Generalized parton distributions of the nucleon in the Nambu-Jona-Lasinio model based on the Faddeev approach

Journal Article · Mon Aug 01 00:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.025202· OSTI ID:20698926

Mineo, H ^[1]; Yang, S N ^[1]; Cheung, C -Y ^[2]; Bentz, W ^[3]

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1. Department of Physics and National Center for Theoretical Sciences at Taipei, National Taiwan University, Taipei 10617, Taiwan (China)
2. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China)
3. Department of Physics, Tokai University, Hiratsuka-shi, Kanagawa 259-1292 (Japan)

We study the generalized parton distributions, including the helicity-fiip ones, using the Nambu-Jona-Lasinio (NJL) model based on a relativistic Faddeev approach with 'static approximation'. Sum rules relating the generalized parton distributions to nucleon electromagnetic form factors are satisfied. Moreover, quark-antiquark contributions in the region -{xi}<x<{xi} are nonvanishing. Our results are qualitatively similar to those calculated with Radyushkin's double distribution ansatz using forward parton distribution functions calculated in the NJL model as inputs.

• OSTI ID: 20698926
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 72, Issue 2; Other Information: DOI: 10.1103/PhysRevC.72.025202; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLOR MODEL
DISTRIBUTION
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC FORM FACTORS
HELICITY
NUCLEONS
PARTON MODEL
PARTONS
QUARKS
RELATIVISTIC RANGE
SUM RULES