pith. sign in

arxiv: hep-ph/9910321 · v1 · submitted 1999-10-13 · ✦ hep-ph

Partial widths for the decays eta(1295) -> gamma gamma and eta(1440) -> gamma gamma

classification ✦ hep-ph
keywords gammapartialwidthscomponentmesonsamplitudesassumptioncalculations
0
0 comments X
read the original abstract

We discuss gamma gamma partial widths of pseudoscalar/isoscalar mesons eta(M) in the mass region M = 1000-1500 MeV. The transition amplitudes eta(1295) -> gamma gamma and eta(1440) -> gamma gamma are studied within an assumption that the decaying mesons are the members of the first radial excitation nonet 2^1S_0 q\bar q. The calculations show that partial widths being of the order of 0.1 keV are dominantly due to the n\bar n meson component while the contribution of the s\bar s component is small.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.