The Spectrum of a Large N Gauge Theory Near Transition from Confinement to Screening

Details The Spectrum of a Large N Gauge Theory Near Transition from Confinement to Screening The Spectrum of a Large N Gauge Theory Near Transition from Confinement to Screening

1997-10-31

arxiv.org/abs/hep-th/9710240v2

Phys.Rev. D57 (1998) 6420-6428

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 9 postscript figures, uses psfig.sty, reference added

Scientific paper

10.1103/PhysRevD.57.6420

We study the spectrum of 1+1 dimensional large $N$ QCD coupled to an adjoint Majorana fermion of mass $m$. As $m\to 0$ this model makes a transition from confinement to screening. We argue that in this limit the spectrum becomes continuous for mass greater than twice the mass of the lightest bound state. This critical mass is nothing but the threshold for a decay into two lightest states. We present numerical results based on DLCQ that appear to support our claim.

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