Diffractive Bremsstrahlung at High-β⋆\beta^\star LHC Case Study

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.Comment: 20 pages, 10 figures. arXiv admin note: substantial text overlap with arXiv:1603.0644

Transport Simulation and Diffractive Event Reconstruction at the LHC

The measurement of the diffractively scattered protons in the ATLAS Forward Physics detector system placed 220 m away from the ATLAS interaction point is studied. The parameterisation of the scattered proton transport through the LHC magnet lattice is presented. The proton energy unfolding and its impact on the centrally produced scalar particle mass resolution are discusse