Grand unification in high-scale supersymmetry
Grand unification in high-scale supersymmetry
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DOI：
10.1016/j.physletb.2013.05.017
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发表时间：
2013-04
影响因子：
4.4
通讯作者：
J. Hisano;Takumi Kuwahara;N. Nagata
中科院分区：
文献类型：
--
作者：
J. Hisano;Takumi Kuwahara;N. Nagata
在大统一（GUT）尺度下，由高尺度超对称情况下的规范耦合统一得到了超重规范和Higgs多重态质量的一个约束。我们发现所有的粒子都可能位于1016GeV的尺度附近，因此在GUT尺度下对规范耦合常数的阈值修正小于低能超对称的情况。此外，当高金诺较重时，大统一理论的标度往往会略低，因此，通过X玻色子交换过程的质子衰变率预计会提高。
A constraint on masses of superheavy gauge and Higgs multiplets at the grand unification (GUT) scale is obtained from the gauge coupling unification in the case of high-scale supersymmetry. We found that all of the particles may lie around a scale of 1016GeV so that the threshold corrections to the gauge coupling constants at the GUT scale are smaller than those in the case of the low-energy supersymmetry. In addition, the GUT scale tends to be slightly lower when the gauginos are heavier and, thus, the proton decay rate via the X-boson exchange process is expected to be enhanced.