Evidence for a dibaryon resonance in the pionic double charge exchange
1992
New measurements of the pionic double charge exchange on56Fe exhibit a pronounced energy dependence of this reaction at low energies in accordance with similar observations on other nuclei. We show that this peculiar energy dependence finds its natural explanation by a resonance in theπNN subsystem withJ p =0−,T=0 and a mass of 2.065 GeV.
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