  We have investigated real graviton emission in the ADD and RS model of extra
dimensions through the photoproduction process pp-> p gamma p-> pGqX at the
LHC. We have considered all contributions from the subprocesses gamma q -> G q,
where q=u,d,c,s,b,anti-u,anti-d, anti-c, anti-s, anti-b quark. The constraints
on model parameters of the ADD and RS model of extra dimensions have been
calculated. During numerical calculations we have taken account of 3, 4, 5 and
6 large extra dimensional scenarios. The constraints on RS model parameters
have been calculated by considering G -> gamma gamma, e^- e^+, mu^- mu^+ decay
channels of the graviton.
