K_{l4} decays
High Energy Physics - Phenomenology
2014-11-17 v1
Abstract
An effective theory of large N_{C} QCD of mesons has been used to study six K_{l4} decay modes. It has been found that the matrix elements of the axial-vector current dominate the K_{l4} decays. PCAC is satisfied. A relationship between three form factors of axial-vector current has been found. Non-zero phase shifts are originated in \rho-->\pi\pi. The decay rates are calculated in the chiral limit. In this study there is no adjustable parameter.
Keywords
Cite
@article{arxiv.hep-ph/0001258,
title = {K_{l4} decays},
author = {Bing An Li},
journal= {arXiv preprint arXiv:hep-ph/0001258},
year = {2014}
}
Comments
29 pages including 12 figures