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Electroweak radiative corrections to $e^+e^- \to t \bar{t} h$ at linear colliders

You Yu·Ma Wen-Gan·Chen Hui·Zhang Ren-You·Sun Yan-Bin·Hou Hong-Sheng
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Abstract

We calculate the ${\cal O}(α_{\rm ew})$ electroweak radiative corrections to $e^+ e^- \to t \bar{t} h$ at a electron-positron linear collider (LC) in the standard model. We analyze the dependence of the ${\cal O}(α_{\rm ew})$ corrections on the Higgs boson mass $m_{h}$ and colliding energy $\sqrt{s}$, and find that the corrections significantly decrease or increase the Born cross section depending on the colliding energy. The numerical results show that the ${\cal O}(α_{\rm ew})$ relative correction is strongly related to the Higgs boson mass when $\sqrt{s}=500 GeV$, and for $m_h = 150 GeV$ the relative correction ranges from -31.3% to 2.3% as the increment of the colliding energy from 500 GeV to 2 TeV.

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You Yu, Ma Wen-Gan, Chen Hui, Zhang Ren-You, Sun Yan-Bin, Hou Hong-Sheng. 2003-07-29. Electroweak radiative corrections to $e^+e^- \to t \bar{t} h$ at linear colliders. https://doi.org/10.1016/j.physletb.2003.07.064

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