CP violation in Bs mixing in the SUSY SU(5) GUT with right-handed neutrinos
CP violation in Bs mixing in the SUSY SU(5) GUT with right-handed neutrinos
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DOI：
10.1016/j.physletb.2008.10.011
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发表时间：
2008-05
影响因子：
4.4
通讯作者：
J. Hisano;Y. Shimizu
中科院分区：
文献类型：
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作者：
J. Hisano;Y. Shimizu
UTfit协作组最近宣布，Bsmixing振幅的CP相位[公式：见正文]与标准模型预测的偏差超过3σ。在这封信中，我们讨论了在具有右手中微子的超对称SU（5）基态统一模型（SUSY SU（5）GUT）中，对[公式：见正文]的大修正是可能的。在这里，我们假设超对称破缺项的超引力类边界条件。我们发现，UTfit协作组织得出的95%概率区域在该模型中是边缘的。
It is recently announced by the UTfit Collaboration that the CP phase of the Bsmixing amplitude, [Formula: see text] , deviates more than 3σ from the Standard Model prediction. In this Letter we discuss how large correction to [Formula: see text] is possible in the supersymmetric SU(5) ground unified model (SUSY SU(5) GUT) with right-handed neutrinos. Here, we assume the supergravity-like boundary condition for the SUSY-breaking terms. We found that the 95% probability region derived by the UTfit Collaboration is marginal in this model.