Towards the NNLO evolution of polarised parton distributions
β Scribed by A. Vogt; S. Moch; M. Rogal; J.A.M. Vermaseren
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 388 KB
- Volume
- 183
- Category
- Article
- ISSN
- 0920-5632
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π SIMILAR VOLUMES
Off-forward structure functions of the pion are investigated in twist-two and twist-three approximation. A simple model is used for the pion, which allows to introduce finite size effects, while preserving gauge invariance. Results for the imaginary parts of the 7"7r --+ 7"7r off-forwaxd amplitude a
Generalized parton distributions are a type of hadronic observables which has recently stimulated great interest among theorists and experimentalists alike. Introduced to delineate the spin structure of the nucleon, the orbital angular momentum of quarks in particular, the new distributions contain