MASS FORMULAS FOR SINGLE-CHARM TETRAQUARKS WITH FERMI-BREIT HYPERFINE INTERACTION

摘要

In this paper we present the main results of our investigation of the cqqq single-charm scalar tetraquarks and their SU(3)_F representations: 15_S, 3_S. 6_a and 3_A. We use the Fermi-Breit interaction Hamiltonian with SU(3) flavor symmetry breaking to determine the masses of the single-charm tetraquarks. We also discuss mass spectra obtained from meson and baryon mass fits. The mass spectra are very similar to those obtained with Glozman-Riska hyperfine interaction, and they indicate that some of the experimentally detected states may have tetraquark nature.