Anomalous quartic ZZgammagamma couplings in gamma-proton collision at the LHC

Abstract

We investigate the constraints on the anomalous quartic $ZZ\gamma \gamma$ couplings through the process $pp\to p\gamma p\to p\gamma qZX$ at the LHC. Taking into consideration various forward detector acceptances and integrated LHC luminosities, we find 95% confidence level bounds on the anomalous coupling parameters. We show that the bounds on these couplings are at the order of $10^{-6}Ge{V}^{-2}$ which are about four orders of magnitude more restricted with respect to current experimental bounds.

Comments: 15 pages, 4 figures; to be published in PRD