B →f0(980)(π,η(′)) decays in the PQCD approach

Abstract

Based on the assumption of a two-quark structure of the scalar meson f0 (980), we calculate the branching ratios and CP-violating asymmetries for the four B → f0(980)π and B → f0(980)η(′) decays by employing the perturbative QCD (pQCD) factorization approach. The leading order pQCD predictions for branching ratios are, Br(B− → f0(980)−) ∼ 2.5 × 10−6, Br(B̄0 → f0(980)π0) ∼ 2.6 × 10−7, Br(B̄0 → f0(980)π) ∼ 2.5 × 10−7 and Br(B̄0 → f0(980)η′) ∼ 6.7 × 10−7, which are consistent with both the QCD factorization predictions and the experimental upper limits.