Phases of resonant amplitudes: πN → πΔ

D. Faiman, J. Rosner

Research output: Contribution to journalArticlepeer-review

36 Scopus citations


The phases of resonant amplitudes in πN → πΔ are studied in a modified version of SU(6)W in which amplitudes involving different relative orbital angular momenta l are uncoupled form one another. This form of SU(6)W is equivalent to one studied recently by Melosh, in which the set of selection rules for decays is extended to allow for more types of transition than in the original version of this symmetry. The predictions are compared with a recent preliminary analysis by Herndon et al. Even the extended ("l-broken") version of SU(6)W is found to disagree with the present experimental solution. If this solution persists, it constitutes the strongest present evidence against such a symmetry.

Original languageEnglish
Pages (from-to)357-360
Number of pages4
JournalPhysics Letters B
Issue number4
StatePublished - 6 Aug 1973
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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