SO(10) SUSY GUT for fermion masses:: Lepton flavor and CP violation

被引:37
|
作者
Dermisek, R. [1 ]
Harada, M.
Raby, S.
机构
[1] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA
[2] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
来源
PHYSICAL REVIEW D | 2006年 / 74卷 / 03期
关键词
D O I
10.1103/PhysRevD.74.035011
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We discuss the results of a global chi(2) analysis of a simple SO(10) supersymmetric grand unified theory (SUSY GUT) with D-3 family symmetry and low energy R parity. The model describes fermion mass matrices with 14 parameters and gives excellent fits to 20 observable masses and mixing angles in both quark and lepton sectors, giving six predictions. Bi-large neutrino mixing is obtained with hierarchical quark and lepton Yukawa matrices, thus avoiding the possibility of large lepton flavor violation. The model naturally predicts small 1-3 neutrino mixing, with sin theta(13)similar or equal to 0.05-0.06. In this paper we evaluate the predictions for the lepton flavor violating processes, mu -> e gamma, tau ->mu gamma and tau -> e gamma and also the electric dipole moment of the electron (d(e)), the muon, and the tau, assuming universal squark and slepton masses (m(16)) and a universal soft SUSY breaking A parameter (A(0)) at the GUT scale. We find Br(mu -> e gamma) is naturally below present bounds, but may be observable by MEG. Similarly, d(e) is below present bounds, but it is within the range of future experiments. We also give predictions for the light Higgs mass (using < emph type="5"> FeynHiggs). We find an upper bound given by m(h)<= 127 GeV, with an estimated +/- 3 GeV theoretical uncertainty. Finally we present predictions for SUSY particle masses in the favored region of parameter space.
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页数:12
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