Fabio Pisano

Search for $B_{(s)}^{*0}\rightarrow \mu ^+\mu ^-$ in $B_c^+\rightarrow \pi ^+\mu ^+\mu ^-$ decays

Brundu, D.;De Angelis, C.;Dettori, F.;Dordei, F.;Fabiano, F.;Litvinov, R.;Manca, G.;Oldeman, R.;Saitta, B.;Sun, J.;
2025-01-01

Abstract

A search for the very rare B∗0 → μ+μ−and B∗0s → μ+μ− decays is conducted by analysing the B+c → 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 B+c → J/ψπ+ decays, RB∗0(μ+μ−)π+/J/ψπ+ < 3.8 × 10−5 and RB∗0s (μ+μ−)π+/J/ψπ+ < 5.0 × 10−5.
2025
Inglese
85
1
20
16
Esperti anonimi
scientifica
Null, Null; Aaij, R.; Abdelmotteleb, A. S. W.; Beteta, C. Abellan; Abudinén, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P ...espandi
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
1135
open
File in questo prodotto:
File Dimensione Formato  
s10052-024-13573-0.pdf

accesso aperto

Tipologia: versione editoriale (VoR)
Dimensione 1.92 MB
Formato Adobe PDF
1.92 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Questionario e social

Condividi su:
Impostazioni cookie