Szczegóły publikacji
Opis bibliograficzny
Observation of a new excited $D^{+}_{s}$ meson in $B^{0}\to D^{−}D^{+}K^{+}\pi^{-}$ 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, [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. 126 iss. 12 art. no. 122002, s. 122002-1–122002-11. — Bibliogr. s. 122002-5–122002-6. — Publikacja dostępna online od: 2021-03-26. — W. Kucewicz – dod. afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
Autorzy (971)
Dane bibliometryczne
| ID BaDAP | 133677 |
|---|---|
| Data dodania do BaDAP | 2021-04-27 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.126.122002 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
Using pp collision data corresponding to an integrated luminosity of 5.4 fb−1 collected with the LHCb detector at a center-of-mass energy of 13 TeV, the B0→D−D+K+π− decay is studied. A new excited D+s meson is observed decaying into the D+K+π− final state with large statistical significance. The pole mass and width, and the spin parity of the new state are measured with an amplitude analysis to be mR=2591±6±7 MeV, ΓR=89±16±12 MeV, and JP=0−, where the first uncertainty is statistical and the second systematic. Fit fractions for all components in the amplitude analysis are also reported. The new resonance, denoted as Ds0(2590)+, is a strong candidate to be the Ds(21S0)+ state, the radial excitation of the pseudoscalar ground-state D+s meson.
