$B \to f_0(980) (\pi,\etapp)$ Decays in the PQCD Approach

TL;DR

This paper calculates branching ratios and CP asymmetries for specific B meson decays involving the scalar meson $f_0(980)$ using the perturbative QCD approach, providing predictions consistent with existing data.

Contribution

It offers the first leading order pQCD predictions for these decay modes assuming a two-quark structure of $f_0(980)$, aligning with other theoretical and experimental results.

Findings

Predicted branching ratios match experimental upper limits.

Results are consistent with QCD factorization predictions.

Provides a theoretical framework for $B o f_0(980)$ decays.

Abstract

Based on the assumption of two-quark structure of the scalar meson $f_0(980)$, we calculate the branching ratios and CP-violating asymmetries for the four $B \to f_0(980)\pi$ and $B \to f_0(980)\etapp$ decays by employing the perturbative QCD (pQCD) factorization approach. The leading order pQCD predictions for branching ratios are, $Br(B^-\to f_0(980) \pi^-)\sim 2.5 \times 10^{-6}$, $Br(\bar{B}^0\to f_0(980) \pi^0)\sim 2 6 \times 10^{-7}$, $Br(\bar{B}^0\to f_0(980) \eta)\sim 2.5 \times 10^{-7}$ and $Br(\bar{B}^0\to f_0(980) \eta^\prime)\sim 6.7 \times 10^{-7}$, which are consistent with both the QCD factorization predictions and the experimental upper limits.