Exotic states with QQQ′¯Q′¯ configuration

Abstract

In the framework of a non-relativistic quark model, we have calculated the masses of the \textcolor{red}{$QQ\bar{Q'}\bar{Q'}$} ($Q = c,b,s$ and $ \textcolor{red}{\bar Q'= \bar c, \bar b,\bar s}$) tetraquark states. Using the linear and quadratic confinement potentials inside a Cornell-type potential along with all possible spin and color configurations, the Schroedinger equation masses of these tetraquark states have been calculated. Based on our numerical analysis, linear confinement and quadratic confinement produce acceptable results. Models that use linear confinement estimated charmonium-like tetraquark mass close to experimental data, as well as bottomonium-like tetraquark mass below the threshold of their meson-meson channels.