Observation of the semileptonic decay B+→ pp¯ μ+νμ

The LHCb collaboration

doi:10.1007/JHEP03(2020)146

Observation of the semileptonic decay B⁺→ pp¯ μ⁺ν_μ

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
LNF-INFN
University of Dortmund
European Organization for Nuclear Research
University of Glasgow
University of Barcelona
Petersburg Nuclear Physics Institute (PNPI)
Imperial College London
Instituto de Biofisica da UFRJ
Laboratoire de l'Accélérateur Linéaire
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
ENAC-IIC-GEL
Sezione INFN di Ferrara
University of Heidelberg
Aix Marseille Université
Kurchatov Institute
Syracuse University
Yandex School of Data Analysis
Sezione INFN di Cagliari
University of Warwick
University of Manchester
Sezione di Genova
University of Genoa
National University of Science and Technology “MISIS”
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
National Centre for Nuclear Research (NCBJ)
Centro Brasileiro de Pesquisas Fisicas
University of Chinese Academy of Sciences
Institute for Theoretical and Experimental Physics
Sorbonne Université
RWTH Aachen University
Moscow State University
INFN
INFN Sezione di Bologna
University of Bologna
University of Cambridge
Institute for Nuclear Physics
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
Wuhan University
University of Ferrara
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
Universitat Ramon LLull - CSIC
INFN Roma Tor Vergata
University of Pisa
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Tsinghua University
University of Edinburgh
Horia Hulubei National Institute of Physics and Nuclear Engineering
MST-8, Los Alamos National Laboratory
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Max-Planck-Institut für Kernphysik
Agh University of Science and Technology Faculty of Computer Science
Central China Normal University
Institute of Nuclear Research, National Academy of Sciences in Ukraine
INFN Sezione di Trieste
Kharkov Institute of Physics and Technology
CCLRC Rutherford Appleton Laboratory
Institute for Nuclear Research of the Russian Academy of Sciences
University of Maryland, College Park
University of Milano
Tsinghua University
University of Valencia
Pontifícia Universidade Católica do Rio de Janeiro
Universidade Federal Do Triângulo Mineiro (UFTM)
Institute of High Energy Physics, Chinese Academy of Sciences
Univ. Mentouri de Constantine
Vrije Universiteit Amsterdam
National Research Tomsk Polytechnic University
University of Siena
South China Normal University
University of Padova
Scuola Normale Superiore di Pisa
Kurchatov Institute
Universitá di Cagliari
Iligan Institute of Technology (IIT)
University College Dublin
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 Rome “Tor Vergata”
Università degli Studi della Basilicata
University of Rome
University of Urbino Carlo Bo
Hunan University
Shaanxi Normal University

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

5 Citations (Scopus)

Résumé

The Cabibbo-suppressed semileptonic decay B⁺→ pp¯ μ⁺ν_μ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb⁻¹ at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B⁺→ J/ψK⁺ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [Figure not available: see fulltext.]

langue originale	Anglais
Numéro d'article	146
journal	Journal of High Energy Physics
Volume	2020
Numéro de publication	3
Les DOIs	https://doi.org/10.1007/JHEP03(2020)146
état	Publié - 1 mars 2020

Accès au document

10.1007/JHEP03(2020)146

Contient cette citation

@article{dae31640f6354652944ffe1af3f4bcba,

title = "Observation of the semileptonic decay B+→ pp¯ μ+νμ ",

abstract = "The Cabibbo-suppressed semileptonic decay B+→ pp¯ μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [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 P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. 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 M. Andreotti and F. Archilli and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, \{J. J.\} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and G. Bassi and V. Batozskaya and B. Batsukh and A. Battig and F. Fleuret and E. Maurice and Niel, \{E. M.\}",

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

year = "2020",

month = mar,

day = "1",

doi = "10.1007/JHEP03(2020)146",

language = "English",

volume = "2020",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "3",

}

TY - JOUR

T1 - Observation of the semileptonic decay B+→ pp¯ μ+νμ

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 - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

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 - Andreotti, M.

AU - Archilli, F.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Bassi, G.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battig, A.

AU - Fleuret, F.

AU - Maurice, E.

AU - Niel, E. M.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - The Cabibbo-suppressed semileptonic decay B+→ pp¯ μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [Figure not available: see fulltext.]

AB - The Cabibbo-suppressed semileptonic decay B+→ pp¯ μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [Figure not available: see fulltext.]

KW - B physics

KW - Branching fraction

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

U2 - 10.1007/JHEP03(2020)146

DO - 10.1007/JHEP03(2020)146

M3 - Article

AN - SCOPUS:85082872106

SN - 1126-6708

VL - 2020

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 3

M1 - 146

ER -

Observation of the semileptonic decay B+→ pp¯ μ+νμ

Résumé

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Empreinte digitale

Contient cette citation

Observation of the semileptonic decay B⁺→ pp¯ μ⁺ν_μ