The COMPASS collaboration performed a polarized Drell-Yan program to measure TMD (Transverse Momentum Dependent) and PDFs (Parton Distribution Functions) in 2015. The program was performed for one more year in 2018 to improve the statistics. In the Drell-Yan program a negative pion beam of 190 GeV/c with an intensity of $10^8$ /s will be scattered on a transversely polarized proton target with a length of 110 cm. We also plan to use a transversely polarized deuteron target for SIDIS (Semi-Inclusive-Deep-Inelastic-Scattering) program with muon beam in 2021 just after a long shut down of the CERN accelerators.
We will present the improved COMPASS PT system for the 2018 run and present the future plan of the deuteron target in 2021.
Volume 346 -
23rd International Spin Physics Symposium (SPIN2018) -
Parallel Session: Polarized Ion and Lepton Sources and Targets (K. Aulenbacher and C. Keith)
COMPASS polarized target in 2018 and 2021
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Pre-published on:
August 19, 2019
Published on:
August 23, 2019
Abstract
DOI: https://doi.org/10.22323/1.346.0097
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