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VOLUME 49 (1989) | ISSUE 5 | PAGE 241
New vector state near the \vec NN threshold
The coupled-channel model is used to describe experimental data which confirm the earlier prediction that a minimum could appear on the cross section for multipion e+e~ annihilation near the NN threshold. Analysis of an irregularity which is observed points to the existence of a narrow vector state which corresponds to the 2335, state in a system with a mass of about 1800 MeV and a width on the order of 15 MeV.