One-loop off-shell decay $H^* \rightarrow ZZ$ at future colliders

Khiem Hong Phan; Dzung Tri Tran; Anh Thu Nguyen

doi:10.15625/0868-3166/18088

One-loop off-shell decay $H^* \rightarrow ZZ$ at future colliders

Khiem Hong Phan, Dzung Tri Tran, Anh Thu Nguyen

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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
Dzung 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/10.15625/0868-3166/18088

Abstract

We present one-loop formulas for contributing to the $HZZ$ vertex in 't Hooft-Veltman gauge within Standard Model framework. One-loop off-shell Higgs decay rates to $Z$ -pair are investigated in both unpolarized and longitudinal polarization for $Z$ bosons in final state. The corrections are range of $7\%$ to 8.4% when we vary the off-shell Higgs mass from 200 GeV to $500$ GeV. In applications, we study off-shell Higgs decay $H^* \rightarrow ZZ$ in the Higgs productions at future colliders such as the signal processes $\gamma^*(Q^2)\gamma \rightarrow H^* \rightarrow ZZ$ and $e^-\gamma \rightarrow e^-H^* \rightarrow e^- ZZ$ are analyzed.

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Our work relates to the following paper : D. T. Tran and K. H. Phan, [arXiv:2211.15116 [hep-ph]]

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Published

28-06-2023

How to Cite

[1]

K. H. Phan, D. T. Tran, and A. T. Nguyen, “One-loop off-shell decay

H^{*} \to Z Z

$H^* \rightarrow ZZ$ at future colliders”, Comm. Phys., vol. 33, no. 4, p. 369, Jun. 2023.

IEEE

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Vol. 33 No. 4 (2023)

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Papers

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