Tetraquarks: relativistic corrections and other issues [article]

Jean-Marc Richard, Alfredo Valcarce, Javier Vijande
2021 arXiv   pre-print
We discuss the effect of relativistic kinematics on the binding energy of multiquark states. For a given potential, the use of relativistic kinematics lowers the energy by a larger amount for the threshold made of two mesons than for a tetraquark, so that its binding is weakened. Some other issues associated with exotic hadrons are also briefly discussed.
arXiv:2112.04300v2 fatcat:33ln7op6lvglzpsxtd7v5zttrq