PS04 Hard QCD
Neutral and charged current cross sections and measurements of F 2, xF 3 and F L at high Q 2 at HERA
CERN, CH 1211 Geneva 23, Switzerland and DESY, Notkestr.85, D-22607 Hamburg,
Accepted: 9 March 2004
Published online: 31 March 2004
Inclusive e + p cross sections for neutral and charged current deep inelastic scattering have been determined by the H1 and ZEUS collaborations at HERA. The data were recorded in 1999 and 2000 at a center of mass energy of 318 GeV with an integrated luminosity of 65.2 pb–1 and 60.9 pb–1, respectively. Taking into account previously published e ± p neutral current data the structure functions F 2 and xF 3 were extracted. F L was determined by extending the measurement to small scattered positron energies. The quark singlet distribution F 2 CC was extracted for the first time at HERA by combining e + p and e – p charged current cross sections. All results are well described by Standard Model expectations.
PACS: 13.60.Hb Total and inclusive cross sections (including deep-inelastic processes) – 14.20.Dh Protons and neutrons
© Società Italiana di Fisica, Springer-Verlag, 2004