Szczegóły publikacji
Opis bibliograficzny
Search for $B^+_c \to \pi^+ \mu^+ \mu^-$ decays and measurement of the branching fraction ratio $B(B^+_c \to \psi (2S)\pi^+)/ B(B^+_c \to J/\psi\pi^+)$ / R. Aaij, [et al.], P. KOPCIEWICZ, [et al.], W. Kucewicz, [et al.], M. W. MAJEWSKI, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], J. RYŻKA, [et al.], T. SZUMLAK, [et al.], A. UKLEJA, [et al.] // The European Physical Journal . C, Particles and Fields ; ISSN 1434-6044. — 2024 — vol. 84 iss. 5 art. no. 468, s. 1–17. — Bibliogr. s. 10–12, Abstr. — Publikacja dostępna online od: 2024-05-07. — P. Kopciewicz - dod. afiliacja: European Organization for Nuclear Research (CERN), Geneva, Switzerland. — W. Kucewicz - afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
Autorzy (1098)
- AGHKopciewicz Paweł
- AGHMajewski Maciej W.
- AGHObłąkowska-Mucha Agnieszka
- AGHRyżka Jakub
- AGHSzumlak Tomasz
- AGHUkleja Artur
- Aaij Roel
- Abudinén Fernando
- Kucewicz Wojciech
Dane bibliometryczne
| ID BaDAP | 158066 |
|---|---|
| Data dodania do BaDAP | 2025-02-10 |
| Tekst źródłowy | URL |
| DOI | 10.1140/epjc/s10052-024-12669-x |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | European Physical Journal, C |
Abstract
The first search for nonresonant Bc+→π+μ+μ- decays is reported. The analysis uses proton–proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9fb-1. No evidence for an excess of signal events over background is observed and an upper limit is set on the branching fraction ratio B(Bc+→π+μ+μ-)/B(Bc+→J/ψπ+)<2.1×10-4 at 90% confidence level. Additionally, an updated measurement of the ratio of the Bc+→ψ(2S)π+ and Bc+→J/ψπ+ branching fractions is reported. The ratio B(Bc+→ψ(2S)π+)/B(Bc+→J/ψπ+) is measured to be 0.254±0.018±0.003±0.005, where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the leptonic J/ψ and ψ(2S) decays. This measurement is the most precise to date and is consistent with previous LHCb results. © The Author(s) 2024.