QCD Glueball Sum Rules Revisited
We discuss several key problems of conventional QCD glueball sum rules in the spin-0 channels and showhow they are overcome by nonperturbative Wilson coefficients. The nonperturbative contributions originatefrom direct instantons and, in the pseudoscalar channel, additionally from topological charge...
Spremljeno u:
| Izdano u: | Brazilian Journal of Physics |
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| Glavni autor: | |
| Format: | Artigo |
| Jezik: | Inglês |
| Izdano: |
Sociedade Brasileira de Física
2004
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| Teme: | |
| Online pristup: | https://www.redalyc.org/articulo.oa?id=46400114 |
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