Search for Lepton-Flavor Violating Decays B+ →k+μ±eâ"

(LHCb Collaboration)

doi:10.1103/PhysRevLett.123.241802

Search for Lepton-Flavor Violating Decays B+ →k+μ±eâ"

(LHCb Collaboration)

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University of Zurich
University of Liverpool
Universidade de Santiago de Compostela
University of Bristol
University of Michigan, Ann Arbor
Clermont-Auvergne University
University of Cincinnati
LNF-INFN
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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
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University of Maryland, College Park
University of Heidelberg
Aix-Marseille Université
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Syracuse University
Yandex School of Data Analysis
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University of Warwick
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National University of Science and Technology “MISIS”
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Résumé

A search for the lepton-flavor violating decays B+→K+μ±eâ" is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3 fb-1. No significant signal is observed, and upper limits on the branching fractions are set as B(B+→K+μ-e+)<7.0(9.5)×10-9 and B(B+→K+μ+e-)<6.4(8.8)×10-9 at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude.

langue originale	Anglais
Numéro d'article	241802
journal	Physical Review Letters
Volume	123
Numéro de publication	24
Les DOIs	https://doi.org/10.1103/PhysRevLett.123.241802
état	Publié - 12 déc. 2019
Modification externe	Oui

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10.1103/PhysRevLett.123.241802

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@article{2d03feb57f574320a41a4390fc9761a8,

title = "Search for Lepton-Flavor Violating Decays B+ →k+μ±e{\^a}{"}",

abstract = "A search for the lepton-flavor violating decays B+→K+μ±e{\^a}{"} is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3 fb-1. No significant signal is observed, and upper limits on the branching fractions are set as B(B+→K+μ-e+)<7.0(9.5)×10-9 and B(B+→K+μ+e-)<6.4(8.8)×10-9 at 90\% (95)\% confidence level. The results improve the current best limits on these decays by more than one order of magnitude.",

author = "\{(LHCb Collaboration)\} and R. Aaij and \{Abell{\'a}n Beteta\}, C. and T. Ackernley and B. Adeva and M. Adinolfi and Aidala, \{C. A.\} 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 Andrews, \{J. E.\} and F. Archilli and P. D'Argent 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 V. Batozskaya and B. Batsukh and A. Battig and V. Battista and A. Bay and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2019 CERN. for the LHCb Collaboration. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"} Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.",

year = "2019",

month = dec,

day = "12",

doi = "10.1103/PhysRevLett.123.241802",

language = "English",

volume = "123",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "24",

}

TY - JOUR

T1 - Search for Lepton-Flavor Violating Decays B+ →k+μ±eâ"

AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Aidala, C. A.

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 - Andrews, J. E.

AU - Archilli, F.

AU - D'Argent, P.

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 - Batozskaya, V.

AU - Batsukh, B.

AU - Battig, A.

AU - Battista, V.

AU - Bay, A.

AU - Fleuret, F.

AU - Maurice, E.

N1 - Publisher Copyright: © 2019 CERN. for the LHCb Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.

PY - 2019/12/12

Y1 - 2019/12/12

N2 - A search for the lepton-flavor violating decays B+→K+μ±eâ" is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3 fb-1. No significant signal is observed, and upper limits on the branching fractions are set as B(B+→K+μ-e+)<7.0(9.5)×10-9 and B(B+→K+μ+e-)<6.4(8.8)×10-9 at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude.

AB - A search for the lepton-flavor violating decays B+→K+μ±eâ" is performed using a sample of proton-proton collision data, collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponding to an integrated luminosity of 3 fb-1. No significant signal is observed, and upper limits on the branching fractions are set as B(B+→K+μ-e+)<7.0(9.5)×10-9 and B(B+→K+μ+e-)<6.4(8.8)×10-9 at 90% (95)% confidence level. The results improve the current best limits on these decays by more than one order of magnitude.

UR - https://www.scopus.com/pages/publications/85076561319

U2 - 10.1103/PhysRevLett.123.241802

DO - 10.1103/PhysRevLett.123.241802

M3 - Article

C2 - 31922836

AN - SCOPUS:85076561319

SN - 0031-9007

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 241802

ER -

Search for Lepton-Flavor Violating Decays B+ →k+μ±eâ"

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