Soft-pion theorems and a light-cone quark model

Z. J. Cao, L. S. Kisslinger

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


It is shown that in a light-cone representation of nucleons soft-pion theorems which are violated in instant-form quark models can be recovered with suitable choices of parameters of the model. Instantaneous terms must be included for the soft-pion limit. The proton form factors are fit up to q2=3 (GeV/c)2 in this model.

Original languageEnglish (US)
Pages (from-to)1007-1010
Number of pages4
JournalPhysical Review Letters
Issue number9
StatePublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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