Goeckeler, M. and Horsley, R. and Pleiter, Dirk and Rakow, P. E. L. and Schaefer, Andreas and Schierholz, G. and Stuben, H. and Zanotti, J. M. (2005) Investigation of the second moment of the nucleon's g(1) and g(2) structure functions in two-flavor lattice QCD. PHYSICAL REVIEW D, 72 (5): 054507. ISSN 2470-0010, 2470-0029
Full text not available from this repository.Abstract
The reduced matrix elements a(2) and d(2) are computed in lattice QCD with N-f=2 flavors of light dynamical (sea) quarks. For proton and neutron targets we obtain as our best estimates d(2)((p))=0.004(5) and d(2)((n))=-0.001(3), respectively, in the (MS) over bar scheme at Q(2)=5 GeV2, while for a(2) we find a(2)((p))=0.077(12) and a(2)((n))=-0.005(5), where the errors are purely statistical.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NONPERTURBATIVE RENORMALIZATION; SUM-RULES; OPERATORS; SCATTERING; SYMMETRY; TWIST-2; PROTON; QUARKS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Dirk Pleiter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 30 Apr 2021 13:46 |
| Last Modified: | 30 Apr 2021 13:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/35737 |
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