1.
Phys Rev Lett
; 93(22): 221801, 2004 Nov 26.
Artículo
en Inglés
| MEDLINE
| ID: mdl-15601081
RESUMEN
A new method for a precision measurement of the Cabibbo-Kobayashi-Maskawa matrix element |V(ub)| is discussed, which combines good theoretical control with high efficiency and a powerful discrimination against charm background. The resulting combined theoretical uncertainty on |V(ub)| is estimated to be 10%.