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T: Teilchenphysik

T 608: Elektroschwache Wechselwirkung II

T 608.1: Talk

Tuesday, March 8, 2005, 16:30–16:45, TU H3002

Measurement of the neutral current ep cross section using longitudinally polarised positron beam at HERA II — •Andrei Nikiforov and Vladimir Chekelian — Max-Planck-Institut für Physik, München, Germany

Data taken with the H1 detector, for longitudinally polarised positrons in left and right handed states in collision with unpolarised protons at HERA, are used to measure the cross sections for e⁺p neutral current deep inelastic scattering at a center-of-mass energy of √s = 319 GeV. The measured cross sections are compared with the predictions of the Standart Model.