In this paper feasibility studies of the exclusive diffractive bremsstrahlung at RHIC energies are presented. The analysis exploits a simplified approach of the radiated photon and the scattered proton measurement. A brief discussion of possible backgrounds is given.
In this paper a method of a precise measurement of the LHC absolute luminosity is introduced. The method
expoilts the unlike sign lepton pair production in the two-photon process. A brief discussion of the kinematic
region optimisation, proposed detector model as well as the event selection scheme is given.