Axial-Vector Form Factor of Nucleon Determined from Threshold Electropion Production

Yoichiro Nambu, Motohiko Yoshimura

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40 Citations (Scopus)


Currently available electropion-production data near threshold have been analyzed according to the soft-pion theorem which expresses the threshold cross section in terms of the vector and axial-vector form factors of the nucleon. We determine the axial-vector form factor for q2 up to ∼7 (GeV/c)2.

Original languageEnglish
Pages (from-to)25-28
Number of pages4
JournalPhysical Review Letters
Issue number1
Publication statusPublished - Jan 1 1970
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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