One-loop formulas for off-shell decay \(H^* \rightarrow W^+W^-\) in 't Hooft-Veltman gauge and its applications

Khiem Hong Phan, Dung Tri Tran, Anh Thu Nguyen
Author affiliations

Authors

  • Khiem Hong Phan \(^1\)Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
    \(^2\)Faculty of Natural Sciences, Duy Tan University, Da Nang City 550000, Vietnam
  • Dung Tri Tran \(^1\)Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
    \(^2\)Faculty of Natural Sciences, Duy Tan University, Da Nang City 550000, Vietnam
  • Anh Thu Nguyen University of Science Ho Chi Minh City, 227 Nguyen Van Cu, District 5, Ho Chi Minh City, Vietnam

DOI:

https://doi.org/10.15625/0868-3166/18082

Keywords:

one-loop corrections, analytic methods for quantum field theory, dimensional regularization, Higgs phenomenology

Abstract

We present analytic results for one-loop radiative corrections to off-shell decay \(H^* \rightarrow W^+W^-\) in 't Hooft-Veltman gauge within the Standard Model framework. In numerical results, we show off-shell decay rate and its corrections with varying off-shell Higgs mass. The results show that the corrections are of 10% contributions to the total decay rates. Furthermore, we study the impacts of one-loop radiative corrections to the off-shell decay \(H^* \rightarrow W^+W^-\) in Higgs processes at future colliders. The signal processes such as \(e^-e^+\rightarrow ZH^*\rightarrow Z(WW)\) with including the initial beam polarizations and \(e^-e^+\rightarrow \nu_e\bar{\nu}_e H^* \rightarrow \nu_e\bar{\nu}_e (WW)\) and \(e^-\gamma \rightarrow e^-H^* \rightarrow e^-WW\) are examined. We find that the effects are visible impacts and these should be taken into account at future colliders.

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Published

28-06-2023

How to Cite

[1]
K. H. Phan, D. T. Tran, and A. T. Nguyen, “One-loop formulas for off-shell decay \(H^* \rightarrow W^+W^-\) in ’t Hooft-Veltman gauge and its applications”, Comm. Phys., vol. 33, no. 3, p. 235, Jun. 2023.

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Papers
Received 14-02-2023
Accepted 23-05-2023
Published 28-06-2023