Eur. Phys. J. Plus (2013) 128: 27
https://doi.org/10.1140/epjp/i2013-13027-y

Regular Article

The light and strange baryon spectrum in a non-relativistic hypercentral quark potential model and algebraic framework

¹³¹⁸ Department of Basic Sciences, Islamic Azad University, Shahrood Branch, Shahrood, Iran
²³¹⁸ Physics Department, Shahrood University of Technology, Shahrood, Iran

^* e-mail: salehi@shahroodut.ac.ir

Received: 19 December 2012
Revised: 3 February 2013
Accepted: 4 February 2013
Published online: 6 March 2013

Abstract

In this paper, we studied the baryon resonances spectrum within a non-relativistically quark model using a simple approach based on the Gürsey-Radicati mass formula (GR). The average energy value of each SU(6) multiplet is described using the SU(6) invariant interaction given by a hypercentral potential. In this paper the hypercentral potential is composed of four components: the oscillatory potential, color charge, the intraction quark and neutral gluon and the dipole-dipole electromagnetic interaction. The results of our model (the combination of our proposed hypercentral potential and the generalized GR mass formula to the description of the spectrum) show that the light and strange baryons spectrum are in general fairly well reproduced. The overall good description of the spectrum which we obtain shows that our model can also be used to give a fair description of the energies of the excited multiplets with more than 2GeV mass and negative-parity resonance.