Observation of jet production in deep inelastic scattering with a large rapidity gap at HERA
Abstract
Events with a large rapidity gap in deep inelastic scattering with Q2 ≥ 10 GeV 2 have been studied in the ZEUS detector. The properties of these events with W > 140 GeV are consistent with a leading twist diffractive production mechanism. In the laboratory frame, with ETjet ≥ 4 GeV, 15% of the events are of the 1-jet type with negligible 2-jet production. The single jet is back-to-back in azimuth with the scattered electron. No energy flow is observed between the jet and the proton direction. With a lower jet transverse energy cut 2-jet production is observed both in the laboratory and the γ ∗ p centre-of-mass systems, demonstrating the presence of hard scattering in the virtual photon proton interactions that give rise to large rapidity gap events.
- Publication:
-
Physics Letters B
- Pub Date:
- July 1994
- DOI:
- 10.1016/0370-2693(94)90883-4
- Bibcode:
- 1994PhLB..332..228D