First observation of the rare B+ →d+K+π- decay

(LHCb Collaboration)

doi:10.1103/PhysRevD.93.051101

First observation of the rare B+ →d+K+π- decay

(LHCb Collaboration)

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

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

Résumé

The B+→D+K+π- decay is observed in a data sample corresponding to 3.0 fb-1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. The signal significance is 8σ and the branching fraction is measured to be B(B+→D+K+π-)=(5.31±0.90±0.48±0.35)×10-6, where the uncertainties are statistical, systematic and due to the normalization mode B+→D-K+π+, respectively. The Dalitz plot appears to be dominated by broad structures. Angular distributions are exploited to search for quasi-two-body contributions from B+→D2∗(2460)0K+ and B+→D+K∗(892)0 decays. No significant signals are observed and upper limits are set on their branching fractions.

langue originale	Anglais
Numéro d'article	051101
journal	Physical Review D
Volume	93
Numéro de publication	5
Les DOIs	https://doi.org/10.1103/PhysRevD.93.051101
état	Publié - 3 mars 2016

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10.1103/PhysRevD.93.051101

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@article{b4acabd813ea4bc4ab4cb562ae448479,

title = "First observation of the rare B+ →d+K+π- decay",

abstract = "The B+→D+K+π- decay is observed in a data sample corresponding to 3.0 fb-1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. The signal significance is 8σ and the branching fraction is measured to be B(B+→D+K+π-)=(5.31±0.90±0.48±0.35)×10-6, where the uncertainties are statistical, systematic and due to the normalization mode B+→D-K+π+, respectively. The Dalitz plot appears to be dominated by broad structures. Angular distributions are exploited to search for quasi-two-body contributions from B+→D2∗(2460)0K+ and B+→D+K∗(892)0 decays. No significant signals are observed and upper limits are set on their branching fractions.",

author = "\{(LHCb Collaboration)\} and R. Aaij and \{Abell{\'a}n Beteta\}, C. and B. Adeva and M. Adinolfi and A. Affolder 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 \{Aquines Gutierrez\}, O. and F. Archilli and P. D'Argent and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, \{J. J.\} and A. Badalov and C. Baesso and W. Baldini and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and Bel, \{L. J.\} and V. Bellee and F. Fleuret",

note = "Publisher Copyright: {\textcopyright} 2016 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the «http://creativecommons.org/licenses/by/3.0/» Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2016",

month = mar,

day = "3",

doi = "10.1103/PhysRevD.93.051101",

language = "English",

volume = "93",

journal = "Physical Review D",

issn = "2470-0010",

number = "5",

}

TY - JOUR

T1 - First observation of the rare B+ →d+K+π- decay

AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

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 - Aquines Gutierrez, O.

AU - Archilli, F.

AU - D'Argent, P.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Bel, L. J.

AU - Bellee, V.

AU - Fleuret, F.

N1 - Publisher Copyright: © 2016 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the «http://creativecommons.org/licenses/by/3.0/» Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2016/3/3

Y1 - 2016/3/3

N2 - The B+→D+K+π- decay is observed in a data sample corresponding to 3.0 fb-1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. The signal significance is 8σ and the branching fraction is measured to be B(B+→D+K+π-)=(5.31±0.90±0.48±0.35)×10-6, where the uncertainties are statistical, systematic and due to the normalization mode B+→D-K+π+, respectively. The Dalitz plot appears to be dominated by broad structures. Angular distributions are exploited to search for quasi-two-body contributions from B+→D2∗(2460)0K+ and B+→D+K∗(892)0 decays. No significant signals are observed and upper limits are set on their branching fractions.

AB - The B+→D+K+π- decay is observed in a data sample corresponding to 3.0 fb-1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. The signal significance is 8σ and the branching fraction is measured to be B(B+→D+K+π-)=(5.31±0.90±0.48±0.35)×10-6, where the uncertainties are statistical, systematic and due to the normalization mode B+→D-K+π+, respectively. The Dalitz plot appears to be dominated by broad structures. Angular distributions are exploited to search for quasi-two-body contributions from B+→D2∗(2460)0K+ and B+→D+K∗(892)0 decays. No significant signals are observed and upper limits are set on their branching fractions.

U2 - 10.1103/PhysRevD.93.051101

DO - 10.1103/PhysRevD.93.051101

M3 - Article

AN - SCOPUS:84961131202

SN - 2470-0010

VL - 93

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 051101

ER -

First observation of the rare B+ →d+K+π- decay

Résumé

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