Szczegóły publikacji
Opis bibliograficzny
Amplitude analysis of the $\Lambda^{+}_{c} \to pK^{-}\pi^{+}$ decay and $\Lambda^{+}_{c}$ baryon polarization measurement in semileptonic beauty hadron decays / R. Aaij, [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.], 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. D ; ISSN 2470-0010. — Tytuł poprz.: Physical Review D. Particles, fields, gravitation, and cosmology ; ISSN: 1550-7998. — 2023 — vol. 108 iss. 1 art. no. 012023, s. 012023-1–012023-27. — Bibliogr. s. 012023-21–012023-22, Abstr. — Publikacja dostępna online od: 2023-07-28. — W. Kucewicz – dod. afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
Autorzy (1014)
Dane bibliometryczne
| ID BaDAP | 149620 |
|---|---|
| Data dodania do BaDAP | 2023-11-22 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevD.108.012023 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review, D |
Abstract
An amplitude analysis of Λc+→pK-π+ decays together with a measurement of the Λc+ polarization vector in semiōleptonic beauty hadron decays is presented. A sample of 400 000 candidates is selected from proton-proton collisions recorded by the LHCb detector at a center-of-mass energy of 13 TeV. An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. The mass and width of the Λ(2000) state are also determined. A significant Λc+ polarization is found. A large sensitivity of the Λc+→pK-π+ decay to the polarization is seen, making the amplitude model suitable for Λc+ polarization measurements in other systems.
