1 research outputs found
Comparative analysis of the transversities and the longitudinally polarized distribution functions of the nucleon
A first empirical extraction of the transversity distributions for the -
and -quarks has been done by Anselmino {\it et al.} based on the combined
global analysis of the measured azimuthal asymmetries in semi-inclusive deep
inelastic scatterings and those in processes. Although
with large uncertainties, the determined transversity distributions already
appear to reveal a remarkable qualitative difference with the corresponding
longitudinally polarized distributions. We point out that this difference
contains very important information on internal spin structure of the nucleon.Comment: 12 pages, 2 figure