Nucleon flavor asymmetry in a statistical model of confined quarks

Journal Article · Thu Dec 02 04:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1843663· OSTI ID:20630398

Trevisan, L A ^[1]; Tomio, Lauro ^[2]; Frederico, T ^[3]

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1. Departamento de Matematica e Estatistica, Universidade Estadual de Ponta Grossa, 84010-790, Ponta Grossa, PR (Brazil)
2. Instituto de Fisica Teorica, Universidade Estadual Paulista, 01405-900, Sao Paulo, SP (Brazil)
3. Departamento de Fisica, Instituto Tecnologico de Aeronautica, CTA, 12228-900, Sao Jose dos Campos, SP (Brazil)

We obtain a simultanously fit to the nucleon experimental data of the flavor asymmetry d-bar/u-bar in the sea, and the ratio d/u. We use a statistical thermal model, where the quarks are confined inside the nucleon by a linear potential. We adjust the Gottfried sum rule violation with a temperature parameter. To obtain a good fit to the ratio d-bar/u-bar it was also included the contribution of gluon splitting processes.

• OSTI ID: 20630398
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 739; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BAG MODEL
FLAVOR MODEL
GLUONS
NUCLEONS
POTENTIALS
QUARKS
STATISTICAL MODELS
SUM RULES
SYMMETRY