Events with a large rapidity gap in deep inelastic scattering with Q2 greater-than-or-equal-to 10 GeV2 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 E(T)jet greater-than-or-equal-to 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 gamma*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.

Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Schlereth, J., et al. (1994). OBSERVATION OF JET PRODUCTION IN DEEP-INELASTIC SCATTERING WITH A LARGE RAPIDITY GAP AT HERA. PHYSICS LETTERS. SECTION B, 332(1-2), 228-243 [10.1016/0370-2693(94)90883-4].

OBSERVATION OF JET PRODUCTION IN DEEP-INELASTIC SCATTERING WITH A LARGE RAPIDITY GAP AT HERA

MARI, Stefano Maria;
1994-01-01

Abstract

Events with a large rapidity gap in deep inelastic scattering with Q2 greater-than-or-equal-to 10 GeV2 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 E(T)jet greater-than-or-equal-to 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 gamma*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.
1994
Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Schlereth, J., et al. (1994). OBSERVATION OF JET PRODUCTION IN DEEP-INELASTIC SCATTERING WITH A LARGE RAPIDITY GAP AT HERA. PHYSICS LETTERS. SECTION B, 332(1-2), 228-243 [10.1016/0370-2693(94)90883-4].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/122090
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