QCD vacuum topology and glueballs
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Data
2004-01-01
Autores
Forkel, H.
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American Institute of Physics (AIP)
Resumo
We outline a comprehensive study of spin-0 glueball properties which, in particular, keeps track of the topological gluon structure. Specifically, we implement (semi-hard) topological instanton physics as well as topological charge screening in the QCD vacuum into the operator product expansion (OPE) of the glueball correlators. A realistic instanton size distribution and the (gauge-invariant) renormalization of the instanton contributions are also implemented. Predictions for 0(++) and 0(-+) glueball properties are presented.
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Ix Hadron Physics and Vii Relativistic Aspects of Nuclear Physics. Melville: Amer Inst Physics, v. 739, p. 434-436, 2004.