Positivity and partial wave unitarity bounds on ALP theories via amplitude methods
Fuente:
arXiv
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866914096037756928 |
|---|---|
| author | Bresciani, Luigi C. Levati, Gabriele Paradisi, Paride |
| author_facet | Bresciani, Luigi C. Levati, Gabriele Paradisi, Paride |
| contents | We derive the complete set of partial wave unitarity bounds on the most general Axion-Like Particle (ALP) effective interactions up to dimension 8 in the limit of large center-of-mass energy. Exploiting a recently developed formalism based on spinor-helicity techniques, we discuss the unitarity bounds for $N \to M$ (with $N, M \geq 2$) scattering amplitudes that can be relevant for ALP searches at colliders or in a variety of rare processes. Moreover, we compute positivity bounds on ALP interactions, emphasizing their complementarity with partial wave unitarity bounds. As a byproduct, we show that our results can be used to infer new positivity constraints in the Standard Model Effective Field Theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_13953 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Positivity and partial wave unitarity bounds on ALP theories via amplitude methods Bresciani, Luigi C. Levati, Gabriele Paradisi, Paride High Energy Physics - Phenomenology We derive the complete set of partial wave unitarity bounds on the most general Axion-Like Particle (ALP) effective interactions up to dimension 8 in the limit of large center-of-mass energy. Exploiting a recently developed formalism based on spinor-helicity techniques, we discuss the unitarity bounds for $N \to M$ (with $N, M \geq 2$) scattering amplitudes that can be relevant for ALP searches at colliders or in a variety of rare processes. Moreover, we compute positivity bounds on ALP interactions, emphasizing their complementarity with partial wave unitarity bounds. As a byproduct, we show that our results can be used to infer new positivity constraints in the Standard Model Effective Field Theory. |
| title | Positivity and partial wave unitarity bounds on ALP theories via amplitude methods |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.13953 |