One-loop Form Factors for \(H\rightarrow \gamma^*\gamma^*\) in \(R_{\xi}\) Gauge | Zendy

Khiem Hong Phan | Zendy; Dzung Tri Tran | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

One-loop Form Factors for \(H\rightarrow \gamma^*\gamma^*\) in \(R_{\xi}\) Gauge

Author(s) -

Khiem Hong Phan,

Dzung Tri Tran

Publication year - 2021

Publication title -

communications in physics

Language(s) - English

Resource type - Journals

eISSN - 2815-5947

pISSN - 0868-3166

DOI - 10.15625/0868-3166/16022

Subject(s) - physics , scalar (mathematics) , loop (graph theory) , photon , shell (structure) , gauge (firearms) , standard model (mathematical formulation) , computation , feynman graph , particle physics , mathematical physics , quantum mechanics , combinatorics , mathematics , algorithm , geometry , materials science , archaeology , composite material , history

In this paper, we present general one-loop form factors for \(H\rightarrow \gamma^* \gamma^*\) in \(R_{\xi}\) gauge, considering all cases of two on-shell, one on-shell and two off-shell for final photons. The calculations are performed in standard model and in arbitrary beyond the standard models which charged scalar particles may be exchanged in one-loop diagrams. Analytic results for the form factors are shown in general forms which are expressed in terms of the Passarino-Veltman functions. We also confirm the results in previous computations which are available for the case of two on-shell photons. The \(\xi\)-independent of the result is also discussed. We find that numerical results are good stability with varying \(\xi=0,1\) and \(\xi\rightarrow \infty\).

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research