A measurement of the Q2, W and t dependences of deeply virtual Compton 
               scattering at HERA

                 ZEUS Collaboration

Deeply virtual Compton scattering, gamma* p -> gamma p, has been measured 
in e+p collisions at HERA with the ZEUS detector using an integrated 
luminosity of 61.1 pb-1. Cross sections are presented as a function of the 
photon virtuality, Q2, and photon-proton centre-of-mass energy, W, for a 
wide region of the phase space, Q2 > 1.5 GeV2 and 40 < W < 170 GeV. A 
subsample of events in which the scattered proton is measured in the 
leading proton spectrometer, corresponding to an integrated luminosity of 
31.3 pb-1, is used for the first direct measurement of the differential 
cross section as a function of t, where t is the square of the 
four-momentum transfer at the proton vertex.