Measurement of branching fraction ratios for B + → D *+ D − K +, B + → D *− D + K +, and B 0 → D *− D 0 K + decays

The LHCb collaboration

doi:10.1007/JHEP12(2020)139

Measurement of branching fraction ratios for B ⁺ → D ^+ D ⁻ K ⁺, B ⁺ → D ^− D ⁺ K ⁺, and B ⁰ → D ^*− D ⁰ K ⁺ decays

The LHCb collaboration

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University of Zurich
University of Liverpool
Universidade de Santiago de Compostela
University of Bristol
Clermont-Auvergne University
University of Michigan, Ann Arbor
Sezione INFN di Milano
University of Cincinnati
University of Dortmund
European Organization for Nuclear Research
University of Glasgow
University of Barcelona
University of Manchester
Petersburg Nuclear Physics Institute (PNPI)
Imperial College London
Instituto de Biofisica da UFRJ
Université Paris-Saclay
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
ENAC-IIC-GEL
Sezione INFN di Ferrara
University of Heidelberg
Kurchatov Institute
Syracuse University
Yandex School of Data Analysis
Aix Marseille Université
University of Warwick
Centro Brasileiro de Pesquisas Fisicas
Sezione di Genova
University of Genoa
National University of Science and Technology “MISIS”
RWTH Aachen University
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
National Centre for Nuclear Research (NCBJ)
Sezione INFN di Cagliari
Moscow State University
Institute for Theoretical and Experimental Physics
LNF-INFN
Sorbonne Université
University of Padova
INFN Sezione di Bologna
University of Bologna
University of Cambridge
Institute for Nuclear Physics
Wuhan University
University of Birmingham
University of Modena and Reggio Emilia
University of Oxford
Sezione di Roma
Massachusetts Institute of Technology
National Research University
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
University of Maryland, College Park
Institute for Nuclear Research of the Russian Academy of Sciences
University of Ferrara
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
Universitat Ramon LLull - CSIC
University of Chinese Academy of Sciences
INFN Roma Tor Vergata
Institute of High Energy Physics, Chinese Academy of Sciences
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Tsinghua University
University of Edinburgh
Horia Hulubei National Institute of Physics and Nuclear Engineering
INFN Sezione di Bari
MST-8, Los Alamos National Laboratory
Universidad Nacional Autónoma de Honduras
Università degli studi di Bari Aldo Moro
Maastricht University
Agh University of Science and Technology Faculty of Computer Science
Universitá di Cagliari
Central China Normal University
Institute of Nuclear Research, National Academy of Sciences in Ukraine
University College Dublin
INFN Sezione di Trieste
Kharkov Institute of Physics and Technology
INFN Sezione di Perugia
CCLRC Rutherford Appleton Laboratory
Monash University
University of Milano
Tsinghua University
University of Valencia
University of Rome “Tor Vergata”
Pontifícia Universidade Católica do Rio de Janeiro
Universidade Federal Do Triângulo Mineiro (UFTM)
Univ. Mentouri de Constantine
South China Normal University
Vrije Universiteit Amsterdam
National Research Tomsk Polytechnic University
University of Siena
Scuola Normale Superiore di Pisa
Kurchatov Institute
Iligan Institute of Technology (IIT)
University of Florence
Universität Rostock
Universidad Nacional de Colombia
Hanoi University of Science
ICS/University of Groningen
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Pisa
Università degli Studi della Basilicata
Max-Planck-Institut für Kernphysik
University of Urbino Carlo Bo

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

Résumé

A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb⁻¹. The measured branching-fraction ratios areB(B+→D∗+D−K+)B(B+→D¯0D0K+)=0.517±0.015±0.013±0.011,B(B+→D∗−D+K+)B(B+→D¯0D0K+)=0.577±0.016±0.013±0.013,B(B0→D∗−D0K+)B(B0→D−D0K+)=1.754±0.028±0.016±0.035,B(B+→D∗+D−K+)B(B+→D∗−D+K+)=0.907±0.033±0.014, where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date. [Figure not available: see fulltext.]

langue originale	Anglais
Numéro d'article	139
journal	Journal of High Energy Physics
Volume	2020
Numéro de publication	12
Les DOIs	https://doi.org/10.1007/JHEP12(2020)139
état	Publié - 1 déc. 2020

Accès au document

10.1007/JHEP12(2020)139

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@article{e3b02227bbe14672b2a7d27fbab315ac,

title = "Measurement of branching fraction ratios for B + → D *+ D − K +, B + → D *− D + K +, and B 0 → D *− D 0 K + decays",

abstract = "A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb−1. The measured branching-fraction ratios areB(B+→D∗+D−K+)B(B+→D¯0D0K+)=0.517±0.015±0.013±0.011,B(B+→D∗−D+K+)B(B+→D¯0D0K+)=0.577±0.016±0.013±0.013,B(B0→D∗−D0K+)B(B0→D−D0K+)=1.754±0.028±0.016±0.035,B(B+→D∗+D−K+)B(B+→D∗−D+K+)=0.907±0.033±0.014, where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date. [Figure not available: see fulltext.]",

keywords = "B physics, Branching fraction, Flavor physics, Hadron-Hadron scattering (experiments)",

author = "\{The LHCb collaboration\} and R. Aaij and \{Abell{\'a}n Beteta\}, C. and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and Y. Amhis and L. An and L. Anderlini and G. Andreassi and A. Andreianov and M. Andreotti and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and S. Baker and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Baptista Leite\}, J. and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and Basels, \{J. M.\} and G. Bassi and V. Batozskaya and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2020, The Author(s).",

year = "2020",

month = dec,

day = "1",

doi = "10.1007/JHEP12(2020)139",

language = "English",

volume = "2020",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

number = "12",

}

TY - JOUR

T1 - Measurement of branching fraction ratios for B + → D *+ D − K +, B + → D *− D + K +, and B 0 → D *− D 0 K + decays

AU - The LHCb collaboration

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Baker, S.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista Leite, J.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Basels, J. M.

AU - Bassi, G.

AU - Batozskaya, V.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2020/12/1

Y1 - 2020/12/1

N2 - A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb−1. The measured branching-fraction ratios areB(B+→D∗+D−K+)B(B+→D¯0D0K+)=0.517±0.015±0.013±0.011,B(B+→D∗−D+K+)B(B+→D¯0D0K+)=0.577±0.016±0.013±0.013,B(B0→D∗−D0K+)B(B0→D−D0K+)=1.754±0.028±0.016±0.035,B(B+→D∗+D−K+)B(B+→D∗−D+K+)=0.907±0.033±0.014, where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date. [Figure not available: see fulltext.]

AB - A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb−1. The measured branching-fraction ratios areB(B+→D∗+D−K+)B(B+→D¯0D0K+)=0.517±0.015±0.013±0.011,B(B+→D∗−D+K+)B(B+→D¯0D0K+)=0.577±0.016±0.013±0.013,B(B0→D∗−D0K+)B(B0→D−D0K+)=1.754±0.028±0.016±0.035,B(B+→D∗+D−K+)B(B+→D∗−D+K+)=0.907±0.033±0.014, where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date. [Figure not available: see fulltext.]

KW - B physics

KW - Branching fraction

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

UR - https://www.scopus.com/pages/publications/85097976901

U2 - 10.1007/JHEP12(2020)139

DO - 10.1007/JHEP12(2020)139

M3 - Article

AN - SCOPUS:85097976901

SN - 1126-6708

VL - 2020

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 12

M1 - 139