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arXiv 2009.03250hep-ph
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惰性Higgs双重态模型中$e^+ e^-\to Zh^0/H^0A^0$的单圈辐射修正

One-loop radiative corrections to $e^+ e^-\to Zh^0/H^0A^0$ in the Inert Higgs Doublet Model

Hamza Abouabid, Abdesslam Arhrib, Rachid Benbrik, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan

摘要:

本文计算了惰性Higgs双重态模型(IHDM)中两个过程$e^{+}e^{-}\to Z h^0,H^0 A^{0}$的全单圈辐射修正(包括弱修正和QED修正)。对于$O(α_{w})$和$O(α_{em})$阶,我们分别使用FeynArts/FormCalc计算单圈虚修正和费曼图计算(FDC)来计算真实发射。在这些计算工具的支持下,我们研究了未来正负电子对撞机三种典型碰撞能量(250 GeV、500 GeV和1000 GeV)的简并和非简并情形下新物理的辐射修正.通过扫描IHDM的参数空间,从理论和实验两方面确定了与约束和边界一致的允许区域。我们发现IHDM对$e^+ e^- \to Z h^0$的辐射修正可以是相当大的,并且在未来希格斯工厂的探测潜力之内。我们还发现,IHDM的新物理也可以直接检测通过观察过程$e^{+}e^{-}\to H^0 A^{0} $,可以有足够大的生产率。我们提出了五个基准点,并检查其显着的特点,可以作为未来的电子-正电子对撞机,如CEPC/CLIC/FCC-ee/ILC以及LHC的物理目标。

英文摘要:

We compute the full one-loop radiative corrections (including both weak and QED corrections) for two processes $e^{+}e^{-}\to Z h^0,H^0 A^{0}$ in the Inert Higgs Doublet model (IHDM). Up to $O(α_{w})$ and $O(α_{em})$ order, we use FeynArts/FormCalc to compute the one-loop virtual corrections and Feynman Diagram Calculation (FDC) to evaluate the real emission, respectively. Being equipped with these computing tools, we investigate radiative corrections of new physics for both the degenerate and non-degenerate scenarios with three typical collision energies of future electron-positron colliders: 250 GeV, 500 GeV, and 1000GeV. By scanning the parameter space of IHDM, we identify the allowed regions which are consistent with constraints and bounds, from both theoretical and experimental sides. We find that the radiative corrections of the IHDM to $e^+ e^- \to Z h^0$ can be sizeable and are within the detection potentials of future Higgs factories. We also find that the new physics of IHDM could also be directly detected by observing the process $e^{+}e^{-}\to H^0 A^{0} $ which could have large enough production rate. We propose five benchmark points and examine their salient features which can serve as physics targets for future electron-positron colliders, such as CEPC/CLIC/FCC-ee/ILC as well as for LHC.

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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