Visible supersymmetry breaking and an invisible Higgs
Visible supersymmetry breaking and an invisible Higgs
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DOI：
10.1007/jhep04(2012)130
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发表时间：
2011-11
影响因子：
5.4
通讯作者：
D. Bertolini;Keith R. Rehermann;J. Thaler
中科院分区：
文献类型：
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作者：
D. Bertolini;Keith R. Rehermann;J. Thaler
如果存在多个独立破坏超对称性的隐藏扇区，则光谱将包含多个 Goldstini。在本文中，我们探讨了可见区域也可能打破超对称性，从而产生额外的伪金斯蒂诺的可能性。根据标准知识，可见扇区超对称破缺在现象学上被超迹求和规则排除，但该和规则因多重超对称破缺而放宽。然而，我们发现可见扇区超对称破缺在现象学上仍然不受欢迎，不是因为总和规则，而是因为可见扇区伪金斯蒂诺在早期宇宙中普遍产生过多。避免这种宇宙学界限的一种方法是确保在超重力效应之前的可见区域中保留 R 对称性。这种 R 对称情况的一个关键预期是，希格斯玻色子将在大型强子对撞机上以不可见的方式显着衰变。
If there are multiple hidden sectors which independently break supersymmetry, then the spectrum will contain multiple goldstini. In this paper, we explore the possibility that the visible sector might also break supersymmetry, giving rise to an additional pseudo-goldstino. By the standard lore, visible sector supersymmetry breaking is phenomenologically excluded by the supertrace sum rule, but this sum rule is relaxed with multiple supersymmetry breaking. However, we find that visible sector supersymmetry breaking is still phenomenologically disfavored, not because of a sum rule, but because the visible sector pseudo-goldstino is generically overproduced in the early universe. A way to avoid this cosmological bound is to ensure that an R symmetry is preserved in the visible sector up to supergravity effects. A key expectation of this R-symmetric case is that the Higgs boson will dominantly decay invisibly at the LHC.