Ten pi+pi- resonances with masses between 347 and 1285 MeV/c2 were identified at Dubna
in the reaction np --> np pi+pi- at a neutron incident momentum of 5.2 GeV/c in the 1-m HBC of LHE JINR.
The states were all estimated to be I=0, and for three of them the spin was established as J=0,
so that they were considered sigma(0) candidates with quantum numbers 0+(0++).
In the present work the masses of these 10 resonances are analyzed with reference
to an existing meson mass quantization scheme derived from a statistical analysis of the spectrum.
...
PACS:
12.40.Yx Hadron mass models and calculations
14.40.-n Mesons
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original v1: 2005-06-26
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