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Titolo:
Orbital angular momentum parton distributions in light-front dynamics - art. no. 054023
Autore:
Cano, F; Faccioli, P; Scopetta, S; Traini, M;
Indirizzi:
Univ Trent, Dipartimento Fis, I-38050 Trent, Italy Univ Trent Trent Italy I-38050 t, Dipartimento Fis, I-38050 Trent, Italy European Ctr Theoret Studies Nucl Phys & Related, ECT, I-38050 Trent, Italy European Ctr Theoret Studies Nucl Phys & Related Trent Italy I-38050 aly SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA SUNY StonyBrook Stony Brook NY USA 11794 tron, Stony Brook, NY 11794 USA Ist Nazl Fis Nucl, I-38050 Trent, Italy Ist Nazl Fis Nucl Trent Italy I-38050 azl Fis Nucl, I-38050 Trent, Italy
Titolo Testata:
PHYSICAL REVIEW D
fascicolo: 5, volume: 6205, anno: 2000,
pagine: 4023 -
SICI:
0556-2821(20000901)6205:5<4023:OAMPDI>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
DEEP-INELASTIC-SCATTERING; POLARIZED STRUCTURE FUNCTIONS; MUON-PROTON-SCATTERING; SPIN STRUCTURE; NUCLEON SPIN; QUARK-MODEL; CONSTITUENT QUARKS; G1;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
52
Recensione:
Indirizzi per estratti:
Indirizzo: Cano, F Univ Trent, Dipartimento Fis, I-38050 Trent, Italy Univ Trent Trent Italy I-38050 timento Fis, I-38050 Trent, Italy
Citazione:
F. Cano et al., "Orbital angular momentum parton distributions in light-front dynamics - art. no. 054023", PHYS REV D, 6205(5), 2000, pp. 4023

Abstract

We study the quark angular momentum distribution in the nucleon within a light-front covariant quark model. Special emphasis is put into the orbital angular momentum, a quantity which is very sensitive to the relativistic treatment of the spin in a light-front dynamical approach. Discrepancies withthe predictions of the low-energy traditional quark models where relativistic spin effects are neglected are visible also after perturbative evolution to higher momentum scales. Orbital angular momentum distributions and their contribution to the spin sum rule are calculated for different phenomenological mass operators and compared with the results of the MIT bag model.

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Documento generato il 27/05/20 alle ore 15:47:33