München 2009 – scientific programme

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T: Fachverband Teilchenphysik

T 28: QCD 2

T 28.2: Talk

Wednesday, March 11, 2009, 17:00–17:15, A017

Measurement of the longitudinal proton structure function F_L at high Q² at HERA. — •Stanislav Shushkevich and Vladimir Chekelian — Max-Plank-Institut für Physik (Werner-Heisenberg-Institut), Föchringer Ring 6, 80805 München, Deutschland.

Data taken in 2007 with the H1 detector at HERA at a positron beam energy of 27.5 GeV and proton beam energies of 920, 575 and 460 GeV are used to measure inclusive deep inelastic neutral current ep scattering cross section at high Q² and determine the longitudinal structure function F_L(x,Q²) in a model independent way. The measured longitudional structure function is compared with QCD predictions.