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X/sup 0/(958). -->. eta. pi pi. decay and etaX/sup 0/ mixing

Journal Article · · Phys. Rev., D; (United States)
Within the framework of a broken-SU(6) x O(3) quark model of Lorentz-invariant hadron-coupling structures, the three-body decay process X/sup 0/(958) ..-->.. eta..pi pi.. is investigated with a view to assessing the value of the etaX/sup 0/ mixing angle. The model assumes that the amplitude for this process is dominated by a delta (970) ..pi.. intermediate state so that X/sup 0/ ..-->.. delta..pi.. ..-->.. eta..pi pi... The results obtained seem to favor a quadratic mass formula for pseudoscalar mesons with an etaX/sup 0/ mixing angle of -10/sup 0/, in agreement with recent analyses.
Research Organization:
Department of Physics, College of Science, University of Mosul, Mosul, Iraq
OSTI ID:
6585501
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 18:9; ISSN PRVDA
Country of Publication:
United States
Language:
English