Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-09-17
Eur.Phys.J. C32 (2003) 337-346
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, 9 figures, Ref.[29] added
Scientific paper
10.1140/epjc/s2003-01398-6
Predictions are made for single spin azimuthal asymmetries due to the Collins effect in pion production from semi-inclusive deeply inelastic scattering off transversely and longitudinally polarized targets for the HERMES and COMPASS experiments. The x-dependence of the asymmetries is evaluated using the parton distribution functions from the chiral quark-soliton model. The overall normalization of the predicted asymmetries is determined by the information on the Collins fragmentation function extracted from previous HERMES data on azimuthal asymmetries from a longitudinally polarized target. The single spin asymmetries from the transversely polarized proton target are found to be about 20% for positive and neutral pions both at HERMES and COMPASS. For a longitudinally polarized target we obtain for COMPASS a sin(phi) asymmetry of 1% and a sin(2phi) asymmetry of about 3%.
Efremov A. V.
Goeke Klaus
Schweitzer Pascal
No associations
LandOfFree
Collins effect and single spin azimuthal asymmetries in the HERMES and COMPASS experiments does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Collins effect and single spin azimuthal asymmetries in the HERMES and COMPASS experiments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collins effect and single spin azimuthal asymmetries in the HERMES and COMPASS experiments will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-137640