Remarks about decay widths of two-body nonleptonic and semileptonic $B$ decays

TL;DR

This paper discusses decay widths of two-body nonleptonic and semileptonic B decays at tree level, using factorization and quark model parametrizations to analyze decay dynamics and ratios.

Contribution

It provides a comparative analysis of decay width expressions using WSB and ISGW models, focusing on decay dynamics and form factor ratios.

Findings

Derived ratios between decay widths to extract form factors.

Analyzed decay width expressions for l=0 and l=1 mesons.

Highlighted the role of factorization hypothesis in decay calculations.

Abstract

We present a brief discussion about expressions of decay widths of exclusive nonleptonic and semileptonic B decays at tree level including $l=0$ and $l=1$ mesons in final state. Our analysis is carried out assuming factorization hypothesis and using parametrizations of hadronic matrix elements given in WSB and ISGW quark models. Special interest is focused on dynamics of these processes and several important ratios between decay widths to determine form factors and decay constants are given.