The Hypercentral Constituent Quark Model and its symmetry

TL;DR

This paper introduces the hypercentral constituent quark model inspired by Lattice QCD, demonstrating its effectiveness in predicting baryon spectra and form factors, and highlighting the importance of relativistic effects in explaining experimental data.

Contribution

It presents a novel hypercentral quark model that incorporates symmetry and relativistic effects, providing new insights into baryon properties and form factors.

Findings

The model accurately reproduces the baryon spectrum.

Relativistic effects explain deviations from dipole form factors.

Agreement with Jefferson Lab data supports the model's validity.

Abstract

The hypercentral CQM, which is inspired by Lattice QCD calculations for quark-antiquark potentials, is presented, stressing its underlying symmetry. Its results for the spectrum, the helicity amplitudes and the elastic form factors are briefly reported. In the latter case the model has allowed to show, for the first time in the framework of a quark model, that relativistic effects are responsible for a deviation from the usually accepted dipole behaviour, in agreement with recent data taken at the Jefferson Lab.