Eur. Phys. J. A 10, 237-244
decaysBing An Li
Department of Physics and Astronomy, University of Kentucky Lexington, KY 40506, USA email@example.com
(Received: 17 October 2000 / Revised version: 12 February 2001 Communicated by W. Weise)
An effective theory of large-NC QCD of pseudoscalar, vector, and axial-vector mesons has been used to study six Kl4 decay modes. It has been found that the matrix elements of the axial-vector current dominate the Kl4 decays. PCAC is satisfied. A relationship between three form factors of the axial-vector current has been predicted. Partial-wave analysis has been done. Non-zero phase shifts are originated in . The decay rates are calculated in the chiral limit. In this study there is no adjustable parameter.
13.25.-R - Hadronic decays of mesons.
© Società Italiana di Fisica, Springer-Verlag 2001