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Bounds on quartic gauge couplings in HEFT from electroweak gauge boson pair production at the LHC

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Autor(es):
Eboli, O. J. P. ; Gonzalez-Garcia, M. C. ; Martines, Matheus
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: PHYSICAL REVIEW D; v. 109, n. 3, p. 10-pg., 2024-02-15.
Resumo

Precision measurements of anomalous quartic couplings of electroweak gauge bosons allow us to search for deviations of the Standard Model predictions and signals of new physics. Here, we obtain the constraints on anomalous quartic gauge couplings using the presently available data on the production of gauge-boson pairs via vector boson fusion. We work in the Higgs effective theory framework and obtain the present bounds on the operator's Wilson coefficients. We show that the combination of different datasets breaks the degeneracies in analysis with more than one nonvanishing Wilson coefficient. Anomalous quartic gauge boson couplings lead to rapidly growing cross sections and we discuss the impact of a unitarization procedure on the attainable limits. (AU)

Processo FAPESP: 22/11293-8 - Procura de Física além do modelo padrão
Beneficiário:Matheus Martines de Azevedo da Silva
Modalidade de apoio: Bolsas no Brasil - Doutorado
Processo FAPESP: 19/04837-9 - Fenomenologia de partículas
Beneficiário:Gustavo Alberto Burdman
Modalidade de apoio: Auxílio à Pesquisa - Temático