Relation between transverse momentum dependent distribution functions and parton distribution functions in the covariant parton model approach

0374684 - FZÚ 2012 RIV US eng J - Článek v odborném periodiku
Efremov, A.V. - Schweitzer, P. - Teryaev, O.V. - Závada, Petr
Relation between transverse momentum dependent distribution functions and parton distribution functions in the covariant parton model approach.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 83, č. 5 (2011), 054025/1-054025/7. ISSN 1550-7998
Grant CEP: GA MŠMT LA08015
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: covariant parton model * spin structure * quarks * 3D nucleon structure
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 4.558, rok: 2011
http://prd.aps.org/pdf/PRD/v83/i5/e054025

We derive relations between transverse momentum dependent distribution functions and the usual parton distribution functions in the 3D covariant parton model, which follow from Lorentz invariance and the assumption of a rotationally symmetric distribution of parton momenta in the nucleon rest frame. Using the known parton distribution functions f1a(x) and g1a(x) as input we predict the x- and p_T-dependence of all twist-2 T-even transverse momentum dependent distribution functions.
Trvalý link: http://hdl.handle.net/11104/0207544