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arXiv 1012.1201hep-phhep-ex
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次极小超对称标准模型中双光子Higgs信号的增强

Enhanced di-photon Higgs signal in the Next-to-Minimal Supersymmetric Standard Model

Ulrich Ellwanger

摘要:

在次最小超对称标准模型中,CP偶希格斯玻色子玻色子的质量可以在80-110 GeV之间,这与LEP的限制是一致的,因为它们有相当大的单态分量。尽管如此,由于与b夸克的耦合减少,它们分成两个光子的分支比可以比类似质量的标准模型希格斯玻色子大10倍。这可能导致强子对撞机双光子通道中希格斯粒子信号速率的惊人增强,增强了6倍。相应的情况下,可以发生在次最小超对称标准模型的相对较低的苏西破缺尺度。

英文摘要:

In the Next-to-Minimal Supersymmetric Standard Model, CP-even Higgs bosons can have masses in the range of 80-110 GeV in agreement with constraints from LEP due to their sizeable singlet component. Nevertheless their branching ratio into two photons can be 10 times larger than the one of a Standard Model Higgs boson of similar mass due to a reduced coupling to b quarks. This can lead to a spectacular enhancement of the Higgs signal rate in the di-photon channel at hadron colliders by a factor 6. Corresponding scenarios can occur in the Next-to-Minimal Supersymmetric Standard Model for a relatively low Susy breaking scale.

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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