Goeckeler, Meinulf and Horsley, R. and Klaus, B. and Pleiter, D. and Rakow, P. E. L. and Schaefer, Stefan and Schaefer, Andreas and Schierholz, G. (2002) A lattice evaluation of four-quark operators in the nucleon. NUCLEAR PHYSICS B, 623 (1-2): PII S0550-. pp. 287-300. ISSN 0550-3213
Full text not available from this repository. (Request a copy)Abstract
Nucleon matrix elements of various four-quark operators are evaluated in quenched lattice QCD using Wilson fermions. Some of these operators give rise to twist-four contributions to nucleon structure functions. Furthermore, they bear valuable information about the diquark structure of the nucleon. Mixing with lower-dimensional operators is avoided by considering appropriate representations of the flavour group. We find that for a certain flavour combination of baryon structure functions, twist-four contributions are very small. (C) 2002 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DEEP INELASTIC-SCATTERING; POWER CORRECTIONS; HIGHER-TWIST; QCD; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Nov 2021 09:17 |
| Last Modified: | 09 Nov 2021 09:17 |
| URI: | https://pred.uni-regensburg.de/id/eprint/40587 |
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