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Analytic Properties of Current-Algebra Vertex Functions

  • Author(s): Bander, Myron
  • et al.
Abstract

An expansion of the vector-current vertex is obtained in terms of the Joos spinor amplitudes. As these are free of kinematic singularities, one can remove them from the vertex that enters into the algebra-of-currents sum rules. If one assumes unsubtracted dispersion relations for the resulting form factors, then the sum rules can be cast into a form which involves Bessel transforms of these form factors. © 1968 The American Physical Society.

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