Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-12-07
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, including 8 eps figures included with epsf.sty, Invited talk at the XIV International Seminar on High Energy Physics
Scientific paper
We carry out a systematic investigation of twist-two spin dependent structure functions of the nucleon within the framework of the chiral quark soliton model (CQSM) by paying special attention to the role of chiral symmetry of QCD. We observe a substantial difference between the predictions of the longitudinally polarized distribution functions and the transversity distribution ones. That the chiral symmetry is responsible for this difference can most clearly be seen in the isospin dependence of the corresponding first moments, i.e. the axial and tensor charges. The CQSM predicts $g_A^{(0)} / g_A^{(3)} \simeq 0.25$ for the ratio of the isoscalar to isovector axial charges, and $g_T^{(0)} / g_T^{(3)} \simeq 0.46$ for the ratio of the isoscalar to isovector tensor charges, which should be compared with the prediction of the naive (non-chiral) MIT bag model, $g_A^{(0)} / g_A^{(3)} = g_T^{(0)} / g_T^{(3)} = 3 / 5$.
No associations
LandOfFree
Chiral Symmetry and the Nucleon Spin Structure Functions 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 Chiral Symmetry and the Nucleon Spin Structure Functions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chiral Symmetry and the Nucleon Spin Structure Functions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-687793