Szczegóły publikacji
Opis bibliograficzny
Study of $B^0_s \to J/\psi\pi^+\pi^−K^+K^−$ decays / R. Aaij, [et al.], A. DENDEK, [et al.], M. FIRLEJ, [et al.], T. FIUTOWSKI, [et al.], M. IDZIK, [et al.], P. KOPCIEWICZ, [et al.], W. KRUPA, W. Krzemien, W. KUCEWICZ, [et al.], O. MADEJCZYK, [et al.], M. W. MAJEWSKI, [et al.], J. MOROŃ, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], B. RACHWAŁ, [et al.], J. RYŻKA, [et al.], K. ŚWIENTEK, A. Szabelski, T. SZUMLAK, [et al.] // The Journal of High Energy Physics [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1029-8479. — 2021 — iss. 2 art. no. 24, s. [1], 1–33. — Bibliogr. s. 23–27, Abstr. — W. Kucewicz - dod. afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
Autorzy (968)
- AGHDendek Adam
- AGHFirlej Mirosław
- AGHFiutowski Tomasz
- AGHIdzik Marek
- AGHKopciewicz Paweł
- AGHKrupa Wojciech
- AGHKucewicz Wojciech
- AGHMadejczyk-Dziedzic Olga
- AGHMajewski Maciej W.
- AGHMoroń Jakub
- AGHObłąkowska-Mucha Agnieszka
- AGHRachwał Bartłomiej
- AGHRyżka Jakub
- AGHSzumlak Tomasz
- AGHŚwientek Krzysztof
- Aaij Roel
- Belyaev Ivan
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 134032 |
|---|---|
| Data dodania do BaDAP | 2021-05-07 |
| Tekst źródłowy | URL |
| DOI | 10.1007/JHEP02(2021)024 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | The Journal of High Energy Physics |
Abstract
The decays B-s(0) -> J/psi pi(+)pi-K+K- are studied using a data set corresponding to an integrated luminosity of 9 fb(-1), collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13TeV. The decays B-s(0) -> J/psi K*(K) over bar *0 and B-s(0) -> chi(c1)(3872)K+K-, where the K+K- pair does not originate from a phi meson, are observed for the first time. Precise measurements of the ratios of branching fractions between intermediate chi(c1)(3872)phi, J/psi K*0 (K) over bar *0, psi(2S)phi and chi(c1)(3872)K+K- states are reported. A structure, denoted as X(4740), is observed in the J/psi phi mass spectrum and, assuming a Breit-Wigner parameterisation, its mass and width are determined to be m(X(4740)) = 4741 +/- 6 +/- 6 MeV/c(2), Gamma(X(4740)) = 53 +/- 15 +/- 11MeV, where the first uncertainty is statistical and the second is systematic. In addition, the most precise single measurement of the mass of the B-s(0) meson is performed and gives a value of m(Bs)(0) = 5366.98 +/- 0.07 +/- 0.13MeV/c(2).