Spin-dependent quark light-cone momentum distributions are calculated for a nucleon in the nuclear medium. We utilize a modified NJL model where the nucleon is described as a composite quark-diquark state. Scalar and vector mean fields are incorporated in the nuclear medium and these fields couple t
Spin dependent parton distributions in a bound nucleon
β Scribed by F.M. Steffens; K. Tsushima; A.W. Thomas; K. Saito
- Book ID
- 108440101
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 168 KB
- Volume
- 447
- Category
- Article
- ISSN
- 0370-2693
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π SIMILAR VOLUMES
We present a lattice measurement of the first two moments of the spin-dependent GPD H(z, [, t). From these we obtain the axial coupling constant and the second moment of the spin-dependent forward parton distribution. The measurements are done in full QCD using Wilson fermions. In addition, we also
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