Prof Prafulla Kumar Behera
Indian Institute of Technology Madras
H-index: 205
Asia-India
About Prof Prafulla Kumar Behera
Prof Prafulla Kumar Behera, With an exceptional h-index of 205 and a recent h-index of 128 (since 2020), a distinguished researcher at Indian Institute of Technology Madras, specializes in the field of Experimental High Energy Physics.
His recent articles reflect a diverse array of research interests and contributions to the field:
Measurement of the production cross section for a W boson in association with a charm quark in proton–proton collisions at [... formula...]
Search for a dark leptophilic scalar produced in association with pair in annihilation at center-of-mass energies near 10.58 GeV
Observation of the J/K decay
Search for a scalar or pseudoscalar dilepton resonance produced in association with a massive vector boson or top quark-antiquark pair in multilepton events at $\sqrt {s} $= 13 TeV
BSMACRN: Design of an efficient Blockchain-based Security Model for improving Attack-resilience of Cognitive Radio Ad-hoc Networks
Measurement of asymmetries in decays at Belle II
Search for new physics with emerging jets in proton-proton collisions at = 13 TeV
Measurement of energy correlators inside jets and determination of the strong coupling
Prof Prafulla Kumar Behera Information
University | Indian Institute of Technology Madras |
|---|---|
Position | Professor of Physics |
Citations(all) | 215845 |
Citations(since 2020) | 89672 |
Cited By | 153392 |
hIndex(all) | 205 |
hIndex(since 2020) | 128 |
i10Index(all) | 1384 |
i10Index(since 2020) | 1002 |
University Profile Page | Indian Institute of Technology Madras |
Prof Prafulla Kumar Behera Skills & Research Interests
Experimental High Energy Physics
Top articles of Prof Prafulla Kumar Behera
Measurement of the production cross section for a W boson in association with a charm quark in proton–proton collisions at [... formula...]
Authors
CMS collaboration
Journal
The European physical journal. C, Particles and fields
Published Date
2024
The strange quark content of the proton is probed through the measurement of the production cross section for a W boson and a charm (c) quark in proton–proton collisions at a center-of-mass energy of 13 Te V. The analysis uses a data sample corresponding to a total integrated luminosity of 138 fb-1 collected with the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm jets are tagged using the presence of a muon or a secondary vertex inside the jet. The W+ c production cross section and the cross section ratio R c±= σ (W++ c)/σ (W-+ c) are measured inclusively and differentially as functions of the transverse momentum and the pseudorapidity of the lepton originating from the W boson decay. The precision of the measurements is improved with respect to previous studies, reaching 1% in R c±= 0.950±0.005 (stat)±0.010 (syst). The …
Search for a dark leptophilic scalar produced in association with pair in annihilation at center-of-mass energies near 10.58 GeV
Authors
D Biswas,Sw Banerjee,I Adachi,H Aihara,DM Asner,T Aushev,R Ayad,V Babu,P Behera,J Bennett,M Bessner,V Bhardwaj,B Bhuyan,T Bilka,D Bodrov,J Borah,A Bozek,M Bračko,P Branchini,TE Browder,A Budano,M Campajola,D Červenkov,M-C Chang,P Chang,BG Cheon,K Chilikin,HE Cho,K Cho,S-K Choi,Y Choi,S Choudhury,D Cinabro,S Das,G De Nardo,G De Pietro,R Dhamija,F Di Capua,J Dingfelder,Z Doležal,TV Dong,S Dubey,P Ecker,D Epifanov,T Ferber,BG Fulsom,V Gaur,A Garmash,A Giri,P Goldenzweig,E Graziani,Y Guan,K Gudkova,C Hadjivasiliou,K Hayasaka,H Hayashii,S Hazra,MT Hedges,D Herrmann,M Hernández Villanueva,W-S Hou,C-L Hsu,K Inami,G Inguglia,N Ipsita,A Ishikawa,R Itoh,M Iwasaki,WW Jacobs,QP Ji,S Jia,Y Jin,KK Joo,AB Kaliyar,C Kiesling,CH Kim,DY Kim,K-H Kim,YJ Kim,Y-K Kim,P Kodyš,T Konno,A Korobov,S Korpar,P Križan,P Krokovny,M Kumar,K Kumara,Y-J Kwon,Y-T Lai,M Laurenza,SC Lee,D Levit,J Li,LK Li,Y Li,L Li Gioi,J Libby,K Lieret,Y-R Lin,D Liventsev,T Luo,Y Ma,M Masuda,SK Maurya,F Meier,M Merola,F Metzner,K Miyabayashi,R Mizuk,I Nakamura,M Nakao,Z Natkaniec,A Natochii,L Nayak,M Niiyama,NK Nisar,S Nishida,S Ogawa,H Ono,P Pakhlov,G Pakhlova,S Pardi,H Park,J Park,S-H Park,A Passeri,S Patra,S Paul,R Pestotnik,LE Piilonen,T Podobnik,E Prencipe,MT Prim,N Rout,G Russo,S Sandilya,L Santelj,V Savinov,G Schnell,C Schwanda,Y Seino,K Senyo,ME Sevior,W Shan,C Sharma,J-G Shiu,B Shwartz,JB Singh,A Sokolov
Journal
Physical Review D
Published Date
2024/2/5
A dark leptophilic scalar (ϕ L) is a hypothetical particle that couples only to leptons rather than quarks. We report on a search for ϕ L in the e+ e−→ τ+ τ− ϕ L, ϕ L→ ℓ+ ℓ−(ℓ= e, μ) process using 626 fb− 1 of data collected by the Belle experiment near the ϒ (4 S) resonance. We validate the backgrounds with multiple control regions in data, using a novel multiclass multivariate event classifier. In absence of a signal, we quote upper limits at the 90% confidence level on the coupling between ϕ L and leptons. Our bounds, obtained in a blinded approach, are 19% more constraining than the previous limits, averaged over the mass range 0.04≤ m ϕ L≤ 6.5 GeV. We exclude the parameter space below 4 GeV favored by measurement of the anomalous magnetic moment of the muon.
Observation of the J/K decay
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,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,Zhen Hu,Jinfeng Liu,Kai Yi,Guo-Ming Chen,He-Sheng Chen,Mingshui Chen,Fabio Iemmi,Chun-Hua Jiang,Anshul Kapoor,Hongbo Liao,Zhenan Liu,Fabio Monti,Muhammad Aamir Shahzad,Ramkrishna Sharma,Jia-Ning Song,Junquan Tao
Published Date
2024/1/30
Using proton-proton collision data corresponding to an integrated luminosity of 140 fb collected by the CMS experiment at = 13 TeV, the J/K decay is observed for the first time, with a statistical significance exceeding 5 standard deviations. The relative branching fraction, with respect to the (2S) decay, is measured to be ( J/K)/( (2S)) = [3.38 1.02 0.61 0.03]%, where the first uncertainty is statistical, the second is systematic, and the third is related to the uncertainties in ((2S) J/) and ( ).
Search for a scalar or pseudoscalar dilepton resonance produced in association with a massive vector boson or top quark-antiquark pair in multilepton events at $\sqrt {s} $= 13 TeV
Authors
Armen Tumasyan
Published Date
2024/2/16
A search for beyond the standard model spin-0 bosons, , that decay into pairs of electrons, muons, or tau leptons is presented. The search targets the associated production of such bosons with a W or Z gauge boson, or a top quark-antiquark pair, and uses events with three or four charged leptons, including hadronically decaying tau leptons. The proton-proton collision data set used in the analysis was collected at the LHC from 2016 to 2018 at a center-of-mass energy of 13 TeV, and corresponds to an integrated luminosity of 138 fb. The observations are consistent with the predictions from standard model processes. Upper limits are placed on the product of cross sections and branching fractions of such new particles over the mass range of 15 to 350 GeV with scalar, pseudoscalar, or Higgs-boson-like couplings, as well as on the product of coupling parameters and branching fractions. Several model-dependent exclusion limits are also presented. For a Higgs-boson-like model, limits are set on the mixing angle of the Higgs boson with the boson. For the associated production of a boson with a top quark-antiquark pair, limits are set on the coupling to top quarks. Finally, limits are set for the first time on a fermiophilic dilaton-like model with scalar couplings and a fermiophilic axion-like model with pseudoscalar couplings.
BSMACRN: Design of an efficient Blockchain-based Security Model for improving Attack-resilience of Cognitive Radio Ad-hoc Networks
Authors
Debabrata Dansana,Prafulla Kumar Behera,S Gopal Krishna Patro,Quadri Noorulhasan Naveed,Ayodele Lasisi,Anteneh Wogasso Wodajo
Journal
IEEE Access
Published Date
2024/1/8
Cognitive Radio Ad-hoc Networks (CRAHNs) are under constant attacks from compromised primary & secondary nodes. These attacks focus on bandwidth manipulation, internal configuration manipulation, and selective spoofing, which can disturb the normal working of the CRAHNs. Researchers propose various security models to mitigate these attacks, each with limitations. Most of these models have higher complexity, while others cannot be used to mitigate multiple attack types. To overcome these issues while maintaining higher security and Quality of Service (QoS) under attacks, this text proposes a design of a novel blockchain-based security model for improving attack resilience in CRAHNs. The model initially collects multiple information sets from different cognitive radio controllers and creates active & redundant miners for the storage of these sets. The number of active & redundant miners is decided via a …
Measurement of asymmetries in decays at Belle II
Authors
I Adachi,L Aggarwal,H Ahmed,H Aihara,N Akopov,A Aloisio,N Anh Ky,DM Asner,H Atmacan,T Aushev,V Aushev,M Aversano,V Babu,H Bae,S Bahinipati,P Bambade,Sw Banerjee,M Barrett,J Baudot,A Baur,A Beaubien,F Becherer,J Becker,JV Bennett,FU Bernlochner,V Bertacchi,M Bertemes,E Bertholet,M Bessner,S Bettarini,B Bhuyan,F Bianchi,T Bilka,S Bilokin,D Biswas,A Bobrov,D Bodrov,A Bolz,A Bondar,J Borah,A Bozek,M Bračko,P Branchini,RA Briere,TE Browder,A Budano,S Bussino,M Campajola,L Cao,G Casarosa,C Cecchi,J Cerasoli,M-C Chang,P Chang,P Cheema,C Chen,BG Cheon,K Chilikin,K Chirapatpimol,H-E Cho,K Cho,S-J Cho,S-K Choi,S Choudhury,L Corona,S Das,F Dattola,De La Cruz-Burelo,SA De La Motte,G De Nardo,M De Nuccio,G De Pietro,R de Sangro,M Destefanis,R Dhamija,A Di Canto,F Di Capua,J Dingfelder,Z Doležal,TV Dong,M Dorigo,K Dort,S Dreyer,S Dubey,G Dujany,P Ecker,M Eliachevitch,P Feichtinger,T Ferber,D Ferlewicz,T Fillinger,C Finck,G Finocchiaro,A Fodor,F Forti,A Frey,BG Fulsom,A Gabrielli,E Ganiev,M Garcia-Hernandez,R Garg,G Gaudino,V Gaur,A Gaz,A Gellrich,G Ghevondyan,D Ghosh,H Ghumaryan,G Giakoustidis,R Giordano,A Giri,B Gobbo,R Godang,O Gogota,P Goldenzweig,W Gradl,T Grammatico,E Graziani,D Greenwald,Z Gruberová,T Gu,Y Guan,K Gudkova,S Halder,Y Han,K Hara,T Hara,H Hayashii,S Hazra,C Hearty,MT Hedges,A Heidelbach,I Heredia de la Cruz,M Hernández Villanueva,T Higuchi,M Hoek,M Hohmann,P Horak,C-L Hsu,T Humair,T Iijima,N Ipsita,A Ishikawa,R Itoh,M Iwasaki,P Jackson,WW Jacobs,E-J Jang,QP Ji,S Jia
Journal
arXiv preprint arXiv:2402.03713
Published Date
2024/2/6
We describe a measurement of charge-parity () violation asymmetries in decays using Belle II data. We consider and decays. The data were collected at the SuperKEKB asymmetric-energy collider between the years 2019 and 2022, and contain bottom-antibottom meson pairs. We reconstruct signal decays and extract the violating parameters from a fit to the distribution of the proper-decay-time difference between the two mesons. The measured direct and mixing-induced asymmetries are and , respectively, where the first uncertainties are statistical and the second are systematic. These results are in agreement with current world averages and standard model predictions.
Search for new physics with emerging jets 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,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,A Li,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,Nordin Breugelmans,Jorgen d'Hondt,Soumya Dansana,Alexandre de Moor,Martin Delcourt,Felix Heyen,Steven Lowette,Inna Makarenko,Denise Müller,Stefaan Tavernier,Michael Tytgat,Gerrit Patrick van Onsem,Senne van Putte,David Vannerom,Barbara Clerbaux,Aloke Kumar Das,Gilles de Lentdecker,Hugues Evard,Laurent Favart,Paraskevas Gianneios,Dmytro Hohov,Johny Jaramillo,Ali Khalilzadeh,Fakhri Alam Khan,Kyeongpil Lee,Mostafa Mahdavikhorrami,Andrea Malara,Santiago Paredes,Laurent Thomas,Max Vanden Bemden,Pascal Vanlaer,Maarten de Coen,Didar Dobur,Gul Gokbulut,Yanwen Hong,Joscha Knolle,Luka Lambrecht,David Marckx,Gianny Mestdach,Kevin Mota Amarilo,César Rendón,Amrutha Samalan,Kirill Skovpen,Niels van den Bossche,Jan van der Linden,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,Claudio Caputo,Jerome de Favereau de Jeneret,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Ahmet Oguz Guzel,Sandhya Jain,Vincent Lemaitre,Jindrich Lidrych,Paola Mastrapasqua,Tu Thong Tran,Sébastien Wertz,Gilvan Alves,Eduardo Coelho,Carsten Hensel,Thales Menezes de Oliveira,Arthur Moraes,Patricia Rebello Teles,Mariana Soeiro,Antonio Vilela Pereira,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,Raphael Gomes de Souza,Matheus Macedo,Jordan Martins,Clemencia Mora Herrera,Luiz Mundim,Helio Nogima,Joao Pedro Pinheiro,Alberto Santoro,Andre Sznajder,Mauricio Thiel,Cesar Augusto Bernardes,Luigi Calligaris,Thiago Tomei,Eduardo de Moraes Gregores,Isabela Maietto Silverio,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,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Elton Shumka,Sumit Keshri,Shalini Thakur,Tongguang Cheng,Tahir Javaid,Li Yuan,Zhen Hu,Zhengchen Liang,Jinfeng Liu,Kai Yi,Guo-Ming Chen,He-Sheng Chen,Mingshui Chen,Fabio Iemmi,Chun-Hua Jiang,Anshul Kapoor
Published Date
2024/3/21
A search for ``emerging jets'' produced in proton-proton collisions at a center-of-mass energy of 13 TeV is performed using data collected by the CMS experiment corresponding to an integrated luminosity of 138 fb. This search examines a hypothetical dark quantum chromodynamics (QCD) sector that couples to the standard model (SM) through a scalar mediator. The scalar mediator decays into an SM quark and a dark sector quark. As the dark sector quark showers and hadronizes, it produces long-lived dark mesons that subsequently decay into SM particles, resulting in a jet, known as an emerging jet, with multiple displaced vertices. This search looks for pair production of the scalar mediator at the LHC, which yields events with two SM jets and two emerging jets at leading order. The results are interpreted using two dark sector models with different flavor structures, and exclude mediator masses up to 1950 (1850) GeV for an unflavored (flavor-aligned) dark QCD model. The unflavored results surpass a previous search for emerging jets by setting the most stringent mediator mass exclusion limits to date, while the flavor-aligned results provide the first direct mediator mass exclusion limits to date.
Measurement of energy correlators inside jets and determination of the strong coupling
Authors
Aram Hayrapetyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Ang Li,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,Gerrit Patrick van Onsem,Senne van Putte,David Vannerom,Barbara Clerbaux,Aloke Kumar Das,Gilles de Lentdecker,Laurent Favart,Paraskevas Gianneios,Dmytro Hohov,Johny Jaramillo,Ali Khalilzadeh,Fakhri Alam Khan,Kyeongpil Lee,Mostafa Mahdavikhorrami,Andrea Malara,Santiago Paredes,Laurent Thomas,Max Vanden Bemden,Pascal Vanlaer,Maarten de Coen,Didar Dobur,Yanwen Hong,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Kevin Mota Amarilo,César Rendón,Amrutha Samalan,Kirill Skovpen,Niels van den Bossche,Jan van der Linden,Liam Wezenbeek,Anna Benecke,Agni Bethani,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,Raphael Gomes de Souza,Jordan Martins,Clemencia Mora Herrera,Luiz Mundim,Helio Nogima,Joao Pedro Pinheiro,Alberto Santoro,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,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Elton Shumka,Sumit Keshri,Shalini Thakur,Tongguang Cheng,Tahir Javaid,Li Yuan,Zhen Hu,Jinfeng Liu,Kai Yi,Guo-Ming Chen,He-Sheng Chen,Mingshui Chen,Fabio Iemmi,Chun-Hua Jiang,Anshul Kapoor,Hongbo Liao,Zhenan Liu,Ramkrishna Sharma,Jia-Ning Song,Junquan Tao
Published Date
2024/2/27
Energy correlators that describe energy-weighted distances between two or three particles in a jet are measured using an event sample of = 13 TeV proton-proton collisions collected by the CMS experiment and corresponding to an integrated luminosity of 36.3 fb. The measured distributions reveal two key features of the strong interaction: confinement and asymptotic freedom. By comparing the ratio of the two measured distributions with theoretical calculations that resum collinear emissions at approximate next-to-next-to-leading logarithmic accuracy matched to a next-to-leading order calculation, the strong coupling is determined at the Z boson mass: = 0.1229, the most precise value obtained using jet substructure observables.
Search for a heavy neutral lepton that mixes predominantly with the tau neutrino
Authors
M Nayak,S Dey,A Soffer,I Adachi,H Aihara,S Al Said,DM Asner,H Atmacan,R Ayad,V Babu,Sw Banerjee,M Bauer,P Behera,K Belous,M Bessner,V Bhardwaj,B Bhuyan,T Bilka,D Biswas,A Bobrov,D Bodrov,M Bračko,P Branchini,TE Browder,A Budano,M Campajola,D Červenkov,M-C Chang,BG Cheon,HE Cho,K Cho,Y Choi,S Choudhury,S Das,G De Nardo,G De Pietro,R Dhamija,F Di Capua,J Dingfelder,Z Doležal,TV Dong,S Dubey,P Ecker,D Epifanov,T Ferber,O Fogel,BG Fulsom,V Gaur,A Giri,P Goldenzweig,E Graziani,K Gudkova,C Hadjivasiliou,S Halder,T Hara,K Hayasaka,H Hayashii,S Hazra,MT Hedges,D Herrmann,W-S Hou,C-L Hsu,K Inami,A Ishikawa,R Itoh,M Iwasaki,WW Jacobs,S Jia,Y Jin,T Kawasaki,C Kiesling,CH Kim,DY Kim,K Kinoshita,P Kodyš,A Korobov,S Korpar,P Križan,P Krokovny,T Kuhr,D Kumar,R Kumar,A Kuzmin,Y-J Kwon,Y-T Lai,T Lam,JS Lange,M Laurenza,SC Lee,LK Li,YB Li,L Li Gioi,J Libby,K Lieret,Y-R Lin,D Liventsev,T Luo,Y Ma,M Masuda,SK Maurya,F Meier,M Merola,K Miyabayashi,R Mizuk,GB Mohanty,R Mussa,I Nakamura,M Nakao,Z Natkaniec,A Natochii,L Nayak,S Nishida,S Ogawa,H Ono,P Oskin,P Pakhlov,G Pakhlova,S Pardi,H Park,J Park,S-H Park,A Passeri,S Patra,S Paul,R Pestotnik,LE Piilonen,T Podobnik,E Prencipe,MT Prim,M Röhrken,A Rostomyan,N Rout,G Russo,S Sandilya,L Santelj,V Savinov,G Schnell,C Schwanda,Y Seino,K Senyo,ME Sevior,W Shan,C Sharma,CP Shen,J-G Shiu,JB Singh,A Sokolov,E Solovieva,M Starič,M Sumihama
Journal
arXiv preprint arXiv:2402.02580
Published Date
2024/2/4
We report a search for a heavy neutral lepton (HNL) that mixes predominantly with . The search utilizes data collected with the Belle detector at the KEKB asymmetric energy collider. The data sample was collected at and just below the center-of-mass energies of the and resonances and has an integrated luminosity of , corresponding to events. We search for production of the HNL (denoted ) in the decay followed by its decay via . The search focuses on the parameter-space region in which the HNL is long lived, so that the originate from a common vertex that is significantly displaced from the collision point of the KEKB beams. Consistent with the expected background yield, one event is observed in the data sample after application of all the event-selection criteria. We report limits on the mixing parameter of the HNL with the neutrino as a function of the HNL mass.
Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum 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,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,Alexander Morton,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,M Vanden Bemden,C Vander Velde,P Vanlaer,M De Coen,D Dobur,J Knolle,L Lambrecht,G Mestdach,C Rendón,A Samalan,K Skovpen,N Van Den Bossche,L Wezenbeek,A Benecke,G Bruno,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,T Menezes De Oliveira,A Moraes,P Rebello Teles,M Soeiro,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,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 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,JN Song,J Tao
Journal
Physical Review Letters
Published Date
2024/1/23
A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138 fb− 1 of proton-proton (p p) collision data at a center-of-mass energy of 13 TeV produced by the LHC in 2016–2018. No significant excess over the predicted backgrounds is observed. Upper limits are set on the product of the inelastic dark matter production cross section σ (p p→ A′→ χ 1 χ 2) and the decay branching fraction B (χ 2→ χ 1 μ+ μ−), where A′ is a dark photon and χ 1 and χ 2 are states in the dark sector with near mass degeneracy. This is the first dedicated collider search for inelastic dark matter.
Measurement of branching fractions and direct asymmetries for and decays at Belle II
Authors
I Adachi,L Aggarwal,H Ahmed,H Aihara,N Akopov,A Aloisio,N Anh Ky,DM Asner,H Atmacan,T Aushev,V Aushev,M Aversano,V Babu,H Bae,S Bahinipati,P Bambade,Sw Banerjee,S Bansal,M Barrett,J Baudot,M Bauer,A Baur,A Beaubien,F Becherer,J Becker,PK Behera,JV Bennett,FU Bernlochner,V Bertacchi,M Bertemes,E Bertholet,M Bessner,S Bettarini,B Bhuyan,F Bianchi,T Bilka,D Biswas,A Bobrov,D Bodrov,A Bolz,A Bondar,J Borah,A Bozek,M Bračko,P Branchini,RA Briere,TE Browder,A Budano,S Bussino,M Campajola,L Cao,G Casarosa,C Cecchi,J Cerasoli,M-C Chang,P Chang,R Cheaib,P Cheema,V Chekelian,C Chen,BG Cheon,K Chilikin,K Chirapatpimol,H-E Cho,K Cho,S-J Cho,S-K Choi,S Choudhury,J Cochran,L Corona,LM Cremaldi,S Das,F Dattola,E De La Cruz-Burelo,SA De La Motte,G De Nardo,M De Nuccio,G De Pietro,R De Sangro,M Destefanis,S Dey,A De Yta-Hernandez,R Dhamija,A Di Canto,F Di Capua,J Dingfelder,Z Doležal,I Domínguez Jiménez,TV Dong,M Dorigo,K Dort,D Dossett,S Dreyer,S Dubey,G Dujany,P Ecker,M Eliachevitch,D Epifanov,P Feichtinger,T Ferber,D Ferlewicz,T Fillinger,C Finck,G Finocchiaro,A Fodor,F Forti,A Frey,BG Fulsom,A Gabrielli,E Ganiev,M Garcia-Hernandez,R Garg,A Garmash,G Gaudino,V Gaur,A Gaz,A Gellrich,G Ghevondyan,D Ghosh,H Ghumaryan,G Giakoustidis,R Giordano,A Giri,A Glazov,B Gobbo,R Godang,O Gogota,P Goldenzweig,P Grace,W Gradl,T Grammatico,S Granderath,E Graziani,D Greenwald,Z Gruberová,T Gu,Y Guan,K Gudkova,S Halder,Y Han,T Hara,K Hayasaka,H Hayashii,S Hazra,C Hearty,MT Hedges,A Heidelbach,I Heredia De La Cruz,M Hernández Villanueva,A Hershenhorn
Journal
Physical Review D
Published Date
2024/1/4
We report measurements of the branching fractions and direct C P asymmetries of the decays B 0→ K+ π−, B+→ K+ π 0, B+→ K 0 π+, and B 0→ K 0 π 0, and use these for testing the standard model through an isospin-based sum rule. In addition, we measure the branching fraction and direct C P asymmetry of the decay B+→ π+ π 0 and the branching fraction of the decay B 0→ π+ π−. The data are collected with the b elle II detector from e+ e− collisions at the ϒ (4 S) resonance produced by the SuperKEKB asymmetric-energy collider and contain 387× 10 6 bottom-antibottom meson pairs. Signal yields are determined in two-dimensional fits to background-discriminating variables, and range from 500 to 3900 decays, depending on the channel. We obtain− 0.03±0.13±0.04 for the sum rule in agreement with the standard model expectation of zero and with a precision comparable to the best existing determinations.
Search for the decay at Belle experiment
Authors
D Kumar,B Bhuyan,H Aihara,DM Asner,T Aushev,R Ayad,V Babu,Sw Banerjee,M Bauer,P Behera,K Belous,J Bennett,M Bessner,T Bilka,D Biswas,A Bobrov,D Bodrov,J Borah,M Bračko,P Branchini,TE Browder,A Budano,M Campajola,D Červenkov,M-C Chang,C Chen,BG Cheon,K Chilikin,K Cho,S-K Choi,Y Choi,S Choudhury,S Das,N Dash,G De Nardo,G De Pietro,R Dhamija,Z Doležal,TV Dong,P Ecker,D Epifanov,D Ferlewicz,BG Fulsom,R Garg,V Gaur,A Garmash,A Giri,P Goldenzweig,E Graziani,K Gudkova,C Hadjivasiliou,K Hayasaka,H Hayashii,S Hazra,D Herrmann,W-S Hou,C-L Hsu,N Ipsita,A Ishikawa,R Itoh,M Iwasaki,WW Jacobs,S Jia,Y Jin,D Kalita,AB Kaliyar,C Kiesling,CH Kim,DY Kim,K-H Kim,Y-K Kim,K Kinoshita,P Kodyš,A Korobov,S Korpar,E Kovalenko,P Križan,P Krokovny,T Kuhr,R Kumar,K Kumara,T Kumita,A Kuzmin,Y-J Kwon,T Lam,SC Lee,D Levit,LK Li,Y Li,YB Li,L Li Gioi,J Libby,D Liventsev,Y Ma,M Masuda,T Matsuda,D Matvienko,SK Maurya,F Meier,M Merola,F Metzner,K Miyabayashi,R Mizuk,GB Mohanty,R Mussa,M Nakao,Z Natkaniec,A Natochii,L Nayak,M Nayak,S Nishida,S Ogawa,H Ono,P Pakhlov,G Pakhlova,S Pardi,J Park,S-H Park,A Passeri,S Paul,TK Pedlar,R Pestotnik,LE Piilonen,T Podobnik,MT Prim,N Rout,G Russo,S Sandilya,L Santelj,V Savinov,G Schnell,C Schwanda,Y Seino,ME Sevior,W Shan,C Sharma,CP Shen,J-G Shiu,JB Singh,E Solovieva,M Starič,ZS Stottler,M Sumihama,M Takizawa,K Tanida,F Tenchini,R Tiwary,T Uglov,Y Unno,S Uno
Journal
Physical Review D
Published Date
2024/2/16
We have analyzed 121.4 fb− 1 of data collected at the ϒ (5 S) resonance by the Belle experiment using the KEKB asymmetric-energy e+ e− collider to search for the decay B s 0→ J/ψ π 0. We observe no signal and report an upper limit on the branching fraction B (B s 0→ J/ψ π 0) of 1.21× 10− 5 at 90% confidence level. This result is the most stringent, improving the previous bound by 2 orders of magnitude.
Search for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at 13 TeV
Authors
Aram Hayrapetyan,Robin Erbacher,Camilo Andres Carrillo Montoya,Dave M Newbold,Wagner Carvalho,Nimmitha Karunarathna,Maciej Górski,Manuel Sommerhalder,Nukulsinh Parmar,Balazs Ujvari,Ayse Polatoz,Anna Tsatsos,Elton Shumka,Alfredo Gurrola,Anne-Marie Magnan,Roumyana Hadjiiska,Ian Laflotte,Ian Mcalister,Willard Johns,Ludivine Ceard,Pierre Van Hove,Mohammad Alhusseini,Alberto Orso Maria Iorio,Ulrich Heintz,Giuseppe Latino,Andrew Hart,Robin Hofsaess,Federico Vazzoler,Sinan Sagir,Changgi Huh,Georgios Tsipolitis,Joseph Lynn Dulemba,Sanghyun Ko,Dylan Apparu,Soureek Mitra,Sergei Slabospitskii,Shamik Ghosh,Michael Tytgat,Robert Schöfbeck,Julia Vazquez Escobar,James Hirschauer,Andreas Nürnberg,Ho Fung Tsoi,Reza Goldouzian,Victor Golovtcov,Ram Krishna Dewanjee,Chiara Rovelli,Eliza Melo Da Costa,Daniele Fasanella,Polina Simkina,Vipin Bhatnagar,Zhen Hu,Konstantin Sharko,Hans Reithler,Austin Baty,Soumya Mukherjee,Tomas Lindén,Jonathon Langford,Graham Wilson,William Tabb,Elena Popova,Furkan Dolek,Attilio Santocchia,Sergio Sánchez Navas,Manuel Calderon De La Barca Sanchez,Wolfram Dietrich Zeuner,Manuel Rodriguez,Jithin Madhusudanan Sreekala,Raphael Granier de Cassagnac,Georgios Daskalakis,Axel Buchot Perraguin,Andrés Abreu,Ernesto Migliore,Alexander Zotz,Tilman Rohe,Paul Schütze,Leonidas Paizanos,Salvatore Nuzzo,Grace Cummings,Yasser Assran,Florian Joel J Bury,Gurkan Karaman,Henri Petrow,Jonathan Guiang,Kai-Feng Chen,Matthew Nguyen,Liam Brennan,Irene Dutta,Giorgio Apollinari,Michael Oshiro,Damir Lelas,Gillian Kopp,Michel Della Negra,Amitabh Lath,Di Wang,Daria Selivanova,Klitos Savva,Alexander Pauls,Martijn Mulders,Fabrizio Palla,Nikolas Pervan,Lorenzo Uplegger,Marina Kolosova,Sunil Bansal,Roberval Walsh,Hugo Becerril Gonzalez,Vladimir Makarenko,Christopher Palmer,Kristan Allan Hahn,Tao Huang,Olmo Cerri,George Stephans,Siqi Yuan,Kimmo Tuomas Samuli Kallonen,Olena Karacheban,Alicia Calderon,Tyler Lam,Kevin Black,Thomas Kress,Georgia Karapostoli,Samuel Lascio,Anusree Vijay,Andrea Claudio Maria Bulla,Berkan Kaynak,Wei Wei,Achille Petrilli,Diogo Bastos,Bhargav Madhusudan Joshi,Abhishikth Mallampalli,Chenfeng Lu,Maria Cepeda,Mauricio Thiel,J William Gary,Dylan Blend,Cécile Caillol,Yannik Rath,Krisztina Márton,Nihar Ranjan Saha,Orgho Neogi,Mohammed Mahmoud,Peicho Petkov,John Rotter,Davide Piccolo,Emanuel Pfeffer,Florian Rehm,Pawel de Barbaro,Vaia Papadimitriou,Robert White,Zhengchen Liang,Nural Akchurin
Journal
arXiv preprint arXiv:2403.00100
Published Date
2024/3/1
A search for heavy neutral leptons (HNLs) of Majorana or Dirac type using protonproton collision data at√ s= 13 TeV is presented. The data were collected by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 138 fb− 1. Events with three charged leptons (electrons, muons, and hadronically decaying tau leptons) are selected, corresponding to HNL production in association with a charged lepton and decay of the HNL to two charged leptons and a standard model (SM) neutrino. The search is performed for HNL masses between 10 GeV and 1.5 TeV. No evidence for an HNL signal is observed in data. Upper limits at 95% confidence level are found for the squared coupling strength of the HNL to SM neutrinos, considering exclusive coupling of the HNL to a single SM neutrino generation, for both Majorana and Dirac HNLs. The limits exceed previously achieved experimental constraints for a wide range of HNL masses, and the limits on tau neutrino coupling scenarios with HNL masses above the W boson mass are presented for the first time.
Search for long-lived heavy neutrinos in the decays of B mesons produced 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,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Ang Li,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,Nordin Breugelmans,Jorgen d'Hondt,Soumya Dansana,Alexandre de Moor,Martin Delcourt,Felix Heyen,Steven Lowette,Inna Makarenko,Denise Müller,Stefaan Tavernier,Michael Tytgat,Gerrit Patrick van Onsem,Senne van Putte,David Vannerom,Barbara Clerbaux,Aloke Kumar Das,Gilles de Lentdecker,Hugues Evard,Laurent Favart,Paraskevas Gianneios,Dmytro Hohov,Johny Jaramillo,Ali Khalilzadeh,Fakhri Alam Khan,Kyeongpil Lee,Mostafa Mahdavikhorrami,Andrea Malara,Santiago Paredes,Laurent Thomas,Max Vanden Bemden,Pascal Vanlaer,Maarten de Coen,Didar Dobur,Gul Gokbulut,Yanwen Hong,Joscha Knolle,Luka Lambrecht,David Marckx,Gianny Mestdach,Kevin Mota Amarilo,César Rendón,Amrutha Samalan,Kirill Skovpen,Niels van den Bossche,Jan van der Linden,Liam Wezenbeek,Anna Benecke,Agni Bethani,Giacomo Bruno,Claudio Caputo,Jerome de Favereau de Jeneret,Christophe Delaere,Izzeddin Suat Donertas,Andrea Giammanco,Ahmet Oguz Guzel,Sandhya Jain,Vincent Lemaitre,Jindrich Lidrych,Paola Mastrapasqua,Tu Thong Tran,Sébastien Wertz,Gilvan Alves,Eduardo Coelho,Carsten Hensel,Thales Menezes de Oliveira,Arthur Moraes,Patricia Rebello Teles,Mariana Soeiro,Antonio Vilela Pereira,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,Raphael Gomes de Souza,Matheus Macedo,Jordan Martins,Clemencia Mora Herrera,Luiz Mundim,Helio Nogima,Joao Pedro Pinheiro,Alberto Santoro,Andre Sznajder,Mauricio Thiel,Cesar Augusto Bernardes,Luigi Calligaris,Thiago Tomei,Eduardo de Moraes Gregores,Isabela Maietto Silverio,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,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Elton Shumka,Sumit Keshri,Shalini Thakur,Tongguang Cheng,Tahir Javaid,Li Yuan,Zhen Hu,Zhengchen Liang,Jinfeng Liu,Kai Yi,Guo-Ming Chen,He-Sheng Chen,Mingshui Chen,Fabio Iemmi,Chun-Hua Jiang,Anshul Kapoor
Journal
arXiv preprint arXiv:2403.04584
Published Date
2024/3/21
A search for long-lived heavy neutrinos (N) in the decays of \PB mesons produced in proton-proton collisions at = 13 TeV is presented. The data sample corresponds to an integrated luminosity of 41.6 fb collected in 2018 by the CMS experiment at the CERN LHC, using a dedicated data stream that enhances the number of recorded events containing B mesons. The search probes heavy neutrinos with masses in the range 1 3 GeV and decay lengths in the range 10 10 mm, where is the N proper mean lifetime. Signal events are defined by the signature B NX; N , where the leptons and can be either a muon or an electron, provided that at least one of them is a muon. The hadronic recoil system, X, is treated inclusively and is not reconstructed. No significant excess of events over the standard model background is observed in any of the invariant mass distributions. Limits at 95% confidence level on the sum of the squares of the mixing amplitudes between heavy and light neutrinos, , and on are obtained in different mixing scenarios for both Majorana and Dirac-like N particles. The most stringent upper limit 2.010 is obtained at = 1.95 GeV for the Majorana case where N mixes exclusively with muon neutrinos. The limits on for masses 1 1.7 GeV are the most stringent from a collider experiment to date.
Search for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at = 13 TeV
Authors
Aram Hayrapetyan
Published Date
2024/2/24
A search for the production of long-lived particles in proton-proton collisions at a center-of-mass energy of 13 TeV at the CERN LHC is presented. The search is based on data collected by the CMS experiment in 2016-2018, corresponding to a total integrated luminosity of 137 fb. This search is designed to be sensitive to long-lived particles with mean proper decay lengths between 0.1 and 1000 m, whose decay products produce a final state with at least one displaced vertex and missing transverse momentum. A machine learning algorithm, which improves the background rejection power by more than an order of magnitude, is applied to improve the sensitivity. The observation is consistent with the standard model background prediction, and the results are used to constrain split supersymmetry (SUSY) and gauge-mediated SUSY breaking models with different gluino mean proper decay lengths and masses. This search is the first CMS search that shows sensitivity to hadronically decaying long-lived particles from signals with mass differences between the gluino and neutralino below 100 GeV. It sets the most stringent limits to date for split-SUSY models and gauge-mediated SUSY breaking models with gluino proper decay length less than 6 m.
Synthesis, structural characterization, solid-state structures, and DNA binding studies of pseudo octahedral mercury (II)-N-heterocyclic carbene (NHC) complex
Authors
Pooja Das,Priyanka Sahu,Prafulla K Behera,Jasmine Sultana,Saptak Banerjee,Swapan K Chandra,Joydev Dinda
Journal
Inorganica Chimica Acta
Published Date
2024/2/14
This work describes the easy synthetic approaches, structural features, and Hirshfeld surface studies of mercury(II)-N-heterocyclic carbene (NHC) complexes. The proligands 2-(pyridylmethyl)imidazo[1,5-a]pyridin-4-yliumtetrafluoroborate(1.HBF4) and 1-methyl-2-(pyridylmethyl)imidazo[1,5-a]pyridin-4-ylium tetrafluoroborate (2.HBF4) were synthesized by formylative cyclization of corresponding Schiff bases. Hg(II)–NHC complexes [Hg(1)2][BF4]2(1a) and [Hg(2)2][BF4]2(2a) were synthesized using Hg(OAc)2 under refluxing condition in acetonitrile. The compounds were characterized using various spectroscopic techniques. The UV–Vis spectra show the red shift in comparison to proligands in the case of high energy region support the formation of Hg(II)–NHC complexes. Finally, the geometry of 1a and 2a were elucidated by single crystal X-ray diffraction analyses, at least in one case (2a) leading to pseudo …
Hybrid heuristic driving training-rider optimization algorithm for QoS-aware multicast communication system in MANET
Authors
Sanjaya Kumar Sarangi,Arabinda Nanda,Rasmita Lenka,Prafulla Kumar Behera
Journal
Australian Journal of Electrical and Electronics Engineering
Published Date
2024/2/3
Mobile Ad hoc Network (MANET) is broadly applicable in various sectors within a short amount of time, which is connected to mobile developments. However, the communication in the MANET faces several issues like synchronization, managing power, resources, and routing management. Often, finding the optimal path in the MANET becomes complicated in the existing approaches. In this work, the latest QoS-assisted multiple-cast communication system in MANET is presented using hybridized approaches for better communication over the MANET domain. Especially, an Exploitation-assisted Driving Training-Rider Optimization (EDT-RO) model is suggested for the multicast routing in MANET. The developed EDT-RO algorithm optimizes the paths for communication in MANET, where the network considers more than two receivers. The proposed EDT-RO-based multicast routing algorithm aims to attain the …
Study of charm hadronization with prompt baryons in proton-proton and lead-lead collisions at = 5.02 TeV
Authors
A Tumasyan,W Adam,JW Andrejkovic,T Bergauer,S Chatterjee,K Damanakis,M Dragicevic,A Escalante Del Valle,PS Hussain,M Jeitler,N Krammer,L Lechner,D Liko,I Mikulec,P Paulitsch,J Schieck,R Schöfbeck,D Schwarz,M Sonawane,S Templ,W Waltenberger,C-E Wulz,MR Darwish,T Janssen,T Kello,P Van Mechelen,ES Bols,J D’Hondt,A De Moor,M Delcourt,H El Faham,S Lowette,A Morton,D Müller,AR Sahasransu,S Tavernier,W Van Doninck,S Van Putte,D Vannerom,B Clerbaux,S Dansana,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 Keshri,S Thakur,T Cheng,Q Guo,T Javaid,M Mittal,L Yuan,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
2024/1
The production of prompt baryons is measured via the exclusive decay channel at a center-of-mass energy per nucleon pair of 5.02 TeV, using proton-proton (pp) and lead-lead (PbPb) collision data collected by the CMS experiment at the CERN LHC. The pp and PbPb data were obtained in 2017 and 2018 with integrated luminosities of 252 and 0.607 nb− 1, respectively. The measurements are performed within the rapidity interval| y|< 1 with transverse momentum (p T) ranges of 3–30 and 6–40 GeV/c for pp and PbPb collisions, respectively. Compared to the yields in pp collisions scaled by the expected number of nucleon-nucleon interactions, the observed yields of with p T> 10 GeV/c are strongly suppressed in PbPb collisions. The level of suppression depends significantly on the collision centrality. The/D 0 production ratio is similar in PbPb and pp collisions at p T> 10 GeV/c, suggesting that …
Extracting the speed of sound in the strongly interacting matter created in ultrarelativistic lead-lead collisions at the LHC
Authors
Aram Hayrapetyan,Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Konstantinos Damanakis,Marko Dragicevic,Priya Sajid Hussain,Manfred Jeitler,Natascha Krammer,Ang Li,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,Gerrit Patrick van Onsem,Senne van Putte,David Vannerom,Barbara Clerbaux,Aloke Kumar Das,Gilles de Lentdecker,Laurent Favart,Paraskevas Gianneios,Dmytro Hohov,Johny Jaramillo,Ali Khalilzadeh,Kyeongpil Lee,Mostafa Mahdavikhorrami,Andrea Malara,Santiago Paredes,Nicolas Postiau,Laurent Thomas,Max Vanden Bemden,Pascal Vanlaer,Maarten de Coen,Didar Dobur,Yanwen Hong,Joscha Knolle,Luka Lambrecht,Gianny Mestdach,Kevin Mota Amarilo,César Rendón,Amrutha Samalan,Kirill Skovpen,Niels van den Bossche,Jan van der Linden,Liam Wezenbeek,Anna Benecke,Agni Bethani,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,Raphael Gomes de Souza,Jordan Martins,Clemencia Mora Herrera,Luiz Mundim,Helio Nogima,Joao Pedro Pinheiro,Alberto Santoro,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,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Elton Shumka,Sumit Keshri,Shalini Thakur,Tongguang Cheng,Tahir Javaid,Li Yuan,Zhen Hu,Jinfeng Liu,Kai Yi,Guo-Ming Chen,He-Sheng Chen,Mingshui Chen,Fabio Iemmi,Chun-Hua Jiang,Anshul Kapoor,Hongbo Liao,Zhenan Liu,Ramkrishna Sharma,Jia-Ning Song,Junquan Tao
Published Date
2024/1/17
Ultrarelativistic nuclear collisions create a strongly interacting state of hot and dense quark-gluon matter that exhibits a remarkable collective flow behavior with minimal viscous dissipation. To gain deeper insights into its intrinsic nature and fundamental degrees of freedom, we extracted the speed of sound in this medium created using lead-lead (PbPb) collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The data were recorded by the CMS experiment at the CERN LHC and correspond to an integrated luminosity of 0.607 nb. The measurement is performed by studying the multiplicity dependence of the average transverse momentum of charged particles emitted in head-on PbPb collisions. Our findings reveal that the speed of sound in this matter is nearly half the speed of light, with a squared value of 0.241 0.002 (stat) 0.016 (syst) in natural units. The effective medium temperature, estimated using the mean transverse momentum, is 219 8 (syst) MeV. The measured squared speed of sound at this temperature aligns precisely with predictions from lattice quantum chromodynamic (QCD) calculations. This result provides a stringent constraint on the equation of state of the created medium and direct evidence for a deconfined QCD phase being attained in relativistic nuclear collisions.
Search for dark matter particles in W+W− events with transverse momentum imbalance in proton-proton collisions at = 13 TeV
Authors
A Hayrapetyan,A Tumasyan,W Adam,JW Andrejkovic,T Bergauer,S Chatterjee,K Damanakis,M Dragicevic,A Escalante Del Valle,PS Hussain,M Jeitler,N Krammer,D Liko,I Mikulec,J Schieck,R Schöfbeck,D Schwarz,M Sonawane,S Templ,W Waltenberger,C-E Wulz,MR Darwish,T Janssen,P Van Mechelen,ES Bols,J D’Hondt,S Dansana,A De Moor,M Delcourt,H El Faham,S Lowette,I Makarenko,D Müller,AR Sahasransu,S Tavernier,M Tytgat,S Van Putte,D Vannerom,B Clerbaux,G De Lentdecker,L Favart,D Hohov,J Jaramillo,A Khalilzadeh,K Lee,M Mahdavikhorrami,A Malara,S Paredes,L Pétré,N Postiau,L Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,M De Coen,D Dobur,Y Hong,J Knolle,L Lambrecht,G Mestdach,C Rendón,A Samalan,K Skovpen,N Van Den Bossche,L Wezenbeek,A Benecke,G Bruno,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,T Menezes De Oliveira,A Moraes,P Rebello Teles,M Soeiro,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,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,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,Z-A Liu,F Monti,R Sharma,JN Song,J Tao
Journal
Journal of High Energy Physics
Published Date
2024/3
A search for dark matter particles is performed using events with a pair of W bosons and large missing transverse momentum. Candidate events are selected by requiring one or two leptons (ℓ= electrons or muons). The analysis is based on proton-proton collision data collected at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC and corresponding to an integrated luminosity of 138 fb− 1. No significant excess over the expected standard model background is observed in the ℓνqq and 2ℓ2ν final states of the W+ W− boson pair. Limits are set on dark matter production in the context of a simplified dark Higgs model, with a dark Higgs boson mass above the W+ W− mass threshold. The dark matter phase space is probed in the mass range 100–300 GeV, extending the scope of previous searches. Current exclusion limits are improved in the range of dark Higgs masses from 160 to 250 GeV, for a dark …
Prof Prafulla Kumar Behera FAQs
What is Prof Prafulla Kumar Behera's h-index at Indian Institute of Technology Madras?
The h-index of Prof Prafulla Kumar Behera has been 128 since 2020 and 205 in total.
What are Prof Prafulla Kumar Behera's top articles?
The articles with the titles of
Measurement of the production cross section for a W boson in association with a charm quark in proton–proton collisions at [... formula...]
Search for a dark leptophilic scalar produced in association with pair in annihilation at center-of-mass energies near 10.58 GeV
Observation of the J/K decay
Search for a scalar or pseudoscalar dilepton resonance produced in association with a massive vector boson or top quark-antiquark pair in multilepton events at $\sqrt {s} $= 13 TeV
BSMACRN: Design of an efficient Blockchain-based Security Model for improving Attack-resilience of Cognitive Radio Ad-hoc Networks
Measurement of asymmetries in decays at Belle II
Search for new physics with emerging jets in proton-proton collisions at = 13 TeV
Measurement of energy correlators inside jets and determination of the strong coupling
...
are the top articles of Prof Prafulla Kumar Behera at Indian Institute of Technology Madras.
What are Prof Prafulla Kumar Behera's research interests?
The research interests of Prof Prafulla Kumar Behera are: Experimental High Energy Physics
What is Prof Prafulla Kumar Behera's total number of citations?
Prof Prafulla Kumar Behera has 215,845 citations in total.
Useful Links