Measurement of deeply virtual Compton scattering and its t-dependence at HERA

A measurement of elastic deeply virtual Compton scattering γ∗p→γpγ∗p→γp using e−pe−p collision data recorded with the H1 detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 145 pb−1145 pb−1. The cross section is measured as a function of the virtuality Q2Q2 of the exchanged photon and the centre-of-mass energy W   of the γ∗pγ∗p system in the kinematic domain 6.5