Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-11-25
Int.J.Mod.Phys.A23:3304-3308,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
Talk at 4th International Conference on Flavor Physics (ICFP 2007), Beijing, China, 24-28 Sep 2007
Scientific paper
10.1142/S0217751X0804202X
We discuss a left-right symmetric model with two Higgs bi-doublet and spontaneous P and CP violation. The flavor changing neutral currents is suppressed by assuming approximate global U(1) family symmetry. We calculate the constraints from neural K meson mass difference \Delta m_K and demonstrate that a right-handed gauge boson W_2 contribution in box-diagrams with mass around 600 GeV is allowed due to a negative interference with a light charged Higgs boson around 150 \sim 300 GeV. The W_2 contribution to \epsilon_K is suppressed from appropriate choice of additional CP phases appearing in the right-handed Cabbibo-Kobayashi-Maskawa(CKM) matrix. The model is found fully consistent with B^0 mass difference and the mixing-induced CP asymmetry measurements.
Wu Yue-Liang
Zhou Yu-Feng
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