DOI 10.1007/s100529900162
Strangeness content and structure function of the nucleon
in a statistical quark model
L.A. Trevisan1 - T. Frederico2 - L. Tomio3
1 Departamento de Matemática e Estatística,
Universidade Estadual de Ponta Grossa,
84010-790, Ponta Grossa, PR, Brazil
(e-mail: latrevis@uepg.br)
2 Departamento de Física, Instituto Tecnológico de Aeronáutica, CTA,
12228-900, São José dos Campos, SP, Brazil
(e-mail: tobias@fis.ita.cta.br)
3 Instituto de Física Teórica, Universidade Estadual Paulista,
01405-900, São Paulo, SP, Brazil
(e-mail: tomio@ift.unesp.br)
Received: 15 March 1999 / Revised version: 15 April 1999 / Published online: 14 October 1999
Abstract
The strangeness content of the nucleon is determined from a statistical
model using confined quark levels, and is shown to have a good
agreement with the corresponding values extracted from experimental
data. The quark levels are generated in a Dirac equation that uses a
linear confining potential (scalar plus vector).
With the requirement that the result for the Gottfried sum rule
violation,
given by the New Muon Collaboration (NMC), is well reproduced, we also
obtain the difference between
the structure functions of the proton and neutron, and the corresponding
sea quark contributions.
Copyright Springer-Verlag
