Pseudovector mesons, hybrids and glueballs

Abstract

We consider glueball- (hybrid) meson mixing for the low-lying four pseudovector states. The h_1'(1380) decays dominantly to K*K with some presence in rho pi and omega eta. The newly observed h_1(1600) has a D- to S-wave width ratio to omega eta which makes its interpretation as a conventional meson unlikely. We predict the decay pattern of the isopartner conventional or hybrid meson b_1(1650). A notably narrow s sbar partner h_1'(1810) is predicted.

Comments: Talk given by PRP at the 7th Conference on the Intersections of Nuclear and Particle Physics (CIPANP 2000), Quebec City, Canada, May 22-28, 2000. 6 pages, LaTeX. The conclusion about h_1(1600) changed