1/N Expansion and Particle Spectrum in Induced QCD
A.A. Migdal
TL;DR
This paper investigates the 1/N expansion in a lattice gauge theory model induced by heavy adjoint scalar fields, deriving the scalar glueball spectrum through Gaussian eigenvalue fluctuations.
Contribution
It introduces a novel approach to compute the scalar glueball spectrum using the 1/N expansion in an induced lattice gauge theory model.
Findings
Eigenvalue fluctuations are Gaussian in the first approximation
Scalar glueball spectrum derived from linear wave equation
Provides insights into non-perturbative spectrum in induced QCD
Abstract
We study the 1/N expansion in the recently proposed model of the lattice gauge theory induced by heavy scalar field in adjoint representation. In the first approximation the fluctuations of the density of eigenvalues of the scalar field are Gaussian, so that the scalar glueball spectrum is defined from the corresponding linear wave equation.
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