Braun, Vladimir M. and Korchemsky, G. P. and Manashov, A. N. (2001) Evolution equation for the structure function g(2)(x, Q(2)). NUCLEAR PHYSICS B, 603 (1-2). pp. 69-124. ISSN 0550-3213, 1873-1562
Full text not available from this repository. (Request a copy)Abstract
We perform an extensive study of the scale dependence of flavor-singlet contributions to the structure function g(2)(x, Q(2)) in polarized deep-inelastic scattering. We find that the mixing between quark-antiquark-gluon and three-gluon twist-3 operators only involves the three-gluon operator with the lowest anomalous dimension and is weak in other cases. This means, effectively, that only those three-gluon operators with the lowest anomalous dimension for each moment are important, and allows to formulate a simple two-component parton-like description of ga(x, Q(2)) in analogy with the conventional description of twist-2 parton distributions. The similar simplification was observed earlier for the nonsinglet distributions, although the reason is in our case different. (C) 2001 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DEEP-INELASTIC-SCATTERING; PARTON DISTRIBUTIONS; TWIST-3 OPERATORS; ASYMMETRY A(2); QCD; RENORMALIZATION; INTEGRABILITY; KERNELS; PROTON; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 18 Jan 2022 08:16 |
| Last Modified: | 18 Jan 2022 08:16 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41350 |
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