X(3872) and its Partners in the Heavy Quark Limit of QCD

TL;DR

This paper proposes specific interpolating currents for the X(3872) resonance and predicts degenerate partner states in the heavy quark limit of QCD, regardless of its internal structure.

Contribution

It introduces interpolating currents for X(3872) and demonstrates the existence of degenerate partner states in the heavy quark limit of QCD.

Findings

X(3872) has degenerate partners in the heavy quark limit

Magnitudes of I=0 and I=1 components are discussed

Degeneracy is independent of internal structure

Abstract

In this letter, we propose interpolating currents for the X(3872) resonance, and show that, in the Heavy Quark limit of QCD, the X(3872) state should have degenerate partners, independent of its internal structure. Magnitudes of possible I=0 and I=1 components of the X(3872) are also discussed.