Ward-Takahashi Identity in Denominator Regularization at One Loop
Fuente:
arXiv
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866917263358033920 |
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| author | Razanaparany, Mickaya A. |
| author_facet | Razanaparany, Mickaya A. |
| contents | Explicit analytic expressions for the electron self-energy and the vertex correction in quantum electrodynamics are derived at one loop using the recently proposed regularization scheme known as denominator regularization, assisted by its correspondence with dimensional regularization to determine the coefficient functions, which are a specific ingredient of this approach. We then show that the regularized amplitudes satisfy the Ward-Takahashi identity, thereby ensuring that gauge symmetry is preserved after regularization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_09418 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Ward-Takahashi Identity in Denominator Regularization at One Loop Razanaparany, Mickaya A. High Energy Physics - Phenomenology Explicit analytic expressions for the electron self-energy and the vertex correction in quantum electrodynamics are derived at one loop using the recently proposed regularization scheme known as denominator regularization, assisted by its correspondence with dimensional regularization to determine the coefficient functions, which are a specific ingredient of this approach. We then show that the regularized amplitudes satisfy the Ward-Takahashi identity, thereby ensuring that gauge symmetry is preserved after regularization. |
| title | Ward-Takahashi Identity in Denominator Regularization at One Loop |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2602.09418 |