arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1207.4835hep-phhep-ex
收藏

扩展希格斯扇区的独特信号

Exclusive Signals of an Extended Higgs Sector

Nathaniel Craig, Scott Thomas

摘要:

在各种类型的CP和味道保存两个Higgs二重态模型(2HDMs)的框架内,在LHC相对于标准模型(SM)的期望的标准Higgs搜索通道中的希格斯玻色子信号的幅度的预期进行了研究。不同类的2HDM中的类SM希格斯玻色子的信号可以根据希格斯耦合到大质量矢量玻色子、顶夸克、底夸克和τ轻子的一般四维空间的特定二维子空间来参数化。我们发现相当强的相关性之间的包容性双光子通道和排他性双光子和双τ通道从矢量玻色子融合或相关的生产。在这些通道中的一些通道中与SM期望的一阶偏差可以在各种类型的2HDM之间提供区分能力。排他性双光子与双tau通道的比率对偏离SM预期特别敏感。我们还强调,在标准希格斯粒子搜索通道中偏离SM期望值可能意味着在某些相同的通道中,特别是在双光子和双矢量玻色子通道中,存在非SM类希格斯玻色子的可观测信号。这里列出的结果为在2HDM的背景下解释标准希格斯粒子搜索通道提供了路线图。

英文摘要:

Expectations for the magnitude of Higgs boson signals in standard Higgs search channels at the LHC relative to Standard Model (SM) expectations are investigated within the framework of various types of CP and flavor conserving two Higgs doublet models (2HDMs). Signals of the SM-like Higgs boson in different classes of 2HDM may be parameterized in terms of particular two-dimensional sub-spaces of the general four-dimensional space of Higgs couplings to the massive vector bosons, top quark, bottom quark, and tau lepton. We find fairly strong correlations among the inclusive di-photon channel and the exclusive di-photon and di-tau channels from vector boson fusion or associated production. Order one deviations from SM expectations in some of these channels could provide discriminating power among various types of 2HDMs. The ratio of exclusive di-photon to di-tau channels is particularly sensitive to deviations from SM expectations. We also emphasize that deviations from SM expectations in standard Higgs search channels may imply observable signals of non-SM-like Higgs bosons in some of these same channels, in particular in di-photon and di-vector boson channels. The results cataloged here provide a roadmap for interpreting standard Higgs search channels in the context of 2HDMs.

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。

↑