Resonances and CP violation in Bs                         0and B¯s0→J/ψK+                         K−decays in the mass region above the ϕ(1020)

The LHCb collaboration

doi:10.1007/JHEP08(2017)037

Resonances and CP violation in B_s ⁰and B¯s0→J/ψ^K+ ^K−decays in the mass region above the ϕ(1020)

The LHCb collaboration

European Organization for Nuclear Research
University Santiago de Compostela
University of Bristol
Clermont-Auvergne University
University of Cincinnati
University of Dortmund
University of Glasgow
Science Park 105
Petersburg Nuclear Physics Institute (PNPI)
Imperial College London
Instituto de Biofisica da UFRJ
INFN
Laboratoire de l'Accélérateur Linéaire
Tsinghua University
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
ENAC-IIC-GEL
Sezione INFN di Ferrara
University of Ferrara
University of Maryland, College Park
University of Manchester
University of Heidelberg
Aix-Marseille Université
Kurchatov Institute
Syracuse University
Sezione di Roma
University of Warwick
University of Barcelona
Pontifícia Universidade Católica do Rio de Janeiro
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Yandex School of Data Analysis
Institute for Theoretical and Experimental Physics
Institute for Nuclear Physics
Agh University of Science and Technology Faculty of Computer Science
National Centre for Nuclear Research (NCBJ)
Université Savoie Mont Blanc
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Centro Brasileiro de Pesquisas Fisicas
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
Universités Paris VI and VII
LNF-INFN
RWTH Aachen University
Moscow State University
University of Zurich
INFN Sezione di Bologna
University of Birmingham
University of Modena and Reggio Emilia
Max-Planck-Institut für Kernphysik
Massachusetts Institute of Technology
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Sezione INFN di Cagliari
University of Liverpool
Universitat Ramon LLull - CSIC
University of Bologna
University of Rome “Tor Vergata”
Sezione di Genova
University of Genoa
University of Edinburgh
Scuola Normale Superiore di Pisa
University of Oxford
University of Cambridge
Universitá di Cagliari
Horia Hulubei National Institute of Physics and Nuclear Engineering
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Sezione INFN di Milano
Kharkov Institute of Physics and Technology
CCLRC Rutherford Appleton Laboratory
Institute for Nuclear Research of the Russian Academy of Sciences
University of Milano
University of Valencia
Universidade Federal Do Triângulo Mineiro (UFTM)
Universität Rostock
University of Chinese Academy of Sciences
Vrije Universiteit Amsterdam
Institute of Nuclear Research, National Academy of Sciences in Ukraine
Kurchatov Institute
University of Padova
Iligan Institute of Technology (IIT)
University College Dublin
Universidad Nacional de Colombia
Hanoi University of Science
ICS/University of Groningen
University of Pisa
University of Rome
Università degli Studi della Basilicata
Wuhan University
University of Urbino Carlo Bo
Central China Normal University

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The decays of B_s ⁰and B¯s0 mesons into the J/ψK⁺K⁻final state are studied in the K⁺K⁻mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕ_s, the decay width, Γ_s, and the width difference between light and heavy mass eigenstates, ΔΓ_s. A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb⁻¹produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕ_s= 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ⁺π⁻and J/ψϕ(1020) final states gives ϕ_s= 1 ± 37 mrad, consistent with the Standard Model prediction.[Figure not available: see fulltext.]

langue originale	Anglais
Numéro d'article	37
journal	Journal of High Energy Physics
Volume	2017
Numéro de publication	8
Les DOIs	https://doi.org/10.1007/JHEP08(2017)037
état	Publié - 1 août 2017

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10.1007/JHEP08(2017)037

Contient cette citation

@article{5c08a2e5e9b9450bbe120c32b4c7e67e,

title = "Resonances and CP violation in Bs 0and B¯s0→J/ψK+ K−decays in the mass region above the ϕ(1020)",

abstract = "The decays of Bs 0and B¯s0 mesons into the J/ψK+K−final state are studied in the K+K−mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕs, the decay width, Γs, and the width difference between light and heavy mass eigenstates, ΔΓs. A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb−1produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕs= 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ+π−and J/ψϕ(1020) final states gives ϕs= 1 ± 37 mrad, consistent with the Standard Model prediction.[Figure not available: see fulltext.]",

keywords = "B physics, CP violation, Hadron-Hadron scattering (experiments), Spectroscopy",

author = "\{The LHCb collaboration\} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and F. Archilli and P. d{\textquoteright}Argent and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, \{J. J.\} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and F. Baryshnikov and M. Baszczyk and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2017, The Author(s).",

year = "2017",

month = aug,

day = "1",

doi = "10.1007/JHEP08(2017)037",

language = "English",

volume = "2017",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

number = "8",

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TY - JOUR

T1 - Resonances and CP violation in Bs 0and B¯s0→J/ψK+ K−decays in the mass region above the ϕ(1020)

AU - The LHCb collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Archilli, F.

AU - d’Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Babuschkin, I.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Baryshnikov, F.

AU - Baszczyk, M.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battista, V.

AU - Bay, A.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2017/8/1

Y1 - 2017/8/1

N2 - The decays of Bs 0and B¯s0 mesons into the J/ψK+K−final state are studied in the K+K−mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕs, the decay width, Γs, and the width difference between light and heavy mass eigenstates, ΔΓs. A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb−1produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕs= 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ+π−and J/ψϕ(1020) final states gives ϕs= 1 ± 37 mrad, consistent with the Standard Model prediction.[Figure not available: see fulltext.]

AB - The decays of Bs 0and B¯s0 mesons into the J/ψK+K−final state are studied in the K+K−mass region above the ϕ(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, ϕs, the decay width, Γs, and the width difference between light and heavy mass eigenstates, ΔΓs. A decay-time dependent amplitude analysis is employed. The data sample corresponds to an integrated luminosity of 3 fb−1produced in 7 and 8 TeV pp collisions at the LHC, collected by the LHCb experiment. The measurement determines ϕs= 119 ± 107 ± 34 mrad. A combination with previous LHCb measurements using similar decays into the J/ψπ+π−and J/ψϕ(1020) final states gives ϕs= 1 ± 37 mrad, consistent with the Standard Model prediction.[Figure not available: see fulltext.]

KW - B physics

KW - CP violation

KW - Hadron-Hadron scattering (experiments)

KW - Spectroscopy

U2 - 10.1007/JHEP08(2017)037

DO - 10.1007/JHEP08(2017)037

M3 - Article

AN - SCOPUS:85027885048

SN - 1126-6708

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 37

ER -

Resonances and CP violation in Bs 0and B¯s0→J/ψK+ K−decays in the mass region above the ϕ(1020)

Résumé

Accès au document

Empreinte digitale

Contient cette citation

Resonances and CP violation in B_s ⁰and B¯s0→J/ψ^K+ ^K−decays in the mass region above the ϕ(1020)