Szczegóły publikacji
Opis bibliograficzny
Observation of $J/\psi\phi$ structures consistent with exotic states from amplitude analysis of $B^{+} \to J/\psi\phi K^{+}$ decays / R. Aaij, [et al.], M. FIRLEJ, [et al.], T. FIUTOWSKI, [et al.], M. IDZIK, [et al.], W. KUCEWICZ, [et al.], P. MORAWSKI, [et al.], J. MOROŃ, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], K. ŚWIENTEK, [et al.], T. SZUMLAK, [et al.] // Physical Review Letters ; ISSN 0031-9007. — 2017 — vol. 118 iss. 2, s. 022003-1–022003-10. — Bibliogr. s. 022003-6–022003-7. — Publikacja dostępna online od: 2017-01-11. — W. Kucewicz – pierwsza afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
Autorzy (755)
Dane bibliometryczne
| ID BaDAP | 105066 |
|---|---|
| Data dodania do BaDAP | 2017-05-23 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.118.022003 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
The first full amplitude analysis of B+ -> J/psi phi K+ with J/psi -> mu(+)mu(-), phi -> K+K- decays is performed with a data sample of 3 fb(-1) of pp collision data collected at root s = 7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into phi K+ , and four J/psi phi structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state.