Lattice gluon propagator and one-gluon-exchange potential.
CUCCHIERI, Attilio; MENDES, Tereza; SERENONE, Willian Matioli.
CUCCHIERI, Attilio; MENDES, Tereza; SERENONE, Willian Matioli.
Abstract: We consider the interquark potential in the one-gluon-exchange approximation, using a fully nonperturbative gluon propagator from large-volume lattice simulations. In so doing, we hope to get a better insight about confinement as an emergent property of the interquark interaction, induced by the gluon propagator, rather than as a built-in feature. The resulting potential, however, is nonconfining, although it allows the characterization of a few low-lying bound states of charmonium and bottomonium. We thus conclude, contrary to a previous study, that this approximation is not sufficient to describe the infrared sector of QCD. For completeness, we obtain a better description of these spectra by adding to the potential a linearly growing term. The obtained results are then comparable with the corresponding ones from using the Cornell potential. As a byproduct of our study, we estimate the interquark distance in charmonium and bottomonium states. | |
Brazilian Journal of Physics |
v. 49, n. 4, p. 548-563 - Ano: 2019 |
Fator de Impacto: 0,833 |
http://dx.doi.org/10.1007/s13538-019-00665-6 | @article={002950431,author = {CUCCHIERI, Attilio; MENDES, Tereza; SERENONE, Willian Matioli.},title={Lattice gluon propagator and one-gluon-exchange potential},journal={Brazilian Journal of Physics},note={v. 49, n. 4, p. 548-563},year={2019}} |