Low-energy meson spectrum from a QCD approach based on many-body methods

DA Amor-Quiroz, T Yépez-Martínez… - … Journal of Modern …, 2017 - World Scientific
The Tamm–Dancoff Approximation (TDA) and Random Phase Approximation (RPA) many-
body methods are applied to an effective Quantum Chromodynamics (QCD) Hamiltonian in …

Recovery of the Center-of-Mass Galilean invariance of a NR-QCD motivated Hamiltonian

DA Amor-Quiroz, PO Hess, O Civitarese… - Journal of Physics …, 2018 - iopscience.iop.org
We evaluate the use of 3D-harmonic oscillator eigenfunctions in the expansion of the
fermionic fields of an effective QCD Hamiltonian with the 1/r plus a linearly confining …