A remark on the glueball-gluon coupling
R. Dick1 - L.P. Fulcher2
1 Sektion Physik, Ludwig-Maximilians-Universität,
Theresienstrasse 37, D-80333 München,
2 Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH 43403, USA
Received: 16 March 1999 / Published online: 20 May 1999
The QCD trace anomaly motivates the consideration of a low energy glueball-gluon coupling .We point out that this should constitute the leading kinetic term for the gluons at low energies. Anti-screening of the gluons by the glueball then induces a classical Coulomb potential of color charges which increases at large distances and motivates the inclusion of a corresponding term in the inter-quark potential.
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