O(?s) perturbative and nonperturbative corrections to polarized semileptonic ?b decay distributions

In this paper we calculate first order radiative QCD corrections to the decay process b ??? cW???????? l??? ????l?? of a polarized bottom quark. Taking into account both the bottom and charm quark masses, the analytical expressions given in this paper allow for a detailed analysis of the differential decay rate of the polarized quark in dependence on the polar and azimuthal angles of the lepton pair and the angle of the polarization vector of the quark relative to the momentum direction of the W boson. The results are given for different polarization states of the charged lepton. In addition, we calculated nonperturbative corrections and estimated their contribution.

Automated summary

This study calculates first order radiative QCD corrections to the decay process of a polarized bottom quark, taking into account different polarization states and factors related to the quark. Nonperturbative corrections were also calculated and their contribution was estimated.