Isgur-Wise Function and Observables of ${\Lambda }_b$ Baryon

Abstract

In connection with planned experiments devoted to investigation of semileptonic decays of beauty baryons Isgur-Wise function and observables of ${\Lambda }_b$ baryon (decay rates and distributions, leptonic spectra and asymmetry parameters) are calculated in the framework of diquark model with taking into account of infrared regime for heavy quark.

Comments: 9 pages, LaTeX (3 figures avaible under request)