The Scalar Glueball in the Instanton Vacuum

Details The Scalar Glueball in the Instanton Vacuum The Scalar Glueball in the Instanton Vacuum

2007-11-24

arxiv.org/abs/0711.3829v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version accepted for publication on EPJ C

Scientific paper

We study the contribution of instantons to the binding and the mass of the
lightest scalar glueball, in gluondynamics. We show that the short-range
correlations introduced by such non-perturbative vacuum fluctuations are
sufficient to give raise to a scalar glueball bound-state, with mass in good
agreement with the results of recent lattice calculations.

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