Speaker
Description
COMPASS is a fixed target high energy physics experiment located at the M2 beamline (SPS, North Area) at CERN. The experiment is collecting data since 2002 covering a broad range of physics topics. Experimental results obtained by COMPASS for spin (in)dependent azimuthal azimuthal effects in semi-inclusive deep inelastic scattering (SIDIS) measurements, play an important role in the general understanding of the three-dimensional nature of the nucleon. Giving access to the entire “twist-2” set of transverse momentum dependent (TMD) parton distribution functions (PDFs) and fragmentation functions (FFs), COMPASS data triggers constant theoretical interest and are being widely used in phenomenological analyses and global data fits.
In 2022 COMPASS is going to accomplish the series of measurements performed between 2002 and 2011 using 190 GeV/c muon beam and longitudinally and transversely polarized deuteron and proton targets, by collecting largest ever sample of SIDIS events with transversely polarized deuteron. This last round of measurements is particularly important for constraining the d-quark transversity and other TMD PDFs
In this talk COMPASS SIDIS results on azimuthal asymmetries, obtained from transversely polarized deuteron and proton data, will be reviewed along with relevant phenomenological and studies global fits. The details on COMPASS 2022 data-taking will be presented.
| Submitted on behalf of a Collaboration? | Yes |
|---|
