This paper presents a study of the charmless three-body decays Bs0→KS0h+h′− (where h(′) = π, K), using a sample of pp collision data collected by the LHCb experiment during Runs 1 and 2 of the LHC, corresponding to an integrated luminosity of 9 fb−1. The decay Bs0→KS0K+K− is observed for the first time, and the following ratios of branching fractions are measured: (Formula presented.) where the uncertainties are statistical, systematic, and due to knowledge of the ratio of hadronisation fractions of the Bs0 and B0 mesons, respectively.

Improved branching-fraction measurements of Bs0→KS0h+h′− decays and first observation of Bs0→KS0K+K−

Graverini E.;Lazzari F.;Punzi G.;
2026-01-01

Abstract

This paper presents a study of the charmless three-body decays Bs0→KS0h+h′− (where h(′) = π, K), using a sample of pp collision data collected by the LHCb experiment during Runs 1 and 2 of the LHC, corresponding to an integrated luminosity of 9 fb−1. The decay Bs0→KS0K+K− is observed for the first time, and the following ratios of branching fractions are measured: (Formula presented.) where the uncertainties are statistical, systematic, and due to knowledge of the ratio of hadronisation fractions of the Bs0 and B0 mesons, respectively.
2026
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinen, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia...espandi
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/1367331
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact