A new tetra-quark interpretation of X(3872)

Understand

A new tetra-quark interpretation of X(3872) is presented.

• In this model, X(3872) consists of two degenerate tetra-quark mesons, {[cn](cbar nbar) +- (cn)[cbar nbar]}_{I=0}, and, therefore, it is naturally understood that X(3872) decays into two different eigenstates of G-parity.