The study of B→K(*)l+l- decays in family non-universal Z' models

Wei Chiang; LI Run-Hui

doi:10.1088/1674-1137/36/1/003

Chinese Physics C> 2012, Vol. 36> Issue(1) : 14-24 DOI: 10.1088/1674-1137/36/1/003

The study of B→K^(*)l⁺l^- decays in family non-universal Z' models

Wei Chiang ,
LI Run-Hui ,

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Abstract：
In a combined investigation of B→K^(*)l⁺l^- decays, constraints on the related couplings in family non-universal Z' models are derived. We find that within the allowed parameter space, the recently observed forward-backward asymmetry in the B→K^(*)l⁺l^- decay can be explained by flipping the signs of the Wilson coefficients C₉^eff and C₁₀. With the obtained constraints, we also calculate the branching ratio of the B_s→μ⁺μ^- decay. The upper bound of our prediction is nearly an order of magnitude smaller than the upper bound given by the CDF Collaboration recently.

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Wei Chiang, LI Run-Hui and The study of B→K^(*)l⁺l^- decays in family non-universal Z' models[J]. Chinese Physics C, 2012, 36(1): 14-24. doi: 10.1088/1674-1137/36/1/003

Wei Chiang, LI Run-Hui and The study of B→K^(*)l⁺l^- decays in family non-universal Z' models[J]. Chinese Physics C, 2012, 36(1): 14-24. doi: 10.1088/1674-1137/36/1/003 shu

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Received: 2011-04-14
Revised: 2011-06-20

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The study of B→K^(*)l⁺l^- decays in family non-universal Z' models

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