Unitarity constraints on ALP interactions
We derive partial-wave unitarity constraints on gauge-invariant interactions of an axionlike particle up to dimension-6 from all allowed 2→2 scattering processes in the limit of large center-of-mass energy. We find that the strongest bounds stem from scattering amplitudes with one external axionlike...
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| Autori principali: | , , |
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| Natura: | Article (Journal) |
| Lingua: | inglese |
| Pubblicazione: |
27 August 2021
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| In: |
Physical review
Year: 2021, Volume: 104, Fascicolo: 3, Pages: 1-11 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.104.035027 |
| Accesso online: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.104.035027 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.104.035027 
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| Note sull'autore: | I. Brivio, O.J.P. Éboli, M.C. González-García |
| Riassunto: | We derive partial-wave unitarity constraints on gauge-invariant interactions of an axionlike particle up to dimension-6 from all allowed 2→2 scattering processes in the limit of large center-of-mass energy. We find that the strongest bounds stem from scattering amplitudes with one external axionlike particle and only apply to the coupling to a pair of SU(2)L gauge bosons. Couplings to U(1)Y and SU(3)C gauge bosons and to fermions are more loosely constrained. |
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| Descrizione del documento: | Gesehen am 05.11.2021 |
| Descrizione fisica: | Online Resource |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.104.035027 |