2002/03/08 by H1 Collaboration, C. Adloff et al., C. Adloff · 40 citations
Computer Science · Physics and Astronomy · #Charged particle #Computational Physics and Python Applications #Deep inelastic scattering #HERA #High-Energy Particle Collisions Research #Inelastic scattering #Jet (fluid) #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Proton #Pseudorapidity #Quantum chromodynamics #Rapidity #Scattering #ZEUS (particle detector) #hep-ex
paper · pdf · doi:10.1007/s10052-002-0988-9
published in The European Physical Journal C 24(4), 517-527 (Springer Science+Business Media) · 22 pages, 5 tables, 6 figures
arxiv created 2002/03/08 · openalex publication_date 2002/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Dijet events in photon-proton collisions in which there is a large pseudorapidity separation Delta eta > 2.5 between the two highest ET jets are studied with the H1 detector at HERA. The inclusive dijet cross sections are measured as functions of the longitudinal momentum fractions of the proton and photon which participate in the production of the jets, xpjet and xgjet respectively, Delta eta, the pseudorapidity separation between the two highest ET jets, and ETgap, the total summed transverse energy between the jets. Rapidity gap events are defined as events in which ETgap is less than ETcut, for ETcut varied between 0.5 and 2.0 GeV. The fraction of dijet events with a rapidity gap is measured differentially in Delta eta, xpjet and xgjet. An excess of events with rapidity gaps at low values of ETcut is observed above the expectation from standard photoproduction processes. This excess can be explained by the exchange of a strongly interacting colour singlet object between the jets.