Schweitzer, P. and Urbano, D. and Polyakov, M. V. and Weiss, C. and Pobylitsa, P. V. and Goeke, K. (2001) Transversity distributions in the nucleon in the large-N-c limit. PHYSICAL REVIEW D, 64 (3): 034013. ISSN 2470-0010, 2470-0029
Full text not available from this repository.Abstract
We compute the quark and antiquark transversity distributions in the nucleon at a low normalization point (mu approximate to 600 MeV) in the large-N-c limit, where the nucleon can be described as a soliton of an effective chiral theory (chiral quark-soliton model). The flavor-nonsinglet distributions deltau(x)-deltad(x) and delta(u) over bar (x)-delta(d) over bar (x) appear in leading order of the 1/N-c expansion, while the flavor-singlet distributions deltau(x)+deltad(x) and delta(u) over bar (x) + delta(d) over bar (x) are nonzero only in next-to-leading order. The transversity quark and antiquark distributions are found to be significantly different from the longitudinally polarized distributions Deltau(x) +/-Deltad(x) and Delta(u) over bar (x) +/-Delta(d) over bar (x), respectively, in contrast with the prediction of the naive nonrelativistic quark model. We show that this affects the predictions for the spin asymmetries in Drell-Yan pair production in transversely polarized pp and p (p) over bar collisions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TO-LEADING-ORDER; QUARK-SOLITON MODEL; INTERFERENCE FRAGMENTATION FUNCTIONS; POLARIZED PARTON DISTRIBUTIONS; DEEP-INELASTIC SCATTERING; DRELL-YAN PROCESSES; SPIN ASYMMETRIES; AZIMUTHAL ASYMMETRIES; SOFFERS INEQUALITY; SEMIINCLUSIVE DIS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2021 13:32 |
| Last Modified: | 14 Dec 2021 13:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41241 |
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