scholarly journals Spectral-Fluctuations Test of the Quark-Model Baryon Spectrum

2007 ◽  
Vol 98 (6) ◽  
Author(s):  
C. Fernández-Ramírez ◽  
A. Relaño
Keyword(s):  
Quark Model ◽  
Baryon Spectrum

SPECTRUM OF BARYONS AND SPIN–ISOSPIN DEPENDENCE

2008 ◽  
Vol 23 (07) ◽  
pp. 527-537 ◽  
Author(s):  
H. HASSANABADI ◽  
A. A. RAJABI ◽  
S. ZARRINKAMAR
Keyword(s):  
Hyperfine Interaction ◽  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Baryon Spectrum ◽  
Goldstone Bosons ◽  
Dependent Part ◽  
Quark Potential ◽  
Baryon Spectroscopy ◽  
Isospin Dependence

The constituent quark model (CQM) has recently been widely used for the description of the internal structure of baryons. The baryon spectrum is usually well described, although various models are quite different. However, the study of baryon spectroscopy is not sufficient to distinguish among the various forms of quark dynamics. It would be interesting to consider the effect of an extra residual interaction among the quarks, which contains a dependence on isospin (or flavor). In the chiral constituent quark model the non-confining part of the potential is provided by the interaction with the Goldstone bosons, giving rise to a spin- and isospin-dependent part which is crucial for the description of the spectrum for energies lower than 1.7 GeV. In this work we have introduced an improved form of the hyperfine interaction and isospin dependent quark potential. The resulting description of the baryon spectrum was found to be satisfactory and we not only have included confinement potential at large separations, but also color charge and non-confining hyperfine interaction potentials. This combination of potentials yields spectra which are very close to the ones obtained in experiments.

scholarly journals Study of Heavy Strange Baryons in a Hypercentral Quark Model

2018 ◽  
Vol 46 ◽  
pp. 1860037 ◽  
Author(s):  
Zahra Ghalenovi
Keyword(s):  
Quark Model ◽  
Radiative Decay ◽  
Goldstone Boson ◽  
Constituent Quark Model ◽  
Baryon Spectrum ◽  
Heavy Baryons ◽  
Boson Exchange ◽  
Charm Baryons ◽  
The One ◽  
Three Body

In this work, we study the properties of the heavy baryons with strangeness employing a constituent quark model in the hypercentral approach. The potential model considers the interactions arising the one-gluon exchange, Goldstone boson exchange and confinement, aspects of underlying theory, quantum chromodynamics (QCD). By solving three-body Schrodinger equation of baryonic system, we obtain the ground as well as the corresponding energy eigenvalues of the system. Using the obtained energies, we calculate the baryon spectrum. We extend our scheme to predict the radiative decay width of the charm baryons. A comparison of our results with those of other works and experimental data is also presented.

scholarly journals Ω baryon spectrum and their decays in a constituent quark model

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
Ming-Sheng Liu ◽  
Kai-Lei Wang ◽  
Qi-Fang Lü ◽  
Xian-Hui Zhong
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Baryon Spectrum

Spectroscopy of light baryons in a semi-relativistic constituent three-quark model

2017 ◽  
Vol 26 (07) ◽  
pp. 1750042 ◽  
Author(s):  
M. Aslanzadeh ◽  
A. A. Rajabi
Keyword(s):  
Quark Model ◽  
Energy Levels ◽  
Average Energy ◽  
Experimental Spectrum ◽  
Baryon Spectrum ◽  
Quark System ◽  
Analytical Formulas ◽  
Baryon Spectroscopy ◽  
Invariant Interaction ◽  
Breaking Term

We studied the non-strange baryon spectroscopy by presenting a simple semi-relativistic constituent three-quark model. Assuming a separation of the interaction potential in terms of a leading SU(6) symmetric component and a subleading SU(6) breaking term, we treated the baryons as a spin-independent three-quark system and presented the analytical solution for the problem. Using perturbative and approximative approaches in order to deal with problematic linear confining term in SU(6)-invariant interaction, we obtained analytical formulas for energy levels and the hyperradial wave functions and the average energy values of the nonstrange resonances are reproduced. To describe the hyperfine structure of the baryon, the splittings within the SU(6)-multiplets are produced by the perturbative spin- and isospin-dependent terms. The resulting description of the baryon spectrum for both approaches are given and compared with the experimental spectrum.

LIGHT BARYON SPECTRUM IN A CHIRAL QUARK MODEL

1999 ◽  
Vol 08 (02) ◽  
pp. 159-166 ◽  
Author(s):  
HONG CHEN ◽  
JIANJUN YANG
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Energy Levels ◽  
Constituent Quark Model ◽  
Meson Exchange ◽  
Chiral Quark Model ◽  
Baryon Spectrum ◽  
Light Baryon

The contribution due to the chiral meson exchange to the energy levels of the light baryons is studied in the constituent quark model. The effects of different dynamical ingredients are discussed and the results with and without the chiral meson exchange are compared. Our calculation accommodates all confirmed states and indicates that the chiral meson exchange is indeed necessary to resolve some outstanding problems.

Baryon spectrum in the chiral constituent quark model

2001 ◽  
Vol 63 (3) ◽  
Author(s):  
H. Garcilazo ◽  
A. Valcarce ◽  
F. Fernández
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Baryon Spectrum
Sign in / Sign up

Export Citation Format

Share Document