Anomalous WWγ coupling in photon-induced processes using forward detectors at the CERN LHC

We present a new method to test the standard model expectations at the LHC using photon-induced WW production. Both W decay in the main ATLAS or CMS detectors while scattered protons are measured in forward detectors. The sensitivity to anomalous WW gamma triple gauge coupling can be improved by more than a factor of 5 or 30 compared to the present LEP or Tevatron sensitivity, respectively.