Next-to-leading power jet functions in the small-mass limit in QED
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866929759534972928 |
|---|---|
| author | van Bijleveld, Robin Laenen, Eric Marinissen, Coenraad Vernazza, Leonardo Wang, Guoxing |
| author_facet | van Bijleveld, Robin Laenen, Eric Marinissen, Coenraad Vernazza, Leonardo Wang, Guoxing |
| contents | We investigate the factorization properties of the massive fermion form factor in QED, to next-to-leading power in the fermion mass, and up to two-loop order. For this purpose we define new jet functions that have multiple connections to the hard part as operator matrix elements, and compute them to second order in the coupling. We test our factorization formula using these new jet functions in a region-based analysis and find that factorization indeed holds. We address a number of subtle aspects such as rapidity regulators and external line corrections, and we find an interesting sequence of relations among the jet functions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_10810 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Next-to-leading power jet functions in the small-mass limit in QED van Bijleveld, Robin Laenen, Eric Marinissen, Coenraad Vernazza, Leonardo Wang, Guoxing High Energy Physics - Phenomenology We investigate the factorization properties of the massive fermion form factor in QED, to next-to-leading power in the fermion mass, and up to two-loop order. For this purpose we define new jet functions that have multiple connections to the hard part as operator matrix elements, and compute them to second order in the coupling. We test our factorization formula using these new jet functions in a region-based analysis and find that factorization indeed holds. We address a number of subtle aspects such as rapidity regulators and external line corrections, and we find an interesting sequence of relations among the jet functions. |
| title | Next-to-leading power jet functions in the small-mass limit in QED |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2503.10810 |