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Apr 10 – 12, 2019
Denver, CO
US/Mountain timezone

GPD program at COMPASS at CERN

Apr 12, 2019, 10:55 AM
25m
Director's Row I (Denver, CO)

Director's Row I

Denver, CO

Sheraton Denver Downtown Hotel, 1550 Court Pl. lobby level of the Plaza building
invited talk GPDs andTMDs

Speaker

Nicole d'Hose (IRFU, CEA, Université Paris-Saclay)

Description

Investigation of GPDs and TMDs represents one of the major goals of the COMPASS-II program. Together, GPDs and TMDs provide the most complete description of the partonic structure of the nucleon. GPDs are experimentally accessible via lepton-induced exclusive reactions, in particular DVCS and DVMP. At COMPASS, these processes are investigated using the 160 GeV polarized muon beams. The DVCS cross-section and its |t|-dependence are extracted from the sum of cross-sections measured with opposite muon beam charges and polarizations. From this measurement, a first estimate of the transverse extension of the partons in the proton probed in the sea quark range will be reported.

Primary author

Nicole d'Hose (IRFU, CEA, Université Paris-Saclay)

Presentation materials