Graviton production through photon-quark scattering at the LHC

We have investigated real graviton emission in the Arkani-Hamed-Dimopoulos-Dvali (ADD) and Randall-Sundrum (RS) models of extra dimensions through the photoproduction process pp›p?p›pGqX at the LHC. We have considered all contributions from the subprocesses ?q›Gq, where q=u,d,c,s,b,u¯,d¯,c¯,s¯,b¯ quark. The constraints on model parameters of the ADD and RS models of extra dimensions have been calculated. During numerical calculations we have taken into account 3, 4, 5, and 6 large extradimensional scenarios. The constraints on RS model parameters have been calculated by considering G›??, ee¯, µµ¯ decay channels of the graviton. © 2015 American Physical Society