Short Range (formula presented) Potential Described by the Quark Exchange Diagram

Abstract

Recently, unexpected Exotic hadrons have been reported in the heavy flavor sector. Especially near the thresholds, these exotic states would be produced by the hadron-hadron interaction dynamically. In this talk, we study the short range (formula presented) potential whose importance is indicated by the Lattice QCD study. We compare the results from the (formula presented) meson exchange, and the Born-order quark exchange models, and find the large difference between two models.