Hybrid Meson Potentials and the Gluonic van der Waals Force

Details Hybrid Meson Potentials and the Gluonic van der Waals Force Hybrid Meson Potentials and the Gluonic van der Waals Force

2003-04-29

arxiv.org/abs/hep-ph/0304273v2

Phys.Lett. B582 (2004) 172-178

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, RevTex, 2 ps figures. Version to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2004.01.011

The chromoelectric polarizability of mesons governs the strength of the gluonic van der Waals force and therefore of non-quark-exchange processes in hadronic physics. We compute the polarizability of heavy mesons with the aid of lattice gauge theory and the Born--Oppenheimer adiabatic expansion. We find that the operator product expansion breaks down at surprisingly large quarks masses due to nonperturbative gluodynamics and that previous conclusions concerning $J/\psi$--nuclear matter interactions and $J/\psi$ dissociation in the quark-gluon plasma must be substantially modified.

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