An analysis of B meson decays to two light pseudoscalar nonets with deltaS=1 in QCD factorization approach

TL;DR

This paper performs a detailed numerical analysis of B meson decays into light pseudoscalar pairs with deltaS=1 using QCD factorization, fitting parameters to match experimental data.

Contribution

It provides a comprehensive fit of branching ratios and CP asymmetries in B decays within the standard model using QCD improved factorization.

Findings

Achieved good fit for most decay parameters

Standard model adequately explains B decay processes

Parameter variations improve agreement with experimental data

Abstract

We have performed a numerical analysis of branching ratios and direct CP-asymmetries of B meson decays to two light pseudoscalar nonets with deltaS=1 using QCD improved factorization. The parameters related to B meson including its semileptonic form factors, strange quark mass and the CKM phase angle have been varied over a limited range and phenomenological parameters used to parameterize divergences in hard spectator scattering and weak annihilation have been varied over a wide range simultaneously with an aim to achieve a fit of branching ratios and some direct CP-asymmetries. A good fit for the majority of the parameters has been achieved indicating that the standard model is quite satisfactory in accounting for these processes.