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Physics Events: Seminars

Subject: TMD physics at COMPASS: present and future
Speaker:    Franco Bradamante
University of Trieste, Trieste, Italy
Date: Wednesday, February 22, 2017
Time: 4:00 p.m..
Place: CEBAF Center Auditorium
Abstract:The COMPASS Experiment is a fixed-target spectrometer taking data since 15 years at the CERN SPS. After a brief mention of the rich and diversified physics measurements which have already been performed or are being planned, the talk will focus on the variety of physics results which have been obtained in the domain of the recently introduced transverse momentum dependent (TMD) parton distribution functions by semi-inclusive deeply inelastic scattering (SIDIS) of 160 GeV muons off transversely polarized proton and deuteron targets. In a complementary approach, the first ever Drell-Yan measurement on a transversely polarized proton target was the objective of the 2015 run, to address the fundamental issue of the change of sign of the Sivers function when measured in the Drell-Yan process as compared to that measured in SIDIS.


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