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arXiv 1001.3147hep-ph
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提升超对称希格斯区

Uplifted supersymmetric Higgs region

Bogdan A. Dobrescu, Patrick J. Fox

摘要:

我们表明,最小超对称标准模型的参数空间包括一个区域,在该区域中,下型费米子质量产生的环诱导耦合到上型希格斯偶线。在这个区域中,下型希格斯偶态在树水平上没有获得真空期望值,并且在超势中与τ轻子和底夸克有相当大的耦合。除了轻的标准希格斯玻色子外,希格斯谱还包括重的自旋为0的二重态的近简并态,它可以通过与$b$夸克的耦合产生,并主要衰变为τ^+τ^-或τν。

英文摘要:

We show that the parameter space of the Minimal Supersymmetric Standard Model includes a region where the down-type fermion masses are generated by the loop-induced couplings to the up-type Higgs doublet. In this region the down-type Higgs doublet does not acquire a vacuum expectation value at tree level, and has sizable couplings in the superpotential to the tau leptons and bottom quarks. Besides a light standard-like Higgs boson, the Higgs spectrum includes the nearly degenerate states of a heavy spin-0 doublet which can be produced through their couplings to the $b$ quark and decay predominantly into τ^+τ^- or τν.

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