SU(3) symmetry analysis on the three body non-leptonic B meson decays
Xiao-Gang He1,2,3, Guan-Nan Li2*, Dong Xu1
1INPAC, SKLPPC and Department of Physics, Shanghai Jiao Tong University, Shanghai, China
2CTS, CASTS and Department of Physics, National Taiwan University, Taipei, Taiwan
3NCTS and Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
* presenting author:guan-nan li, email:lgn198741@126.com
The LHCb collaboration has reported evidence for non-zero CP asymmetries in charged B meson decays into three charged octed pseudoscalar mesons. The branching ratios for these decays have also been measured . We carried out a SU(3) analysis on these decays. The SU(3) predictions do not agree with the experimental data, so we studied how to including momentum dependent and also SU(3) breaking effects on these decays to explain the experimental data. Large SU(3) breaking effects are needed to explain the data. These analysis can be applied to other neutral B meson decays. We have done a systematical analysis on the B→PPP decays, and found that the realtions among several fully-symmetric B→PPP decay amplitudeds are immuned from SU(3) breaking effects and isospin breaking effects. Measurements for these relations can provide important information about B decays in the SM.


Keywords: B meson decays, SU(3) symmetry, fully-symmetric