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

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Author(s):
Eboli, O. J. P. ; Gonzalez-Garcia, M. C. ; Martines, Matheus
Total Authors: 3
Document type: Journal article
Source: PHYSICAL REVIEW D; v. 109, n. 3, p. 10-pg., 2024-02-15.
Abstract

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)

FAPESP's process: 22/11293-8 - Search for Physics beyond the standard model
Grantee:Matheus Martines de Azevedo da Silva
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 19/04837-9 - Particle Physics Phenomenology
Grantee:Gustavo Alberto Burdman
Support Opportunities: Research Projects - Thematic Grants