doi:10.3390/sym12081298engCarmona, J.M.Cortes, J.L.Pereira, L.Relancio, J.J.Bounds on Relativistic Deformed Kinematics from the Physics of the Universe TransparencyART-2020-119577We analyze the kinematics of electron-positron production in a photon-photon interaction when one has a modification of the special relativistic kinematics as a power expansion in the inverse of a new high-energy scale. We derive the equation for the threshold energy of this reaction to first order in this expansion, including the effects due to a modification of the energy-momentum conservation equation. In contrast with the Lorentz invariance violation case, a scale of the order of a few TeV is found to be compatible with the observations of very high-energy cosmic gamma rays in the case of a modification compatible with the relativity principle.2020http://zaguan.unizar.es/record/9550510.3390/sym12081298http://zaguan.unizar.es/record/95505oai:zaguan.unizar.es:95505info:eu-repo/grantAgreement/EUR/COST-Action/CA18108info:eu-repo/grantAgreement/ES/DGA-FSE/E21-20Rinfo:eu-repo/grantAgreement/ES/MINECO-FEDER/PGC2018-095328-B-I00SYMMETRY-BASEL 12, 8 (2020), 1298 [14 pp]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess