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

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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@article{2456d678ddd64673b8ceb8887ff87201,

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 M. Xu and Milanes, \{D. A.\}",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2025.",

year = "2025",

month = jan,

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

language = "English",

volume = "85",

journal = "European Physical Journal C",

issn = "1434-6044",

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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 - Xu, M.

AU - Milanes, D. A.

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 - Article

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

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