Azimuthal asymmetries at CLAS: Extraction of e^a(x) and prediction of A_{UL}

Details Azimuthal asymmetries at CLAS: Extraction of e^a(x) and prediction of A_{UL} Azimuthal asymmetries at CLAS: Extraction of e^a(x) and prediction of A_{UL}

2002-08-13

arxiv.org/abs/hep-ph/0208124v1

Phys.Rev. D67 (2003) 114014

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 5 figures, latex

Scientific paper

10.1103/PhysRevD.67.114014

First information on the chirally odd twist-3 proton distribution function e(x) is extracted from the azimuthal asymmetry, A_{LU}, in the electro-production of pions from deeply inelastic scattering of longitudinally polarized electrons off unpolarized protons, which has been recently measured by CLAS collaboration. Furthermore parameter-free predictions are made for azimuthal asymmetries, A_{UL}, from scattering of an unpolarized beam on a polarized proton target for CLAS kinematics.

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