The dissociation of virtual photons, γ⋆p→Xp, in events with a large rapidity gap between X and the outgoing proton, as well as in events in which the leading proton was directly measured, has been studied with the ZEUS detector at HERA. The data cover photon virtualities Q2>2 GeV2 and γ⋆p centre-of-mass energies 40X>2 GeV, where MX is the mass of ...
Read more