Hypercentral constituent quark model and the hyperfine dependence potential

• Main Authors: M. R. Shojaei, A. A. Rajabi
• Format: Article
• Language: English
• Published: Isfahan University of Technology 2007-06-01
• Series: Iranian Journal of Physics Research
• Subjects: Dirac equation; hypercentral; Jacobian coordinate; hyperfine-isospin
• Online Access: http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-103&slc_lang=en&sid=1

  In this article nucleons are discussed based on constituent quark model. This model aims at studying the forces among three particles and the corresponding standard two-body potential contribution. The quark potential contains a hypercentral interaction. The confining potential is composed of four components,color charge, the oscillatory potential, the interaction quark and neutral gluon, and the dipole – dipole electromagnetic interaction. Dirac equation can be solved carefully and analytically by means of these potentials. In addition to the above potentials, there is a hyperfine potential which is related to isospin – isospin and spin –isopin interactions. These potentials were considered as perturbation potentials and their energy shift was calculated.