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

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, $Br(B^{-}\to f_0(980){\pi }^{-})\sim 2.5\times 10^{-6}$, $Br({\bar{B}}^0\to f_0(980){\pi }^0)\sim 26\times 10^{-7}$, $Br({\bar{B}}^0\to f_0(980)\eta )\sim 2.5\times 10^{-7}$ 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.

13 pages, 2 ps figures, RevTex

References in corpus (4)

• Twist-3 distribution amplitudes of scalar mesons from QCD sum rules
• Gluonic contribution to $B\to {\eta }^{(\prime )}$ form factors
• Study of scalar mesons f_0(980) and f_0(1500) from $B\to f_0(980)K$ and $B\to f_0(1500)K$ Decays
• $B^0\to \omega {\eta }^{(\prime )}$ and $\varphi {\eta }^{(\prime )}$ decays in the perturbative QCD approach

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• Cabibbo-Kobayashi-Maskawa-favored $B$ decays to a scalar meson and a $D$ meson
• Study of $B\to K_0^{\ast }(1430)K^{(\ast )}$ decays in QCD Factorization Approach
• Branching Ratio and CP Asymmetry of B_s \to K^*_0(1430)ρ(ω,ϕ) Decays in the PQCD Approach
• Study of f_0(980) and f_0(1500) from B_s \to f_0(980)K, f_0(1500)K Decays
• Study of f_0(980) and f_0(1500) from B_s \to f_0(980)π, f_0(1500)πDecays