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arXiv · hep-ph/9811518

Identification of the glueballs and the scalar meson nonet of lowest mass

Peter Minkowski·Wolfgang Ochs
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Abstract

We discuss the theoretical expectations and phenomenological evidence for the lightest glueballs and the members of the meson nonet with quantum numbers J^PC=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 f_0(980) and f_0(1500) as members of the 0^{++} nonet, with a mixing rather similar to that of the pseudoscalars eta' and eta. The S-wave states called f_0(400-1200) and f_0(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 eta(1440) and f_J(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.

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Peter Minkowski, Wolfgang Ochs. 1999-03-05. Identification of the glueballs and the scalar meson nonet of lowest mass. https://doi.org/10.1007/s100520050533

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