Gluon-mass effects in quarkonia decays, $e^+e^-$ annihilation and the scalar glueball current

Details Gluon-mass effects in quarkonia decays, $e^+e^-$ annihilation and the scalar glueball current Gluon-mass effects in quarkonia decays, $e^+e^-$ annihilation and the scalar glueball current

1996-11-06

arxiv.org/abs/hep-ph/9611250v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, latex, 5 figures

Scientific paper

In this paper we continue previous efforts in the literature to determine phenomenological values for the gluon mass by confronting theoretical results obtained in a theory of massive gluons with experimental values or results directly referring to the nontrivial structure of the Yang-Mills vacuum, e.g. to the presence of the gluon condensate. The decays of heavy quarkonia into 3 gluons and 2 gluons + photon are considered in detail as well as the correlators of the electromagnetic current and the scalar glueball current. Based on the analysis for the latter quantities a value for the gluon mass in the range of 500-600 MeV is estimated from the standard SVZ-value of the gluon condensate.

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