Since 2005, measurements of the SIDIS process off transversely polarised protons performed by the HERMES and COMPASS Collaboration have shown that the Collins and the Sivers asymmetries are clearly different from zero, a milestone in the knowledge of the nucleon structure.
Only few data were collected in the early phase of the COMPASS experiment on a deuteron (6LiD) target and more recently at...
The detailed understanding of the orbital structure of partonic distributions, encoded in partonic Transverse Momentum Distributions (TMDs), has been widely recognized as one of the key objectives of the JLab 12 GeV upgrade, and a driving force behind the construction of the Electron Ion Collider.
Correlations of the spin of the target or/and the momentum and the spin of quarks, combined with...
The SoLID (Solenoidal Large Intensity Detector) program is proposed at JLab to be capable of running experiments with both high luminosity (10$^{37}$ − 10$^{39}$cm$^{−2}$s$^{−1}$) and large acceptance, exploiting the full potential of the 12 GeV energy upgrade at JLab. The spectrometer is designed with a capability of reconfiguration to optimize for either Parity-Violating Deep Inelastic...
Polarized proton-proton and proton-nucleus collisions at Relativistic Heavy Ion Collider (RHIC) presents a unique opportunity to study the partonic and spin structure of the nucleon and nuclei. The STAR experiment at RHIC has measured at mid-pseudorapidity ($-1<\eta<2$) spin asymmetries in production cross section of pions, jets, as well as W and Z bosons, providing important experimental...
This talk will discuss opportunities to measure spin effects at a high-energy Electron-Ion Collider (EIC). Various types of spin distributions (PDFs, TMDs, GTMDs) will be considered and promising observables will be discussed, in particular those with heavy quark final states.
