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Titolo:
Covariant axial form factor of the nucleon in a chiral constituent quark model
Autore:
Glozman, LY; Radici, M; Wagenbrunn, RF; Boffi, S; Klink, W; Plessas, W;
Indirizzi:
Graz Univ, Inst Theoret Phys, A-8010 Graz, Austria Graz Univ Graz Austria A-8010 v, Inst Theoret Phys, A-8010 Graz, Austria Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy Univ PaviaPavia Italy I-27100 nto Fis Nucl & Teor, I-27100 Pavia, Italy Ist Nazl Fis Nucl, I-27100 Pavia, Italy Ist Nazl Fis Nucl Pavia Italy I-27100 azl Fis Nucl, I-27100 Pavia, Italy Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 t Phys & Astron, Iowa City, IA 52242 USA
Titolo Testata:
PHYSICS LETTERS B
fascicolo: 1-2, volume: 516, anno: 2001,
pagine: 183 - 190
SICI:
0370-2693(20010906)516:1-2<183:CAFFOT>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
RELATIVISTIC QUANTUM-MECHANICS; PARTICLE PHYSICS; BARYON; QCD;
Keywords:
axial form factor; constituent quark model; point-form relativistic quantum mechanics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Glozman, LY Graz Univ, Inst Theoret Phys, Univ Pl 5, A-8010 Graz, Austria Graz Univ Univ Pl 5 Graz Austria A-8010 A-8010 Graz, Austria
Citazione:
L.Y. Glozman et al., "Covariant axial form factor of the nucleon in a chiral constituent quark model", PHYS LETT B, 516(1-2), 2001, pp. 183-190

Abstract

The axial form factor GA of the nucleon is investigated for the Goldstone-boson-exchange constituent quark model using the point-form approach to relativistic quantum mechanics. The results, being covariant, show large contributions from relativistic boost effects. The predictions are obtained directly from the quark-model wave functions, without any further input such asvertex or constituent-quark form factors, and fall remarkably close to theavailable experimental data. 2001 Published by Elsevier Science B.V.

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Documento generato il 02/06/20 alle ore 22:35:00