Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 57: Hadron Structure and Spectroscopy VII

HK 57.4: Talk

Friday, March 31, 2017, 15:15–15:30, F 5

Analysis of 2016 COMPASS data on DVCS — •Johannes Giarra — for the COMPASS Collaboration, Institut für Kernphysik, Mainz, Germany

The COMPASS Experiment is a fixed target experiment at the M2 beamline at CERN. In 2016 deeply virtual compton scattering (DVCS) was measured by scattering a polarized positive and negative charged muon beam off a liquid hydrogen target. From these measurements the charge and spin cross section difference can be determined. This difference is related to a generalized parton distribution function, which allows to study the three dimensional structure of the proton. The talk will discuss the status of the ongoing analysis with a focus on determination of the luminosity and comparison of the data taken with the positive and negative charged muon beam.