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arXiv 1206.5853hep-phhep-ex
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矢量玻色子融合中125 GeV玻色子模型的区分

Distinguishing Various Models of the 125 GeV Boson in Vector Boson Fusion

Jung Chang, Kingman Cheung, Po-Yan Tseng, Tzu-Chiang Yuan

摘要:

在LHC中,通过双光子的衰变模式和其他一些模式,一种大约125 GeV的新粒子的暗示可能指向相当多的可能性。虽然在大型强子对撞机中,标准模型和其他一些扩展的希格斯玻色子的主要产生机制是通过胶子融合过程,但另一种矢量玻色子融合对规范-希格斯耦合的电弱对称性破缺更敏感,因此可以用来探测标准模型之外的模型。在这项工作中,使用众所周知的dijet标记技术,挑选出的矢量玻色子融合机制,我们调查它的能力,以区分一些模型,已建议给一个增强的包容性的双光子产生率,包括标准模型希格斯玻色子,疏费米希格斯玻色子,兰德尔Sundrum radion,惰性希格斯双重模型,两个希格斯双重模型,和MSSM。矢量玻色子融合中的速率可以提供更多的底层模型信息,以帮助区分模型。

英文摘要:

The hint of a new particle around 125 GeV at the LHC through the decay modes of diphoton and a number of others may point to quite a number of possibilities. While at the LHC the dominant production mechanism for the Higgs boson of the standard model and some other extensions is via the gluon fusion process, the alternative vector boson fusion is more sensitive to electroweak symmetry breaking through the gauge-Higgs couplings and therefore can be used to probe for models beyond the standard model. In this work, using the well known dijet-tagging technique to single out the vector boson fusion mechanism, we investigate its capability to discriminate a number of models that have been suggested to give an enhanced inclusive diphoton production rate, including the standard model Higgs boson, fermiophobic Higgs boson, Randall-Sundrum radion, inert-Higgs-doublet model, two-Higgs-doublet model, and the MSSM. The rates in vector-boson fusion can give more information of the underlying models to help distinguishing among the models.

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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