Gluonic Excitations in Heavy Mesons and their Decay by Flux-Tube Breaking

Abstract

We have examined decays of low-lying gluonic excitations of mesons (hybrids) by chromoelectric flux-tube breaking. An analytical calculation of non-relativistic flux-tube model decay amplitudes is performed in an harmonic oscillator approximation. Specific decay signatures of all $J^{PC}$ charmonium hybrids are identified and the widths predicted. We introduce a new selection rule which can be used to understand the systematics of numerical decay calculations.

Comments: 3 pages, LaTeX, to appear in the Proceedings of 'Quark Confinement and the Hadron Spectrum', June 20-23, 1994, Como, Italy, 0 figures, 19 kb