SU(5) grand unification in pure gravity mediation
SU(5) grand unification in pure gravity mediation
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DOI：
10.1103/physrevd.91.055027
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发表时间：
2015-01
影响因子：
5
通讯作者：
J. Evans;N. Nagata;K. Olive
中科院分区：
文献类型：
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作者：
J. Evans;N. Nagata;K. Olive
我们讨论具有非通用希格斯软质量的纯重力介导模型中的质子寿命。纯引力中介为研究具有分裂超对称性（如光谱）的 SU(5) 大统一理论提供了一个简单的框架。我们发现，对于许多参数来说，空间规范耦合统一非常好，导致质子的寿命相当长。然而，对于 m3/2 ∼ 60 TeV 和 tan� ∼ 4，规范耦合统一性也很好，质子寿命足够短，可以在未来的实验中实现。
We discuss the proton lifetime in pure gravity mediation models with nonuniversal Higgs soft masses. Pure gravity mediation offers a simple framework for studying SU(5) grand unified theories with a split supersymmetry like spectra. We find that for much of the parameter space gauge coupling unification is quite good leading to rather long lifetimes for the proton. However, for m3/2 ∼ 60 TeV and tan� ∼ 4, for which gauge coupling unification is also good, the proton lifetime is short enough that it could be in reach of future experiments.