Eur. Phys. J. C (2005) 44: 1-11
https://doi.org/10.1140/epjc/s2005-02345-3
https://doi.org/10.1140/epjc/s2005-02345-3
experimental physics
Measurement of deeply virtual Compton scattering at HERA
A measurement is presented of elastic deeply virtual Compton scattering 
made using e
+
p collision data corresponding to a luminosity of 46.5 pb-1, taken with the H1 detector at HERA. The cross section is measured as a function of the photon virtuality, Q
2, the invariant mass of the 
p system, W, and for the first time, differentially in the squared momentum transfer at the proton vertex, t, in the kinematic range 
, 
and 
. QCD based calculations at next-to-leading order using generalized parton distributions can describe the data, as can colour dipole model predictions.
© Springer-Verlag, 2005
