DOI 10.1007/s100529900044
Identification of the glueballs and the scalar meson nonet of lowest mass
P. Minkowski1 - W. Ochs2
1 Institute for Theoretical Physics,
University of Bern,
CH-3012 Bern, Switzerland
2 Max Planck Institut für Physik,
Werner Heisenberg Institut,
D-80805 München, Germany
Received: 30 November 1998 / Revised version: 17 February 1999 / Published online: 27 April 1999
Abstract
We discuss the theoretical expectations and phenomenological evidence
for the lightest glueballs and the members of the meson nonet
with quantum numbers JPC=0++.
We reconsider the recent evidence for candidate states with masses below
1700 MeV, but include also the results from earlier
phase-shift analyses.
Arguments are presented to classify the scalars f0(980) and f0(1500)
as members of the 0++ nonet, with a mixing rather similar
to that of the pseudoscalars 
and 
. The S-wave states
called f0(400-1200) and f0(1370) are considered as
different signals from a
single broad resonance, which we take to be the lowest-lying 0++ glueball.
This state together with
and fJ(1710) with spin J=2 form the basic triplet of binary
gluonic bound states. We argue that these hypotheses are consistent with
what can be expected theoretically.
Copyright Springer-Verlag
