Once more about the $\omega \to 3\pi$ contact term
High Energy Physics - Phenomenology
2019-08-15 v1
Abstract
The manifestations of the contact term and its unitary partners are investigated in the framework of the chiral effective lagrangian theory with vector mesons. We conclude that nowadays the existence and magnitude of the contact term can be extracted neither from theory, nor experiment. The theoretical uncertainty is caused by the one-loop corrections. Some speculations about them lead to the generalized KSRF relation .
Keywords
Cite
@article{arxiv.hep-ph/9502406,
title = {Once more about the $\omega \to 3\pi$ contact term},
author = {E. A. Kuraev and Z. K. Silagadze},
journal= {arXiv preprint arXiv:hep-ph/9502406},
year = {2019}
}
Comments
13 pages, LaTex, without some figures. To appear in Yad. Fiz.