Comparison of deep inelastic scattering with photoproduction interactions at HERA

Academic Article


  • Photon-proton (γp) interactions with Q2 < 10-2 GeV2 and deep-inelastic scattering (γ*p) interactions with photon virtualities Q2 > 5 GeV2 are studied at the high energy electron-proton collider HERA. The transverse energy flow and relative rates of large rapidity gap events are compared in the two event samples. The observed similarity between γp and γ*p interactions can be understood in a picture where the photon develops as a hadronic object. The transverse energy density measured in the central region of the collision, at η* = 0 in the γ*p centre of mass frame, is compared with data from hadron-hadron interactions as function of the CMS energy of the collision. © 1995.
  • Published In

  • Physics Letters B  Journal
  • Digital Object Identifier (doi)

    Author List

  • Aid S; Andreev V; Andrieu B; Appuhn RD; Arpagaus M; Babaev A; Bähr J; Bán J; Ban Y; Baranov P
  • Start Page

  • 412
  • End Page

  • 422
  • Volume

  • 358
  • Issue

  • 3-4