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Chinese Physics C> 2009, Vol. 33> Issue(7) : 508-515 DOI: 10.1088/1674-1137/33/7/002

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

  • 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)π－)~2.5×10－6, Br(B0→f0(980)π0)~2.6×10－7, Br(B0→f0(980)η)~2.5×10－7 and Br(B0→f0(980)η′)~6.7×10－7, which are consistent with both the QCD factorization predictions and the experimental upper limits.

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ZHANG Zhi-Qing and XIAO Zhen-Jun. B→f0(980) (π,η(′)) decays in the PQCD approach[J]. Chinese Physics C, 2009, 33(7): 508-515. doi: 10.1088/1674-1137/33/7/002
ZHANG Zhi-Qing and XIAO Zhen-Jun. B→f0(980) (π,η(′)) decays in the PQCD approach[J]. Chinese Physics C, 2009, 33(7): 508-515.  doi: 10.1088/1674-1137/33/7/002 shu
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Received: 2008-10-31
Revised: 2008-12-12
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B→f0(980) (π,η(′)) decays in the PQCD approach

    Corresponding author: XIAO Zhen-Jun,
  • Received Date: 2008-10-31
  • Accepted Date: 2008-12-12
  • Available Online: 2009-07-05

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)π－)~2.5×10－6, Br(B0→f0(980)π0)~2.6×10－7, Br(B0→f0(980)η)~2.5×10－7 and Br(B0→f0(980)η′)~6.7×10－7, which are consistent with both the QCD factorization predictions and the experimental upper limits.

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