1997/03/06 by M. Boglione, M. R. Pennington · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevlett.79.1998
published as Phys.Rev.Lett.79:1998-2001,1997 · 12 pages, LaTex, 3 Postscript figures
arxiv created 1997/03/06 · openalex publication_date 1997/09/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Computations in the quenched approximation on the lattice predict the lightest glueball to be a scalar in the 1.5--1.8GeV region. Here we calculate the dynamical effect the coupling to two pseudoscalars has on the mass, width, and decay pattern of such a scalar glueball. Modeling this nonperturbative interaction reveals that, if the pure glue state has a width to two pseudoscalars of \ensuremath∼100MeV as predicted on the lattice, the resulting hadron has a width to these channels of only \ensuremath∼30MeV with a large \ensuremathη\ensuremathη component. Experimental results need to be reanalyzed in light of these predictions to decide if either the f0(1500) or an f0(1710) coincides with this dressed glueball.