Unitarity constraints on ALP interactions

Autor(es)

Brivio, I ^[1] ; Eboli, O. J. P. ^[2] ; Gonzalez-Garcia, M. C. ^{[3, 4]}

Afiliação do(s) autor(es)

^[1] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg - Germany

^[2] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, SP - Brazil

^[3] SUNY Stony Brook, CN Yang Inst Theoret Phys, Stony Brook, NY 11794 - USA

^[4] Univ Barcelona, Inst Catalana Recerca & Estudis Avancats ICREA, Dept Estruct & Constituents Mat, 647 Diagonal, E-08028 Barcelona - Spain

• Tipo de documento: Artigo Científico
• Fonte: Physical Review D; v. 104, n. 3 AUG 27 2021.
• Citações Web of Science: 0

Resumo

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. (AU)

• Processo FAPESP: 19/04837-9 - Fenomenologia de partículas
• Beneficiário: Gustavo Alberto Burdman
• Modalidade de apoio: Auxílio à Pesquisa - Temático