Higgs Phenomenology of Scalar Sequestering
Higgs Phenomenology of Scalar Sequestering
复制标题
标量隔离的希格斯现象学
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Ji
中科院分区：
文献类型：
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作者：
H. Kim;Ji
MSSM中的轻Higgs质量受到很大的约束，被预测接近于MZ，这导致了114 GeV的LEP II Higgs质量束缚与MSSM中自然的电弱对称性破缺之间的张力。通常增加轻CP甚至Higgs质量的方法是增加上型Higgs的四次耦合。我们指出，轻希格斯质量可以通过减少非对角项的质量矩阵时，tan β是中等的，这是大约5至10。结果，没有混合和/或出现相反符号的希格斯混合角，希格斯衰变的分支比急剧变化。这是可能的标量隔离的情况下，其中μ参数可以是大的独立的电弱对称性破缺。我们也讨论了同样的效果在BMSSM。
The light Higgs mass in the MSSM is highly constrained and is predicted to be close to M_Z which causes a tension between the LEP II Higgs mass bound 114 GeV and the natural electroweak symmetry breaking in the MSSM. The usual way to increase the light CP even Higgs mass was to increase the quartic coupling of the up type Higgs. We point out that the light Higgs mass can be increased by reducing the off-diagonal term in the mass matrix when tan beta is moderate, which is about 5 to 10. As a result no mixing and/or a Higgs mixing angle of the opposite sign arises and the branching ratio of Higgs decay is drastically changed. This is possible in scalar sequestering scenario in which mu parameter can be large independently of the electroweak symmetry breaking. We also discuss the same effect in the BMSSM.