Szczegóły publikacji
Opis bibliograficzny
Measurement of $\Lambda^{0}_{b}$, $\Lambda^{+}_{c}$, and $\Lambda$ decay parameters using $\Lambda^{0}_{b} \to \Lambda^{+}_{c}h^{-}$ decays / R. Aaij, [et al.], S. BASHIR, [et al.], S. HASHMI, [et al.], P. KOPCIEWICZ, [et al.], M. W. MAJEWSKI, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], J. RYŻKA, [et al.], T. SZUMLAK, [et al.], A. UKLEJA, [et al.] // Physical Review Letters ; ISSN 0031-9007 . — 2024 — vol. 133 iss. 26 art. no. 261804, s. 261804-1–261804-15. — Bibliogr. s. 261804-6–261804–8, Abstr. — Publikacja dostępna online od: 2024-12-30. — P. Kopciewicz - dod. afiliacja: European Organization for Nuclear Research (CERN), Geneva, Switzerland
Autorzy (1129)
Dane bibliometryczne
| ID BaDAP | 158092 |
|---|---|
| Data dodania do BaDAP | 2025-02-11 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.133.261804 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
A comprehensive study of the angular distributions in the bottom-baryon decays Λ0𝑏 →Λ+𝑐ℎ−(ℎ =𝜋,𝐾), followed by Λ+𝑐 →Λℎ+ with Λ →𝑝𝜋− or Λ+𝑐 →𝑝𝐾0S decays, is performed using a data sample of proton-proton collisions corresponding to an integrated luminosity of 9 fb−1 collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV. The decay parameters and the associated charge-parity (𝐶𝑃) asymmetries are measured, with no significant 𝐶𝑃 violation observed. For the first time, the Λ0 𝑏 →Λ+𝑐ℎ− decay parameters are measured. The most precise measurements of the decay parameters 𝛼, 𝛽, and 𝛾 are obtained for Λ+𝑐 decays and an independent measurement of the decay parameters for the strange-baryon Λ decay is provided. The results deepen our understanding of weak decay dynamics in baryon decays.