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.)

Zunica, G., Zuliani, D., Zou, Q., Zhuo, J., Zhukov, V., Zhu, X., et al. (2025). Search for B(s)∗0→μ+μ- in Bc+→π+μ+μ- decays. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 85(1) [10.1140/epjc/s10052-024-13573-0].

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

Santovetti E.;Archilli F.;
2025-01-01

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.)
2025
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
English
Con Impact Factor ISI
Zunica, G., Zuliani, D., Zou, Q., Zhuo, J., Zhukov, V., Zhu, X., et al. (2025). Search for B(s)∗0→μ+μ- in Bc+→π+μ+μ- decays. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 85(1) [10.1140/epjc/s10052-024-13573-0].
Zunica, G; Zuliani, D; Zou, Q; Zhuo, J; Zhukov, V; Zhu, X; Zhu, X; Zhu, Lz; Zhovkovska, V; Zhou, Y; Zhou, X; Zhou, T; Zheng, Y; Zheng, Xz; Zheng, Sz; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/465186
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