebello Teles,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,W Carvalho,J Chinellato,EM Da Costa,GG Da Silveira,D De Jesus Damiao,V Dos Santos Sousa,S Fonseca De Souza,J Martins,C Mora Herrera,K Mota Amarilo,L Mundim,H Nogima,A Santoro,SM Silva Do Amaral,A Sznajder,M Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,CA Bernardes,L Calligaris,TR Fernandez Perez Tomei,EM Gregores,PG Mercadante,SF Novaes,Sandra S Padula,A Aleksandrov,G Antchev,R Hadjiiska,P Iaydjiev,M Misheva,M Rodozov,M Shopova,G Sultanov,A Dimitrov,T Ivanov,L Litov,B Pavlov,P Petkov,A Petrov,E Shumka,T Cheng,T Javaid,M Mittal,L Yuan,M Ahmad,G Bauer,Z Hu,S Lezki,K Yi,GM Chen,HS Chen,M Chen,F Iemmi,CH Jiang

Journal

Physics Letters B

Published Date

2023/7/10

A search for the nonresonant production of Higgs boson pairs (HH) via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two tau leptons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of s= 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb− 1. Events in which at least one tau lepton decays hadronically are considered and multiple machine learning techniques are used to identify and extract the signal. The data are found to be consistent, within uncertainties, with the standard model (SM) predictions. Upper limits on the HH production cross section are set to constrain the parameter space for anomalous Higgs boson couplings. The observed (expected) upper limit at 95% confidence level corresponds to 3.3 (5.2) times the SM prediction for the inclusive HH cross section and to …

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