Measurement of the CP-violating phase ϕs in Bs0→J/ψϕ decays in ATLAS at 13 TeV

ATLAS Collaboration

doi:10.1140/epjc/s10052-021-09011-0

Measurement of the CP-violating phase ϕ_s in Bs0→J/ψϕ decays in ATLAS at 13 TeV

ATLAS Collaboration

Universidad Nacional de Colombia
University Politehnica of Bucharest
iThemba Laboratory for Accelerator Based Sciences
Department of Physics
University of South Africa
Moroccan Foundation for Advanced Science Innovation and Research (MAScIR)
Dep Física and CEFITEC of Faculdade de Ciências e Tecnologia
NOVA University Lisbon
University of Lisbon
Department of Physics
Universidad Andrés Bello
Instituto de Alta Investigación
Universidad de Tarapacá
CERN
Aix-Marseille Université
University of Oklahoma
University of Massachusetts
Azerbaijan National Academy of Sciences
National Institute for Nuclear Physics
University of Pavia
University of Göttingen
Royal Holloway University of London
University of Toronto
University of Copenhagen
University of Sussex
Tel Aviv University
Technion-Israel Institute of Technology
Argonne National Laboratory
Abdus Salam International Centre for Theoretical Physics
King's College London
The University of Tokyo
Johannes Gutenberg University Mainz
Université Paris-Saclay
AGH University of Science and Technology
Northern Illinois University
Ludwig Maximilian University of Munich
Bogazici University
Istanbul University
University of Geneva
Rutherford Appleton Laboratory
University of California at Santa Cruz
Université Clermont Auvergne
Radboud University Nijmegen
Alexandru Ioan Cuza University of Iaşi
Laboratório de Instrumentação e Física Experimental de Partículas
University of Granada
Universidad Autónoma de Madrid
Joint Institute for Nuclear Research
McGill University
Lawrence Berkeley National Laboratory
University of Rome Tor Vergata
Kyoto University
Lund University
RAS - P.N. Lebedev Physics Institute
University of Bologna
University of Victoria BC
Council for Scientific and Industrial Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
Humboldt University of Berlin
National Technical University of Athens
University of Amsterdam
Czech Technical University in Prague
The University of Chicago
University of Washington
University of Oregon
University of Birmingham
University of Naples Federico II
Universidad Nacional de La Plata
University of Glasgow
Universidad Autónoma de Madrid
University of Valencia
Universidade Federal do Rio de Janeiro
University of Oxford
Brandeis University
University of Michigan, Ann Arbor
German Electron Synchrotron
Iowa State University
University of Sheffield
University of Texas at Austin
Heidelberg University
University of Bern
University of Milan
Columbia University
RAS - Budker Institute of Nuclear Physics
Novosibirsk State University
University of California at Irvine
High Energy Accelerator Research Organization, Tsukuba
Michigan State University
Duke University
University of Montreal
University of Iowa
Queen Mary University of London
Alikhanov Institute for Theoretical and Experimental Physics
Harvard University
Uppsala University
United States Department of Energy
Comenius University
University of Cape Town
University of Illinois
University of Siegen
University of Science and Technology of China
CAS - Institute of High Energy Physics
York University Toronto
TRIUMF
University of Salento
Stockholm University
Oskar Klein Centre
University of Rome La Sapienza
Cracow
Simon Fraser University
Yale University
University of Texas at Arlington
University of Sydney
Weizmann Institute of Science
University of Bonn
University of Wisconsin-Madison
University of Louisville
University of Wuppertal
University of Melbourne
University of Genoa
Max Planck Institute for Physics (Werner Heisenberg Institute)
SLAC National Accelerator Laboratory
Shanghai Jiao Tong University
Russian Research Centre Kurchatov Institute
Lancaster University
An-Najah National University
Mohammed V University in Rabat
University of Cambridge
California State University Long Beach
California State University Fresno
Sorbonne Université
Tufts University
University of Freiburg
University of Fribourg
Gaziantep University
Bahcesehir University
Stony Brook University
University of Innsbruck
University College London
Carleton University
National and Kapodistrian University of Athens
Moscow Engineering Physics Institute
University of Hassan II Casablanca
Université Grenoble Alpes
University of Arizona
University of Manchester
University of Pittsburgh
University of Pisa
Technische Universität Dresden
University of Oslo
Boston University
Institute for High Energy Physics
Lomonosov Moscow State University
University of Liverpool
Institute for High Energy Physics
Ohio State University
University of Johannesburg
Universidad Técnica Federico Santa Maria
Slovak Academy of Sciences
University of Bergen
Oklahoma State University
Academia Sinica - Institute of Physics
Justus Liebig University Giessen
Ankara University
Indiana University Bloomington
Istanbul Bilgi University
University of Calabria
Charles University
Autonomous University of Barcelona
University of Minho
Roma Tre University
Palacký University Olomouc
Universidade Federal de Juiz de Fora
Tbilisi State University
Moscow Institute of Physics and Technology
University of Pennsylvania School of Arts and Sciences
Nanjing University
Tsinghua University
The Collaborative Innovation Center of Quantum Matter (CICQM)
Kobe University
Chinese University of Hong Kong
National Tsing Hua University
Aristotle University of Thessaloniki
University of Chinese Academy of Sciences
Czech Academy of Sciences
TU Dortmund University
University of Ljubljana
Ben-Gurion University of the Negev
University of Edinburgh
University of Udine
University of Naples Parthenope
University of British Columbia
Institute of Particle Physics
New York University
Shandong University
Universidad de Buenos Aires
Southern Methodist University
University of Adelaide
Mohamed I University
Pontificia Universidad Católica de Chile
Universidade Federal de São João del-Rei
Universidade de São Paulo
Cadi Ayyad University
Demokritos National Centre for Scientific Research
Peter the Great St. Petersburg Polytechnic University
University of Coimbra
City University of New York
INFN-TIFPA
University of Trento
Tokyo Metropolitan University
Nagasaki Institute of Applied Science
University of Alberta
University of the Aegean
Ibn Tofail University
West University of Timisoara
California State University East Bay
ICREA
University of New Mexico
University of Tsukuba
University of Würzburg
Osaka University
Belarus Academy of Sciences
University of Warwick
Shinshu University
University of the Witwatersrand
Nagoya University
Belarusian State University
Tokyo Institute of Technology
University of Texas at Dallas
SUNY Albany
Georgian National Academy of Sciences
Ilia State University
Stanford University
Waseda University
Kyushu University
Tomsk State University
Ochanomizu University
Manhattan College
University of Belgrade
Istanbul Aydin University
Hellenic Open University
Hong Kong University of Science and Technology
The University of Hong Kong
Universidad Antonio Nariño
KTH Royal Institute of Technology
A. Alikhanian Yerevan Institute of Physics
California State University Sacramento
Hiroshima Institute of Technology
Okayama University
Jagiellonian University in Kraków
Transilvania University of Brasov
National Institute for Research and Development of Isotopic and Molecular Technologies
IN2P3 - Institut National de Physique Nucléaire et de Physique Des Particules
Louisiana Tech University
Sun Yat-Sen University
Bulgarian Academy of Sciences
University of Sharjah
TOBB University of Economics and Technology
University of Hamburg
Kyoto University of Education
Wigner Research Centre for Physics
Giresun Universitesi

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

Abstract

A measurement of the Bs0→J/ψϕ decay parameters using 80.5fb-1 of integrated luminosity collected with the ATLAS detector from 13 Te proton–proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕ_s, the width difference Δ Γ _s between the Bs0 meson mass eigenstates and the average decay width Γ _s. The values measured for the physical parameters are combined with those from 19.2fb-1 of 7 and 8 Te data, leading to the following: ϕs=-0.087±0.036(stat.)±0.021(syst.)radΔΓs=0.0657±0.0043(stat.)±0.0037(syst.)ps-1Γs=0.6703±0.0014(stat.)±0.0018(syst.)ps-1Results for ϕ_s and Δ Γ _s are also presented as 68% confidence level contours in the ϕ_s–Δ Γ _s plane. Furthermore the transversity amplitudes and corresponding strong phases are measured. ϕ_s and Δ Γ _s measurements are in agreement with the Standard Model predictions.

Original language	English
Article number	342
Journal	European Physical Journal C
Volume	81
Issue number	4
DOIs	https://doi.org/10.1140/epjc/s10052-021-09011-0
Publication status	Published - Apr 2021

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

Access to Document

10.1140/epjc/s10052-021-09011-0

Cite this

@article{b860c8c4800f4e33b2b5e8c4a683e857,

title = "Measurement of the CP-violating phase ϕs in Bs0→J/ψϕ decays in ATLAS at 13 TeV",

abstract = "A measurement of the Bs0→J/ψϕ decay parameters using 80.5fb-1 of integrated luminosity collected with the ATLAS detector from 13 Te proton–proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕs, the width difference Δ Γ s between the Bs0 meson mass eigenstates and the average decay width Γ s. The values measured for the physical parameters are combined with those from 19.2fb-1 of 7 and 8 Te data, leading to the following: ϕs=-0.087±0.036(stat.)±0.021(syst.)radΔΓs=0.0657±0.0043(stat.)±0.0037(syst.)ps-1Γs=0.6703±0.0014(stat.)±0.0018(syst.)ps-1Results for ϕs and Δ Γ s are also presented as 68\% confidence level contours in the ϕs–Δ Γ s plane. Furthermore the transversity amplitudes and corresponding strong phases are measured. ϕs and Δ Γ s measurements are in agreement with the Standard Model predictions.",

author = "\{ATLAS Collaboration\} and G. Aad and B. Abbott and Abbott, \{D. C.\} and O. Abdinov and Abud, \{A. Abed\} and K. Abeling and Abhayasinghe, \{D. K.\} and Abidi, \{S. H.\} and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and B. Achkar and S. Adachi and L. Adam and Bourdarios, \{C. Adam\} and L. Adamczyk and L. Adamek and J. Adelman and M. Adersberger and A. Adiguzel and S. Adorni and T. Adye and Affolder, \{A. A.\} and Y. Afik and C. Agapopoulou and Agaras, \{M. N.\} and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and F. Ahmadov and Ahmed, \{W. S.\} and X. Ai and G. Aielli and S. Akatsuka and {\AA}kesson, \{T. P.A.\} and E. Akilli and Akimov, \{A. V.\} and Khoury, \{K. Al\} and Alberghi, \{G. L.\} and J. Albert and Verzini, \{M. J.Alconada\} and S. Alderweireldt and M. Aleksa and Aleksandrov, \{I. N.\} and Connell, \{S. H.\} and N. Govender and L. Truong",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s).",

year = "2021",

month = apr,

doi = "10.1140/epjc/s10052-021-09011-0",

language = "English",

volume = "81",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "4",

}

TY - JOUR

T1 - Measurement of the CP-violating phase ϕs in Bs0→J/ψϕ decays in ATLAS at 13 TeV

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abbott, D. C.

AU - Abdinov, O.

AU - Abud, A. Abed

AU - Abeling, K.

AU - Abhayasinghe, D. K.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Achkar, B.

AU - Adachi, S.

AU - Adam, L.

AU - Bourdarios, C. Adam

AU - Adamczyk, L.

AU - Adamek, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adorni, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agapopoulou, C.

AU - Agaras, M. N.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmadov, F.

AU - Ahmed, W. S.

AU - Ai, X.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Khoury, K. Al

AU - Alberghi, G. L.

AU - Albert, J.

AU - Verzini, M. J.Alconada

AU - Alderweireldt, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Connell, S. H.

AU - Govender, N.

AU - Truong, L.

PY - 2021/4

Y1 - 2021/4

N2 - A measurement of the Bs0→J/ψϕ decay parameters using 80.5fb-1 of integrated luminosity collected with the ATLAS detector from 13 Te proton–proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕs, the width difference Δ Γ s between the Bs0 meson mass eigenstates and the average decay width Γ s. The values measured for the physical parameters are combined with those from 19.2fb-1 of 7 and 8 Te data, leading to the following: ϕs=-0.087±0.036(stat.)±0.021(syst.)radΔΓs=0.0657±0.0043(stat.)±0.0037(syst.)ps-1Γs=0.6703±0.0014(stat.)±0.0018(syst.)ps-1Results for ϕs and Δ Γ s are also presented as 68% confidence level contours in the ϕs–Δ Γ s plane. Furthermore the transversity amplitudes and corresponding strong phases are measured. ϕs and Δ Γ s measurements are in agreement with the Standard Model predictions.

AB - A measurement of the Bs0→J/ψϕ decay parameters using 80.5fb-1 of integrated luminosity collected with the ATLAS detector from 13 Te proton–proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕs, the width difference Δ Γ s between the Bs0 meson mass eigenstates and the average decay width Γ s. The values measured for the physical parameters are combined with those from 19.2fb-1 of 7 and 8 Te data, leading to the following: ϕs=-0.087±0.036(stat.)±0.021(syst.)radΔΓs=0.0657±0.0043(stat.)±0.0037(syst.)ps-1Γs=0.6703±0.0014(stat.)±0.0018(syst.)ps-1Results for ϕs and Δ Γ s are also presented as 68% confidence level contours in the ϕs–Δ Γ s plane. Furthermore the transversity amplitudes and corresponding strong phases are measured. ϕs and Δ Γ s measurements are in agreement with the Standard Model predictions.

UR - https://www.scopus.com/pages/publications/85104776936

U2 - 10.1140/epjc/s10052-021-09011-0

DO - 10.1140/epjc/s10052-021-09011-0

M3 - Article

AN - SCOPUS:85104776936

SN - 1434-6044

VL - 81

JO - European Physical Journal C

JF - European Physical Journal C

IS - 4

M1 - 342

ER -

Measurement of the CP-violating phase ϕ_s in Bs0→J/ψϕ decays in ATLAS at 13 TeV

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this