Quantum chiral field theory of $0^{-+}$ glueball

TL;DR

This paper develops a chiral field theory for the $0^{-+}$ glueball, linking it to the U(1) anomaly, and provides quantitative predictions for its physical processes to aid in experimental identification.

Contribution

The paper introduces a novel chiral field theory for the $0^{-+}$ glueball, integrating it with existing meson Lagrangians and deriving testable predictions.

Findings

Mass of the $0^{-+}$ glueball estimated at 1.405 GeV

Theoretical framework connects glueball to U(1) anomaly

Predictions facilitate experimental identification of the glueball

Abstract

A chiral field theory of $0^{-+}$ glueball is presented. The coupling between the quark operator and the $0^{-+}$ glueball field is revealed from the U(1) anomaly. The Lagrangian of this theory is constructed by adding a $0^{-+}$ glueball field to a successful Lagrangian of chiral field theory of pseudoscalar, vector, and axial-vector mesons. Quantitative study of the physical processes of the $0^{-+}$ glueball of $m=1.405\textrm{GeV}$ is presented. The theoretical predictions can be used to identify the $0^{-+}$ glueball.