Is the D_sJ(2632) Meson a Cryptoexotic Tetraquark Baryonium State?

TL;DR

This paper proposes that the D_sJ(2632) meson is a cryptoexotic tetraquark baryonium state and predicts additional narrow states as its Regge recurrences below baryon-antibaryon thresholds.

Contribution

It introduces a novel interpretation of the D_sJ(2632) meson as a cryptoexotic tetraquark baryonium and predicts related states, expanding understanding of exotic hadrons.

Findings

D_sJ(2632) may be a cryptoexotic tetraquark baryonium

Predicted four narrow states as Regge recurrences

All predicted states lie below baryon-antibaryon thresholds

Abstract

We suggest that the recently discovered charm-strange meson D_sJ(2632), with unusual properties, could be a cyptoexotic tetraquark baryonium state cdd_bars_bar. We predict other four narrow states, as Regge recurrences of D_sJ(2632), below the possible baryon-antibaryon thresholds.