On the Resonance Coupling and Width in Quantum Field Theory
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918167292411904 |
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| author | Melikhov, Dmitri |
| author_facet | Melikhov, Dmitri |
| contents | In quantum field theory, characteristics of resonances are related to self-energy diagrams, which are ultra-violet divergent and require renormalization. We demonstrate the proper way to define the resonance coupling $g_M$ such that the resonance properties calculated in quantum field theory are finite and scheme-independent quantities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_20488 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On the Resonance Coupling and Width in Quantum Field Theory Melikhov, Dmitri High Energy Physics - Phenomenology In quantum field theory, characteristics of resonances are related to self-energy diagrams, which are ultra-violet divergent and require renormalization. We demonstrate the proper way to define the resonance coupling $g_M$ such that the resonance properties calculated in quantum field theory are finite and scheme-independent quantities. |
| title | On the Resonance Coupling and Width in Quantum Field Theory |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.20488 |