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

2023/05/06 by Khiem Hong Phan, Phan, Khiem Hong, Dzung Tri Tran +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2305.04009

openalex publication_date 2023/05/06 · openalex created_date 2023/05/10 · openalex updated_date 2026/07/28

Abstract

We present analytic results for one-loop radiative corrections to off-shell decay H^* → W⁺W^- in 't Hooft-Veltman gauge within 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 total decay rates. Furthermore, we study the impacts of one-loop radiative corrections to off-shell decay H^* → W⁺W^- in Higgs processes at future colliders. The signal processes such as e^-e⁺→ ZH^*→ Z(WW) with including the initial beam polarizations and e^-e⁺→ ν_eν_e H^* → ν_eν_e (WW) and e^-γ→ e^-H^* → 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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