  Within the resolved Pomeron model of hard diffractive scattering, we compute
prompt photon production in double-Pomeron-exchange events in proton-proton
collisions. Using specific kinematical constraints chosen according to the
acceptances of the forward proton detectors of experiments at the Large Hadron
Collider, we provide estimates for inclusive and isolated photon production.
This is done using the JetPhox program. We find that next-to-leading order
corrections to the hard process are important and must be included in order to
correctly constrain the quark and gluon content of the Pomeron from such
processes at the LHC.
