Archive - EP Seminar (until 2008)

Measurement and QCD Interpretation of the Inclusive Deep-Inelastic Scattering Cross Section by H1

Name: Measurement and QCD Interpretation of the Inclusive Deep-Inelastic Scattering Cross Section by H1
Start: 2001-10-08T16:30:00+02:00
End: 2001-10-08T17:30:00+02:00
Location: CERN

by Rainer Wallny (CERN-EP)

Monday 8 Oct 2001, 16:30 → 17:30 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400

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Description

Deep inelastic electron proton collisions are a straightforward tool to study the QCD dynamics between quarks and gluons in the proton. A recent measurement and QCD analysis of the deep inelastic scattering cross section by the H1 experiment at HERA are presented. In a NLO QCD analysis of H1 structure function data, the gluon distribution in the proton is extracted to typically 3% experimental accuracy at low Bjorken x.. In a combined analysis of H1 and high precision µp data by the CERN muon experiment BCDMS, the gluon distribution at low x and the strong coupling constant a_s were for the first time extracted simultaneously.The strong coupling constant is determined with about 1% experimental accuracy, and QCD at NLO is confirmed over 5 orders of magnitude of Bjorken x at a new level of precision.

Organiser(s): Ariane Frey / EP Division

Note: Tea & coffee will be served at 16.00 hrs.