Theorem on the Lightest Glueball State

Abstract

This paper is devoted to proving that, in QCD, the lightest glueball state must be the scalar with $J^{PC}=0^{++}$. The proof relies upon the positivity of the path integral measure in Euclidean space and the fact that interpolating fields for all spins can be bounded by powers of the scalar glueball operator. The problem presented by the presence of vacuum condensates is circumvented by considering the time evolution of the propagators and exploiting the positivity of the Hamiltonian.

9 pages, using harvmac

References in corpus (2)

• Numerical Evidence for the Observation of a Scalar Glueball
• Glueball Spectroscopy in a Relativistic Many-Body Approach to Hadron Structure

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