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Do we really understand theA1ρπsystem?

Authors
Journal
Nuclear Physics B
0550-3213
Publisher
Elsevier
Publication Date
Volume
6
Issue
6
Identifiers
DOI: 10.1016/0550-3213(68)90179-x
Disciplines
  • Mathematics

Abstract

Abstract It is shown, by assuming the dominance of nearby singularities in subtracted dispersion relations, that the calculation of A 1 ρ π couplings goes beyond the informations extracted from current-commutator algebras or divergence equations. The results are compared with present data on the ρ o → μ + μ −, A 1 → ρ π and ρ → ππ decays, the pion charge radius and the axial vector structure radiation of charged pions.

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