Light-cone expansion, current algebra and σ-commutators

N. Andrei, L. Gomberoff

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


It has been shown recently that, in order to have consistency between some current algebra sum rules, the light-cone expansion leading to Bjorken scaling has to be modified. The required modifications are shown to be consistent with current algebra, but lead to a new scaling regime and to Schwinger terms in σ-commutators. These Schwinger terms appear only in commutators involving nonconserved currents, and may, therefore, provide a natural explanation for the large value of ξ in Kt3-decay, without destroying any of the successful predictions based on current algebra.

Original languageEnglish (US)
Pages (from-to)277-288
Number of pages12
JournalIl Nuovo Cimento A Series 11
Issue number2
StatePublished - May 1974
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics


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