1999/05/05 by Peter Minkowski, Minkowski, Peter, Wolfgang Ochs +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9905250
Talk at the Workshop on Hadron Spectroscopy (W.O.), Frascati, Italy, March 8-12th, 1999, to be published in Frascati Physics Series, 11 pages, 3 figures, LATEX
arxiv created 1999/05/05 · arxiv updated 2009/11/30
The evidence for the low mass JPC=0++ states is reconsidered. We suggest classifying the isoscalars f0(980) and f0(1500) as members of the 0++ nonet, with a mixing rather similar to that of the pseudoscalars η' and η. The broad state called f0(400-1200) or `sigma'' and the state f0(1370) are considered as different signals from a single broad resonance, which we take to be the lowest-lying 0++ glueball. The main arguments in favor of these hypotheses are presented and compared with theoretical expectations.