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arXiv · 1902.06029

Study of the $hγZ$ coupling using $e^+e^-\xrightarrow{}h γ$ at the ILC

Yumi Aoki·Keisuke Fujii·Sunghoon Jung·Junghwan Lee·Junping Tian·Hiroshi Yokoya
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Abstract

We study the $e^+e^-\to h γ$ process at the International Linear Collider (ILC) to probe new physics in the $hγZ$ coupling. The study is performed at a center of mass energy of 250 GeV and is based on the full simulation of the International Large Detector (ILD). The expected signal significance is found to be 0.53 $σ$ for an integrated luminosity of 2000 fb$^{-1}$ in the case of the standard model. The corresponding 95 $\%$ confidence level upper limit for the signal cross section is 1.08 fb for left-handed beam polarization.

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Yumi Aoki, Keisuke Fujii, Sunghoon Jung, Junghwan Lee, Junping Tian, Hiroshi Yokoya. 2019-02-16. Study of the $hγZ$ coupling using $e^+e^-\xrightarrow{}h γ$ at the ILC. https://arxiv.org/abs/1902.06029

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