Szczegóły publikacji
Opis bibliograficzny
Observation of new resonances decaying to $J/\psi K^{+}$ and $J/\psi\phi$ / 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, [et al.], 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, [et al.], T. SZUMLAK, [et al.] // Physical Review Letters ; ISSN 0031-9007. — 2021 — vol. 127 iss. 8 art. no. 082001, s. 082001-1–082001-11. — Bibliogr. s. 082001-5–082001-6. — Publikacja dostępna online od: 2021-08-17. — W. Kucewicz - pierwsza afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
Autorzy (963)
Dane bibliometryczne
| ID BaDAP | 135968 |
|---|---|
| Data dodania do BaDAP | 2021-09-16 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.127.082001 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
The first observation of exotic states with a new quark content ccus decaying to the J/Psi K+ final state is reported with high significance from an amplitude analysis of the B+-> J/ Psi phi K+ decay. The analysis is carried out using proton-proton collision data corresponding to a total integrated luminosity of 9 fb- 1 collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV. The most significant state, Z(cs)(4000)+, has a mass of 4003 +/- 6 (-14) (+4) MeV, a width of 131 +/- 15 +/- 26 MeV, and spin parity J(P) = 1(+), where the quoted uncertainties are statistical and systematic, respectively. A new 1(+) X(4685) state decaying to the J/Psi phi final state is also observed with high significance. In addition, the four previously reported J/Psi phi states are confirmed and two more exotic states, Z(cs) (4220) (+) and X(4630), are observed with significance exceeding 5 standard deviations.