The decay Lambda(b)(0) --> J/psi Lambda is observed in 110 pb(-1) of p (p) over bar collisions taken at root s = 1.8 TeV. These data are used to measure a Lambda(b)(0) mass of 5621+/-4(stat)+/-3(syst) MeV/c(2), and a mass difference between the Lambda(b)(0) and the B-0 of 340+/-5(stat)+/-1(syst) MeV/c(2). The production cross-section times branching fraction for the decay Lambda(b)(0) --> J/psi Lambda relative to that for the decay B-0 --> J/psi K-S(0) has been measured to be 0.27+/-0.12(stat)+/-0.05(syst).

Observation of Lambda(b)(0)->J/psi Lambda at the Fermilab proton-antiproton collider

BISELLO, DARIO;BUSETTO, GIOVANNI;LUCCHESI, DONATELLA;MARIOTTI, MOSE';
1997

Abstract

The decay Lambda(b)(0) --> J/psi Lambda is observed in 110 pb(-1) of p (p) over bar collisions taken at root s = 1.8 TeV. These data are used to measure a Lambda(b)(0) mass of 5621+/-4(stat)+/-3(syst) MeV/c(2), and a mass difference between the Lambda(b)(0) and the B-0 of 340+/-5(stat)+/-1(syst) MeV/c(2). The production cross-section times branching fraction for the decay Lambda(b)(0) --> J/psi Lambda relative to that for the decay B-0 --> J/psi K-S(0) has been measured to be 0.27+/-0.12(stat)+/-0.05(syst).
1997
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

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/11577/2520108
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 62
  • ???jsp.display-item.citation.isi??? 59
social impact