COMPASS contribution to the study of the three-dimensional structure of the nucleon in SIDIS

5 May 2026, 10:00
20m
Sala IMPERIALE B. (Hotel Carlton)

Sala IMPERIALE B.

Hotel Carlton

Talk WG5 Spin and 3D Structure WG5 Spin and 3D-structure

Speaker

Anna Martin (Istituto Nazionale di Fisica Nucleare)

Description

Over more than 20 years of data taking, the COMPASS fixed-target experiment at the CERN SPS has devoted a major part of its programme to the study of nucleon structure using high-energy muon and pion beams and proton and deuteron targets. In particular, SIDIS measurements with transversely polarised and unpolarised targets, performed in a unique kinematic domain, have provided key insights into the transverse-spin and transverse-momentum structure of the nucleon and continue to deliver essential input for multidimensional studies.
This presentation gives an overview of the COMPASS SIDIS measurements with transversely polarised proton and deuteron targets, and discusses the results expected from the deuteron data set collected in 2022. In addition to the “standard” single-hadron and di-hadron asymmetries, novel measurements that go beyond these channels will be reviewed and discussed.

Speaker confirmation No

Author

Co-author

Anna Martin (Istituto Nazionale di Fisica Nucleare)

Presentation materials