Two-loop Vertices with Vacuum Polarization Insertion
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866913204612890624 |
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| author | Ahmed, Taushif Crisanti, Giulio Gasparotto, Federico Hasan, Syed Mehedi Mastrolia, Pierpaolo |
| author_facet | Ahmed, Taushif Crisanti, Giulio Gasparotto, Federico Hasan, Syed Mehedi Mastrolia, Pierpaolo |
| contents | We present the analytic evaluation of the second-order corrections to the massive form factors, due to two-loop vertex diagrams with a vacuum polarization insertion, with exact dependence on the external and internal fermion masses, and on the squared momentum transfer. We consider vector, axial-vector, scalar and pseudoscalar interactions between the external fermion and the external field. After renormalization, the finite expressions of the form factors are expressed in terms of polylogarithms up to weight three. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_05028 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Two-loop Vertices with Vacuum Polarization Insertion Ahmed, Taushif Crisanti, Giulio Gasparotto, Federico Hasan, Syed Mehedi Mastrolia, Pierpaolo High Energy Physics - Phenomenology High Energy Physics - Theory We present the analytic evaluation of the second-order corrections to the massive form factors, due to two-loop vertex diagrams with a vacuum polarization insertion, with exact dependence on the external and internal fermion masses, and on the squared momentum transfer. We consider vector, axial-vector, scalar and pseudoscalar interactions between the external fermion and the external field. After renormalization, the finite expressions of the form factors are expressed in terms of polylogarithms up to weight three. |
| title | Two-loop Vertices with Vacuum Polarization Insertion |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2308.05028 |