QCD at low energy: The use of many-body methods

38th Symposium on Nuclear Physics

Quiroz, D A Amor^1 ; Hess, P.O.^1 ; Civitarese, O.^2 ; Yépez-Martínez, T.^1

Instituto de Ciencias Nucleares, UNAM, Circuito Exterior, C.U., A.P. 70-543, México, D.F.

04510, Mexico^1

Departamento de Física, Universidad Nacional la Plata, C.C.67, La Plata

1900, Argentina^2

关键词: Current status;    Exact diagonalization;    Linear potential;    Low-energy;    Many body;    Meson spectra;    Research programs;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/639/1/012014/pdf
DOI  :  10.1088/1742-6596/639/1/012014

来源: IOP

【 摘 要 】

The exact diagonalization of the kinetic energy-term of the QCD-Hamiltonian, at low energy and restricted to a finite volume, is resumed. The Coulomb interaction term, approximated by a sum of a 1/r and a linear potential, is added. Only quarks and anti-quarks are considered, while the gluons are taken into account effectively via the linear potential. The Tamm-Dankoff method is applied to obtain the meson spectrum of a simplified QCD- Hamiltonian at low energy. The current status and first results of our research-program are presented.