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arXiv 1107.4697hep-phhep-th
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低尺度强动力学的畸变MSSM Higgs扇区

A Distorted MSSM Higgs Sector from Low-Scale Strong Dynamics

Tony Gherghetta, Alex Pomarol

摘要:

我们表明,当超对称性被打破在TeV尺度的强动力学,希格斯部门的MSSM可以大大修改。这是由于希格斯粒子与强磁区共振的可能大规模混合。特别是最轻的希格斯玻色子的质量可以明显高于MSSM的束缚(~130 GeV)。此外,只有一个希格斯二重态是严格必要的,因为汤川耦合可以有一个非常不同的结构相比,MSSM。使用AdS/CFT对应电弱精密可观测量可以计算和实验界限以下。产生超粒子质量的最自然的方法是通过与复合态混合。这使得高金诺和希格斯诺很容易获得200 GeV左右的狄拉克质量,而标量质量可以从额外的D项或通过与强耦合态的混合产生。最后,这些场景中最有趣的预测之一是希格斯玻色子衰变为非常轻的引力子(~ 10^{-4} eV)和希格斯诺的相当大的衰变宽度。

英文摘要:

We show that when supersymmetry is broken at the TeV scale by strong dynamics, the Higgs sector of the MSSM can be drastically modified. This arises from possible sizeable mixings of the Higgs with the resonances of the strong sector. In particular the mass of the lightest Higgs boson can be significantly above the MSSM bound (~130 GeV). Furthermore only one Higgs doublet is strictly necessary, because the Yukawa couplings can have a very different structure compared to the MSSM. Using the AdS/CFT correspondence electroweak precision observables can be calculated and shown to be below experimental bounds. The most natural way to generate sparticle masses is through mixing with the composite states. This causes the gauginos and Higgsinos to easily obtain Dirac masses around 200 GeV, while scalar masses can be generated either from extra D-terms or also through mixing with the strongly-coupled states. Finally one of the most interesting predictions of these scenarios is the sizeable decay width of the Higgs boson into a very light gravitino (~ 10^{-4} eV) and a Higgsino.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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