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

Khiem Hong Phan, Dzung 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
  • 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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References

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

Issue

Vol. 33 No. 4 (2023)

Section

Papers

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