Quark/gluon content of eta(1295) and eta(1440)
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
The quark/gluon content of eta(1295) and eta(1440) mesons is discussed, mesons being considered as members of the first radial excitation 2^1S_0 qqbar nonet. Recent results on eta(1295) and eta(1440) two-photon widths from L3 together with the information on radiative J/Psi decay allow one to evaluate the eta(1295)/eta(1440) mixing angle and the admixture of the glueball component. We found that eta(1440) is dominantly non-strange qqbar state, with a possible admixture of the glueball component (20 pm 20)%.
Cite
@article{arxiv.hep-ph/0104005,
title = {Quark/gluon content of eta(1295) and eta(1440)},
author = {A. V. Anisovich},
journal= {arXiv preprint arXiv:hep-ph/0104005},
year = {2007}
}
Comments
8 pages, 3 figures