Recent -production experiments and the predictions of chiral symmetry

D. A. Geffen, Thomas F Walsh

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We show that the recent electron-positron colliding-beam experiment at Novosibirsk and -photoproduction experiment at Deutsches Elektronen-Synchrotron yield couplings which are consistent with the predictions of simple SU(2)SU(2) effective Lagrangian theories containing an axial-vector meson. This includes the prediction of the virtual mass dependence of .

Original languageEnglish (US)
Pages (from-to)1536-1538
Number of pages3
JournalPhysical Review Letters
Issue number26
StatePublished - Dec 1 1968


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