期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 10, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP10(2018)135
关键词
CP violation; GUT; Neutrino Physics; Quark Masses and SM Parameters
资金
- U.S. Department of Energy [de-sc0016013]
- Slovenian Research Agency [P1-0035]
- Fermilab Distinguished Scholar program
Supersymmetric SO(10) models with Yukawa coupling matrices involving only a 10(H) and a of Higgs fields can lead to a predictive and consistent scenario for fermion masses and mixings, including the neutrino sector. However, when coupled minimally to a symmetry breaking sector that includes a 210(H) and a 126(H), these models lead either to an unacceptably small neutrino mass scale, or to non-perturbative values of the gauge couplings. Here we show that with the addition of a 54(H) to the symmetry breaking sector, the successful predictions of these models for fermion masses and mixings can be maintained. The 54(H) enables a reduction of the B - L symmetry breaking scale to an intermediate value of order 10(12) GeV, consistent with the observed neutrino mass spectrum, while preserving perturbative gauge coupling unification. We obtain an excellent fit to all fermion masses and mixings in this framework. We analyze carefully the prediction of the model for CP violation in neutrino oscillations. Consistency with proton lifetime, however, requires a mini-split SUSY spectrum with the squarks and sleptons having masses of order 100 TeV, accompanied by TeV scale gauginos and Higgsinos. Such a spectrum may arise from pure gravity mediation, which would predict the partial lifetime for the decay to be an order of magnitude above the current experimental limit.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据