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Scalar-meson nonet dominance predictions for eta' decays and the quark content of the 0/sup + +/ states

Journal Article · · Phys. Rev., D; (United States)
Assuming that the amplitude for eta'..-->..eta..pi pi.. is dominated by scalar resonances and that the 0/sup + +/ nonet is composed of conventional p-wave qq-bar states with singlet-octet mixing, we obtain predictions for the decay width and Dalitz slope parameter for the decays eta'..-->..eta..pi pi.. and eta'..--> pi pi pi.. which are in excellent agreement with the latest experimental data. The ..pi pi.. and eta..pi.. mass spectra for eta'..-->..eta..pi pi.. are also determined and fit the experimental data quite well. Similar calculations for these decays using a qq-barqq-bar description of the 0/sup + +/ mesons yield results which disagree with experiment.
Research Organization:
Department of Physics, Seton Hall University, South Orange, New Jersey 07079
OSTI ID:
5120836
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 22:7; ISSN PRVDA
Country of Publication:
United States
Language:
English