arXiv 1402.49182014-02-20hep-ph

分裂S费米子族、汤川统一和μ g-2

Split Sfermion Families, Yukawa Unification and Muon g-2

M. Adeel Ajaib, Ilia Gogoladze, Qaisar Shafi, Cem Salih Un

备注：: 19 pages, 6 figures, 2 tables

摘要：

在M_{\rm GUT}上考虑了两类不同的具有非普适和普适软超对称破缺（SSB）的Yukawa统一超对称SO（10）模型。在这两种情况下，我们假设在M_{\rm GUT}的第三族SSB的sfermion质量是不同于相应的sfermion质量的前两个家庭（这是相等的）。对于在M_{\rm GUT}上具有任意（非普适）质量的SO（10）模型，t-b-τYukawa耦合统一与125 GeV的希格斯玻色子质量、WMAP遗迹暗物质密度以及μ子g-2异常的分辨率是相容的。在这种情况下，所有的有色超粒子都很重，大约在5 TeV以上，但是slepton（smuon和stau）可以很轻，大约在200 GeV左右。对于具有普适的Gaugino质量和NUHM 2边界条件的SO（10）模型，μ子g-2反常不能被解决.然而，这类模型中的胶子并不太重，只有\lesssim 3 TeV，因此可能在大型强子对撞机中找到。

英文摘要：

We consider two distinct classes of Yukawa unified supersymmetric SO(10) models with non-universal and universal soft supersymmetry breaking (SSB) gaugino masses at M_{\rm GUT}. In both cases, we assume that the third family SSB sfermion masses at M_{\rm GUT} are different from the corresponding sfermion masses of the first two families (which are equal). For the SO(10) model with essentially arbitrary (non-universal) gaugino masses at M_{\rm GUT}, it is shown that t-b-τYukawa coupling unification is compatible, among other things, with the 125 GeV Higgs boson mass, the WMAP relic dark matter density, and with the resolution of the apparent muon g-2 anomaly. The colored sparticles in this case all turn out to be quite heavy, of order 5 TeV or more, but the sleptons (smuon and stau) can be very light, of order 200 GeV or so. For the SO(10) model with universal gaugino masses and NUHM2 boundary conditions, the muon g-2 anomaly cannot be resolved. However, the gluino in this class of models is not too heavy, \lesssim 3 TeV, and therefore may be found at the LHC.

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