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

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

2008-12-12

arxiv.org/abs/0812.2314v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 2 ps figures, RevTex

Scientific paper

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.

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