Calculation of BR(B̄0→Λc++p̄) in the perturbative QCD approach
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
75
Journal Issue
3
Date Issued
2007
Author(s)
Abstract
We calculate the branching ratio of B̄0→Λc+p̄ in the PQCD approach. Most previous model calculations obtained branching ratios significantly larger than experimental data. We find that the predicted branching ratio for BR(B̄0→Λc+p̄) in the PQCD approach can vary over a range of (2.3∼5.1)×10-5 with the largest uncertainty coming from the parameters in the wave function of Λc. With the favored values for the parameters in the Λc+ wave function, β=1GeV and mq=0.3GeV, the branching ratio is about 2.3×10-5 which is satisfactorily consistent with the value measured by experiments. © 2007 The American Physical Society.
Type
journal article