Relative rates of B meson decays into psi(2S) and J/psi mesons
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
01/06/2009
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We report on a study of the relative rates of B meson decays into psi(2S) and J/psi mesons using 1.3 fb(-1) of p (p) over bar collisions at root s = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe the channels B(s)(0) -> psi(2S)phi, B(s)(0) -> J/psi phi, B(+/-) -> psi(2S)K(+/-), and B(+/-) -> J/psi K(+/-) and we measure the relative branching fractions for these channels to be B(B(s)(0) -> psi(2S)phi)/B(B(s)(0) -> J/psi phi)=0.53 +/- 0.10(stat)+/- 0.07(syst)+/- 0.06(B), B(B(+) -> psi(2S)K(+))/B(B(+) -> J/psi K(+))=0.63 +/- 0.05(stat)+/- 0.03(syst)+/- 0.07(B), where the final error corresponds to the uncertainty in the J/psi and psi(2S) branching ratio into two muons. |
Formato |
7 |
Identificador |
http://dx.doi.org/10.1103/PhysRevD.79.111102 Physical Review D. College Pk: Amer Physical Soc, v. 79, n. 11, p. 7, 2009. 1550-7998 http://hdl.handle.net/11449/24381 10.1103/PhysRevD.79.111102 WOS:000267701300002 WOS000267701300002.pdf |
Idioma(s) |
eng |
Publicador |
Amer Physical Soc |
Relação |
Physical Review D |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |