We study the contribution of instantons to the binding and the mass of the lightest scalar glueball, in gluon dynamics. We show that the short-range correlations introduced by such non-perturbative vacuum fluctuations are sufficient to give rise to a scalar glueball bound state, with a mass in good agreement with the results of recent lattice calculations.
Tichy, M., Faccioli, P. (2009). The Scalar Glueball in the Instanton Vacuum. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 63(3), 423-433 [10.1140/epjc/s10052-009-1111-2].
The Scalar Glueball in the Instanton Vacuum
Faccioli, P
2009
Abstract
We study the contribution of instantons to the binding and the mass of the lightest scalar glueball, in gluon dynamics. We show that the short-range correlations introduced by such non-perturbative vacuum fluctuations are sufficient to give rise to a scalar glueball bound state, with a mass in good agreement with the results of recent lattice calculations.
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