Eur. Phys. J. A 10, 237-244
decays
Bing An Li Department of Physics and Astronomy, University of Kentucky Lexington, KY 40506, USA This email address is being protected from spambots. You need JavaScript enabled to view it.
(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
