Transversity measurements at HERMES

Abstract

Azimuthal single-spin asymmetries (SSA) in semi-inclusive electroproduction of charged pions in deep-inelastic scattering (DIS) of positrons on a transversely polarised hydrogen target are presented. Azimuthal moments for both the Collins and the Sivers mechanism are extracted. In addition the subleading-twist contribution due to the transverse spin component from SSA on a longitudinally polarised hydrogen target is evaluated.

to appear in the proceedings of the XIII International Workshop on Deep Inelastic Scattering (DIS 2005)

Cited by in corpus (30)

• Relations between generalized and transverse momentum dependent parton distributions
• Azimuthal and Single Spin Asymmetries in Hard Scattering Processes
• Twist-3 Formalism for Single Transverse Spin Asymmetry Reexamined: Semi-Inclusive Deep Inelastic Scattering
• The transverse momentum dependent distribution functions in the bag model
• Single-Transverse Spin Asymmetry in Semi-Inclusive Deep Inelastic Scattering
• Unified framework for generalized and transverse-momentum dependent parton distributions within a 3Q light-cone picture of the nucleon
• Single Transverse Spin Asymmetry for Large-p_T Pion Production in Semi-Inclusive Deep Inelastic Scattering
• Azimuthal spin asymmetries in light-cone constituent quark models
• QCD Evolution of the Transverse Momentum Dependent Correlations
• Soft-fermion-pole contribution to single-spin asymmetry for pion production in pp collisions
• Transverse momentum dependent distribution functions in a covariant parton model approach with quark orbital motion
• Pretzelosity distribution function h_1T^perp and the single spin asymmetry A_UT^sin(3phi-phi_S)
• Are there approximate relations among transverse momentum dependent distribution functions?
• Azimuthal asymmetries for hadron distributions inside a jet in hadronic collisions
• Constraints on the gluon Sivers distribution via transverse single spin asymmetries at midrapidity in p(transv. polarized) p -> pi^0 X processes at BNL RHIC
• Resummation for Polarized Semi-Inclusive Deep-Inelastic Scattering at Small Transverse Momentum
• Lorentz invariance relations between parton distributions and the Wandzura-Wilczek approximation
• Monte Carlo simulation of single spin asymmetries in pion-proton collisions
• Azimuthal asymmetries in lepton-pair production at a fixed-target experiment using the LHC beams (AFTER)
• Monte Carlo simulation of the Sivers effect in high-energy proton-proton collisions
• Sub-leading twist transverse momentum dependent parton distributions in the light-front quark-diquark model
• Predictions for Sivers single spin asymmetries in one- and two-hadron electroproduction at CLAS12 and EIC
• Twist-4 T-even proton TMDs in the light-front quark-diquark model
• Single Target-Spin Asymmetry in Semi-Inclusive Deep Inelastic Scattering on Transversely Polarized Nucleon Target
• Orbital structure of quarks inside the nucleon in the light-cone diquark model
• Lorentz invariance relations and Wandzura-Wilczek approximation
• Double transverse spin asymmetry in the $p^{\uparrow }{\bar{p}}^{\uparrow }$ Drell-Yan process from Sivers functions
• Sivers and Collins Single Spin Asymmetries
• Unraveling sub-leading twist GTMDs of proton using LFQDM
• Deciphering Twist-3 Chiral-Even GPDs in the Light-Front Quark-Diquark Model