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arXiv 1207.4599hep-ph
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从超越标准模型的物理学角度解释希格斯玻色子区的精确测试

Interpretation of precision tests in the Higgs sector in terms of physics beyond the Standard Model

Florian Bonnet, Toshihiko Ota, Michael Rauch, Walter Winter

摘要:

我们演示了如何测量的希格斯费米子和希格斯规范玻色子耦合可以被解释的物理超越标准模型在一个模型独立的方式。也就是说,我们描述了偏离标准模型的有效$d=6$运营商的希格斯场和规范场,假设新的物理可能只出现在希格斯部门和有效的运营商产生在树的水平。虽然有效算子系数一般是独立的,但在高能量下理论的完成将导致希格斯-费米子和希格斯-规范玻色子耦合之间的特定关联。我们表明,目前的测量这些耦合的树级新物理需要几个新的介质与不同的耦合之间的特定关系。在有效的理论和介质空间的新见解,可以预期从包容性$H \rightarrow ττ$和独家矢量玻色子融合主导的$H \rightarrow γγ$搜索通道,以及希格斯自耦合的测量,包括高阶耦合不存在于标准模型的改进测量。

英文摘要:

We demonstrate how the measurements of the Higgs-fermion and Higgs-gauge boson couplings can be interpreted in terms of physics beyond the Standard Model in a model-independent way. That is, we describe deviations from the Standard Model by effective $d=6$ operators made of Higgs fields and gauge fields, under the hypothesis that the new physics may show up in the Higgs sector only and the effective operators are generated at tree level. While the effective operator coefficients are independent in general, the completion of the theory at high energies will lead to specific correlations which will be recovered between Higgs-fermion and Higgs-gauge boson couplings. We demonstrate that the current measurement of these couplings in terms of tree-level new physics requires several new mediators with specific relationships among different couplings. New insights in the effective theory and mediator spaces can be expected for improved measurements from the inclusive $H \rightarrow ττ$ and the exclusive vector boson fusion-dominated $H \rightarrow γγ$ search channels, as well as the measurement of the Higgs self-couplings, including higher order couplings which do not exist in the Standard Model.

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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