Eur. Phys. J. A 10, 237-244
decays
Bing An Li Department of Physics and Astronomy, University of Kentucky Lexington, KY 40506, USA li@ukcc.uky.edu
(Received: 17 October 2000 / Revised version: 12 February 2001 Communicated by W. Weise)
Abstract
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
