Nonleptonic and semileptonic Lambda(b) -> Lambda(c) transitions in a potential quark model

Abstract

Nonleptonic and semileptonic decay widths of Lambda(b) -> Lambda(c) are analyzed within heavy quark limit and Isgur-Wise formalism. A modified QCD Cornell interaction with the additional logarithmic term in the hyperspherical coordinates is considered and the masses of heavy flavour baryons are calculated. The obtained masses are consequently employed to study the rates of Lambda(b) -> Lambda(c). The achieved results are motivating.