The state of the art concerning transverse-spin and transverse-momentum phenomena in
hard hadronic reactions is reviewed. An account is given of single-spin and azimuthal …

The nucleons (protons and neutrons) are by far the most abundant form of matter in our
visible Universe; they are composite particles made of quarks and gluons, the fundamental …

A global analysis of the experimental data on azimuthal asymmetries in semi-inclusive deep
inelastic scattering (SIDIS), from the HERMES and COMPASS Collaborations, and in e+ e …

We present an update of a previous global analysis of the experimental data on azimuthal
asymmetries in semi-inclusive deep inelastic scattering (SIDIS), from the HERMES and …

In this paper we present a comprehensive formalism for dilepton production from the
collision of two polarized spin-1 2 hadrons by identifying the general angular distribution of …

The Sivers function is extracted from HERMES data on single spin asymmetries in semi-
inclusive deeply inelastic scattering. Our analysis use a simple Gaussian model for the …

COMPASS-II Proposal Page 1 CERN-SPSC-2010-014 / SPSC-P-340 17/05/2010 EUROPEAN
ORGANIZATION FOR NUCLEAR RESEARCH May 17, 2010 COMPASS-II Proposal The …

The Sivers parton distribution function has been predicted to obey a particular “universality
relation”, namely, to have opposite sign in semi-inclusive deeply inelastic scattering (SIDIS) …

We present results for all leading-twist azimuthal spin asymmetries in semi-inclusive lepton-
nucleon deep-inelastic scattering due to T-even transverse-momentum dependent parton …

The Collins fragmentation function is extracted from HERMES data on azimuthal single spin
asymmetries in semi-inclusive deeply inelastic scattering, and BELLE data on azimuthal …