来自Sgoldstino混合的亲光Higgs
Photophilic Higgs from sgoldstino mixing
摘要：
线性实现的N=1超对称性的自发破缺意味着存在一个伪戈德斯通费米子（goldstino）及其复杂的标量超伙伴（sgoldstino）。后者一般具有相当大的树级耦合到标准模型规范玻色子，而其耦合到SM费米子被抑制。我们考虑一个轻sgoldstino，质量约为1 TeV，与一个SM类希格斯标量混合在125 GeV左右。我们表明，这样的混合可以提高希格斯双光子信号率，同时逃避所有相关的实验界限，而不会显着影响其他衰变通道。
英文摘要：
The spontaneous breaking of linearly realized N=1 supersymmetry implies the existence of a pseudo-Goldstone fermion, the goldstino, and of its complex scalar superpartner, the sgoldstino. The latter has generically sizable tree-level couplings to Standard Model gauge bosons while its couplings to SM fermions are suppressed. We consider a light sgoldstino, with a mass around 1 TeV, that mixes with a SM-like Higgs scalar at around 125 GeV. We show that such a mixing can enhance the Higgs to di-photon signal rate while evading all the relevant experimental bounds and without significantly affecting the other decay channels.
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