Nuclear shadowing effect in photoproduction process at LHC

The authors give some results about nuclear shadowing of real photon at LHC. The authors show that shadowing grows strong with the increasing of photon energy Eγ. The CMS energy dependence of total cross sections of production of ρ, ω and φ in the process γ + A → V + A is also given. The results show that there is critical energy point, above which the nuclear shadowing is strong enough to be observed