Search for B(s)∗0→μ+μ- in Bc+→π+μ+μ- decays

LHCb Collaboration

doi:10.1140/epjc/s10052-024-13573-0

Search for B(s)∗0→μ+μ- in Bc+→π+μ+μ- decays

LHCb Collaboration

CERN
Swiss Federal Institute of Technology Lausanne
National Institute for Nuclear Physics
University of Padua
CAS - Institute of High Energy Physics
University of Chinese Academy of Sciences
University of Valencia
RWTH Aachen University
Central China Normal University
Tsinghua University
University of Warwick
Peking University
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Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Max Planck Institute for Nuclear Physics
University of Manchester
Université Paris-Saclay
University of Maryland, College Park
University of Genoa
Imperial College London
Consejo Nacional de Rectores (CONARE)
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University of Bristol
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National Institute for Subatomic Physics
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AGH University of Krakow
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Universidad Nacional de Colombia
Scuola Normale Superiore di Pisa
Departement de Physique Nucleaire (SPhN)
University of Bergamo
Pontifícia Universidade Católica do Rio de Janeiro
University of Pisa
NASU - Institute of Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Bologna
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NASU - Kharkov Institute of Physics and Technology
Universidade de Brasília
Centro Federal de Educação Tecnológica Celso Suckow da Fonseca
National Autonomous University of Honduras
Facultad de Ciencias Fisicas
University of Rome Tor Vergata

Research output: Contribution to journal › Article › peer-review

Abstract

A search for the very rare B∗0→μ+μ- and Bs∗0→μ+μ- decays is conducted by analysing the Bc+→π+μ+μ- process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9\,fb-1. The signal signatures correspond to simultaneous peaks in the μ+μ- and π+μ+μ- invariant masses. No evidence for an excess of events over background is observed for either signal decay mode. Upper limits at the 90% confidence level are set on the branching fractions relative to that for Bc+→J/ψπ+ decays, (Formula presented.)

Original language	English
Article number	20
Journal	European Physical Journal C
Volume	85
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s10052-024-13573-0
State	Published - Jan 2025
Externally published	Yes

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10.1140/epjc/s10052-024-13573-0

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title = "Search for B(s)∗0→μ+μ- in Bc+→π+μ+μ- decays",

abstract = "A search for the very rare B∗0→μ+μ- and Bs∗0→μ+μ- decays is conducted by analysing the Bc+→π+μ+μ- process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9\textbackslash{},fb-1. The signal signatures correspond to simultaneous peaks in the μ+μ- and π+μ+μ- invariant masses. No evidence for an excess of events over background is observed for either signal decay mode. Upper limits at the 90\% confidence level are set on the branching fractions relative to that for Bc+→J/ψπ+ decays, (Formula presented.)",

author = "\{LHCb Collaboration\} and G. Zunica and D. Zuliani and Q. Zou and J. Zhuo and V. Zhukov and X. Zhu and X. Zhu and Zhu, \{L. Z.\} and V. Zhovkovska and Y. Zhou and X. Zhou and T. Zhou and Y. Zheng and Zheng, \{X. Z.\} and Zheng, \{S. Z.\} and A. Zhelezov and A. Zharkova and Y. Zhao and Zhang, \{Y. Z.\} and Y. Zhang and S. Zhang and S. Zhang and L. Zhang and J. Zhang and D. Zhang and C. Zhang and M. Zeng and C. Zeng and M. Zdybal and M. Zavertyaev and E. Zaffaroni and Y. Yuan and X. Yuan and J. Yu and Yu, \{C. Y.\} and H. Yin and H. Yeung and V. Yeroshenko and Z. Yang and Z. Yang and Y. Yang and X. Yang and S. Yang and K. Yang and D. Yang and Z. Xu and Z. Xu and Z. Xu and \{Castro Godinez\}, J. and \{Calderon Ramirez\}, S.",

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year = "2025",

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doi = "10.1140/epjc/s10052-024-13573-0",

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T1 - Search for B(s)∗0→μ+μ- in Bc+→π+μ+μ- decays

AU - LHCb Collaboration

AU - Zunica, G.

AU - Zuliani, D.

AU - Zou, Q.

AU - Zhuo, J.

AU - Zhukov, V.

AU - Zhu, X.

AU - Zhu, L. Z.

AU - Zhovkovska, V.

AU - Zhou, Y.

AU - Zhou, X.

AU - Zhou, T.

AU - Zheng, Y.

AU - Zheng, X. Z.

AU - Zheng, S. Z.

AU - Zhelezov, A.

AU - Zharkova, A.

AU - Zhao, Y.

AU - Zhang, Y. Z.

AU - Zhang, Y.

AU - Zhang, S.

AU - Zhang, L.

AU - Zhang, J.

AU - Zhang, D.

AU - Zhang, C.

AU - Zeng, M.

AU - Zeng, C.

AU - Zdybal, M.

AU - Zavertyaev, M.

AU - Zaffaroni, E.

AU - Yuan, Y.

AU - Yuan, X.

AU - Yu, J.

AU - Yu, C. Y.

AU - Yin, H.

AU - Yeung, H.

AU - Yeroshenko, V.

AU - Yang, Z.

AU - Yang, Y.

AU - Yang, X.

AU - Yang, S.

AU - Yang, K.

AU - Yang, D.

AU - Xu, Z.

AU - Castro Godinez, J.

AU - Calderon Ramirez, S.

PY - 2025/1

Y1 - 2025/1

N2 - A search for the very rare B∗0→μ+μ- and Bs∗0→μ+μ- decays is conducted by analysing the Bc+→π+μ+μ- process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9\,fb-1. The signal signatures correspond to simultaneous peaks in the μ+μ- and π+μ+μ- invariant masses. No evidence for an excess of events over background is observed for either signal decay mode. Upper limits at the 90% confidence level are set on the branching fractions relative to that for Bc+→J/ψπ+ decays, (Formula presented.)

AB - A search for the very rare B∗0→μ+μ- and Bs∗0→μ+μ- decays is conducted by analysing the Bc+→π+μ+μ- process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9\,fb-1. The signal signatures correspond to simultaneous peaks in the μ+μ- and π+μ+μ- invariant masses. No evidence for an excess of events over background is observed for either signal decay mode. Upper limits at the 90% confidence level are set on the branching fractions relative to that for Bc+→J/ψπ+ decays, (Formula presented.)

UR - https://www.scopus.com/pages/publications/105012473196

U2 - 10.1140/epjc/s10052-024-13573-0

DO - 10.1140/epjc/s10052-024-13573-0

M3 - Artículo

AN - SCOPUS:105012473196

SN - 1434-6044

VL - 85

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

M1 - 20

ER -

Search for B(s)∗0→μ+μ- in Bc+→π+μ+μ- decays

Abstract

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