A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is
Proceedings of 40th International Conference on High Energy physics — PoS(ICHEP2020)
In 2015 and 2018 the COMPASS experiment at CERN measured muon-pair production in the Drell-Yan (DY) and J/Psi channels using a 190 GeV π − beam impinging on a transversely polarized NH 3 and unpolarized nuclear targets ( 27 Al, 184 W). Apart from the absolute cross-section measurements for both processes, COMPASS studies also the target spin (in)dependent azimuthal asymmetries in both channels. Assuming the valence quark-antiquark annihilation to be the main production mechanism, one candoi:10.22323/1.390.0488 fatcat:rbwcurof4bgpfl5yrup27tdfae