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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1312.7641hep-ph
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三重态模型中Higgs耦合的辐射修正

Radiative corrections to the Higgs couplings in the triplet model

Mariko Kikuchi

摘要:

扩展的Higgs模型的特征可以表现为类SM希格斯玻色子($h$)的耦合常数偏离标准模型(SM)预测的模式。因此,我们可以通过精确测量$h$耦合常数的偏差模式来区分扩展的希格斯模型,即使没有直接发现额外的玻色子。为了将理论预测与ILC未来的精确数据进行比较,我们必须在各种扩展的Higgs模型中评估辐射修正的理论预测。在这个演讲中,我们给出了我们的最小Higgs三重态模型(HTM)中的各种希格斯玻色子耦合$h$的辐射修正的全面研究。首先,我们在模型中定义了重整化条件,并在单圈水平上计算了Higgs耦合、$gγγ, hWW, hZZ$和$hhh$。然后,我们评估的SM-样希格斯玻色子的耦合常数从SM中的预测偏差。我们发现,这些耦合的单回路的贡献是相当大的相比,他们预期的测量精度在ILC。因此,通过比较希格斯玻色子耦合的偏离模式,有可能将HTM与其他模型区分开来。

英文摘要:

The feature of extended Higgs models can appear in the pattern of deviations from the Standard Model (SM) predictions in coupling constants of the SM-like Higgs boson ($h$). We can thus discriminate extended Higgs models by precisely measuring the pattern of deviations in the coupling constants of $h$, even when extra bosons are not found directly. In order to compare the theoretical predictions to the future precision data at the ILC, we must evaluate the theoretical predictions with radiative corrections in various extended Higgs models. In this talk, we give our comprehensive study for radiative corrections to various Higgs boson couplings of $h$ in the minimal Higgs triplet model (HTM). First, we define renormalization conditions in the model, and we calculate the Higgs coupling; $gγγ, hWW, hZZ$ and $hhh$ at the one loop level. We then evaluate deviations in coupling constants of the SM-like Higgs boson from the predictions in the SM. We find that one-loop contributions to these couplings are substantial as compared to their expected measurement accuracies at the ILC. Therefore the HTM has a possibility to be distinguished from the other models by comparing the pattern of deviations in the Higgs boson couplings.

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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