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.

arXiv comment9 pages, LaTeX (3 figures avaible under request)