The extended chiral quark model in a Tamm-Dancoff inspired approximation

Horvat, Dubravko and Horvatić, Davor and Podobnik, Boris and Tadić, Dubravko (2000) The extended chiral quark model in a Tamm-Dancoff inspired approximation. Fizika B, 9 (4). pp. 181-196. ISSN 1330-0016

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Abstract

A procedure inspired by the Tamm-Dancoff method is applied to the chiral quark model which has been extended to include additional degrees of freedom: a pseudoscalar isoscalar field as well as a triplet of scalar isovector fields. The simpler, generic sigma-model has been used before as a test for the Tamm-Dancoff inspired approximation (TDIA). The extended chiral quark model is employed here to investigate possible novel effects of the additional degrees of freedom as well as to point out the necessesity to introduce a SU(3) flavour. Model predictions for the axial-vector coupling constant and for the nucleon magnetic moment obtained in TDIA are compared with experimental values.

Item Type: Article
Keywords: extended chiral quark model, pseudoscalar isoscalar field, triplet of scalar isovector fields, Tamm-Dancoff approximation, SU(3) flavour, axial-vector coupling constant, nucleon magnetic moment
Date: 2000
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Publisher: Hrvatsko fizikalno društvo
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 14 Mar 2014 20:47
Last Modified: 14 Mar 2014 20:48
URI: http://digre.pmf.unizg.hr/id/eprint/603

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