Diffractive bremsstrahlung at high-$$\beta ^\star $$β⋆ LHC

Feasibility studies of the measurement of the exclusive diffractive bremsstrahlung cross-section in proton–proton scattering at the centre of mass energy of 13 TeV at the LHC are reported. Present studies were performed for the low luminosity LHC running with the betatron function value of 90 m using the ATLAS associated forward detectors ALFA and ZDC. A simplified approach to the event simulation and reconstruction is used. The background influence is also discussed.