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

被引：0
作者：
Minkowski P. [1 ]
Ochs W. [2 ]
机构：
[1] Institute for Theoretical Physics, University of Bern
[2] Max Planck Institut für Physik, Werner Heisenberg Institut
来源：
The European Physical Journal C - Particles and Fields | 1999年 / 9卷 / 2期
关键词：
Decay Mode; Chiral Limit; Dalitz Plot; Phase Shift Analysis; Pion Exchange;
D O I：
10.1007/s100529900044
中图分类号：
学科分类号：
摘要：
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 O++ nonet, with a mixing rather similar to that of the pseudoscalars η′ and η. 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 η(1440) 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.
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页码：283 / 312
页数：29
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