Study of exclusive charmless semileptonic B decays and |Vub|.
Phys Rev Lett
; 99(4): 041802, 2007 Jul 27.
Article
en En
| MEDLINE
| ID: mdl-17678351
ABSTRACT
We study semileptonic B decay to the exclusive charmless states pi, rho/omega, eta, and eta;{'} using the 16 fb(-1) CLEO Upsilon(4S) data sample. We find B(B0-->pi-l+nu)=(1.37+/-0.15stat+/-0.11sys)x10(-4) and B(B0-->rho-l+nu)=(2.93+/-0.37stat+/-0.37sys)x10(-4) and find evidence for B+-->eta'l+nu, with B(B+-->eta'l+nu)=(2.66+/-0.80stat+/-0.56sys)x10(-4). From our B-->pilnu rate for q2>16 GeV2 and lattice QCD, we find |Vub|=(3.6+/0.4stat+/0.2syst-0.4thy+0.6)x10(-3) [corrected]
Buscar en Google
Base de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Año:
2007
Tipo del documento:
Article
País de afiliación:
Estados Unidos