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Infrared moment analysis and glueball mass estimates in 3d and 4d with N\_c = 2,3 colors

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(Oct 8, 2013)

Abstract

An infrared moment technique, recently developed by some of us, is employed to provide mass estimates for various glueball states in pure gauge theories. The main input in this analysis are theoretically well-motivated fits to lattice gluon propagator data, which are by now available for both SU(2) and SU(3) in 3 and 4 space-time dimensions. We construct appropriate gauge invariant and Lorentz covariant operators in the (pseudo)scalar and (pseudo)tensor sector. Our final numbers compare reasonably well with a variety of lattice sources directly aimed at extracting glueball masses.

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