This article presents the first measurement of the ratio of branching fractions B(Lambda0(b) --> Lambda+_c mu- nu-bar _mu)/B(Lambda0(b) --> Lambda+_c pi+-). Measurements in two control samples using the same technique, B(B-bar0 --> D+ mu- nu-bar_mu)/B(B-bar0 --> D+ pi+-) and B(B-bar0 --> D*(2010)+ pi+-), are also reported. The analysis uses data from an integrated luminosity of approximately 172 pb-1 of p anti-p collisions at s**(1/2) =1.96 TeV, collected with the CDF II detector at the Fermilab Tevatron.
A. Castro, M. Deninno, P. Mazzanti, N. Moggi, F. Rimondi, F. Semeria, et al. (2009). First Measurement of the Ratio of Branching Fractions B(Lambda0(b) -> Lambda+_c mu- nu-bar_mu)/B(Lambda0(b) --> Lambda+_c pi+-). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 79, 032001-1-032001-36 [10.1103/PhysRevD.79.032001].
First Measurement of the Ratio of Branching Fractions B(Lambda0(b) -> Lambda+_c mu- nu-bar_mu)/B(Lambda0(b) --> Lambda+_c pi+-)
CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2009
Abstract
This article presents the first measurement of the ratio of branching fractions B(Lambda0(b) --> Lambda+_c mu- nu-bar _mu)/B(Lambda0(b) --> Lambda+_c pi+-). Measurements in two control samples using the same technique, B(B-bar0 --> D+ mu- nu-bar_mu)/B(B-bar0 --> D+ pi+-) and B(B-bar0 --> D*(2010)+ pi+-), are also reported. The analysis uses data from an integrated luminosity of approximately 172 pb-1 of p anti-p collisions at s**(1/2) =1.96 TeV, collected with the CDF II detector at the Fermilab Tevatron.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
