Tetraquarks: relativistic corrections and other issues
Jean-Marc Richard, Alfredo Valcarce, Javier Vijande
TL;DR
This paper examines how relativistic kinematics influence the binding energies of multiquark states, showing that relativistic effects weaken the binding of tetraquarks compared to meson pairs, and discusses related issues in exotic hadrons.
Contribution
It provides an analysis of relativistic corrections on multiquark binding energies, highlighting their differential impact on tetraquarks versus meson thresholds.
Findings
Relativistic kinematics lowers the energy more for meson pairs than for tetraquarks.
Relativistic effects tend to weaken the binding of tetraquark states.
The paper discusses additional issues related to exotic hadrons.
Abstract
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.
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