Anomalous quartic $WW\gamma \gamma$ and $ZZ\gamma \gamma$ couplings in $\gamma p$ collision at the LHC

Abstract

We analyze the anomalous quartic gauge boson couplings $WW\gamma \gamma$ and $ZZ\gamma \gamma$, described by dimension-6 effective quartic Lagrangian at the LHC. The sensitivities to anomalous quartic gauge couplings $a_{0,c}^{W,Z}/{\Lambda }^2$ by examining the two different photon-induced processes $pp\to p\gamma p\to pW\gamma qX$ and $pp\to p\gamma p\to pZZqX$ with $W$ and $Z$s decaying leptonically are investigated. We show that $\gamma p$ mode of photon-induced reactions at the LHC are able to probe these couplings to the order of $10^{-6}$-$10^{-7}$ GeV${}^{-2}$ at 95 % confidence level with $\sqrt{s}$ = 14 TeV and for proton-proton luminosities in the range of 30-200 fb${}^{-1}$.

Comments: 12 pages, 6 figures, 2 tables to appear in Int. J. Mod. Phys. A