Gluonic mesons in radiative decay
1 Particle Theory, Rutherford Appleton Laboratory, Chilton,
Didcot OX11 0QX, UK
2 Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
(e-mail: email@example.com. Tel.: (757) 2695028. Fax.: (757) 2697002)
Received: 7 March 1997
Two-gluon coupling of gluonic mesons is estimated in a spectator model to be considerably larger than that of .As an example of a gluonic meson that may be produced in radiative decay, we analyse . We deduce from experimental data that its branching ratio to two gluons is bounded, ,consistent with a gluonic meson, but not compelling it. We propose further tests, and estimate the two-photon coupling of to be keV.