Comment on "Mass and K Lambda coupling of N*(1535)"
High Energy Physics - Phenomenology
2014-11-18 v1
Abstract
It is argued in [1] that when the strong coupling to the K Lambda channel is considered, Breit-Wigner mass of the lightest orbital excitation of the nucleon N(1535) shifts to a lower value. The new value turned out to be smaller than the mass of the lightest radial excitation N(1440), which effectively solved the long-standing problem of conventional constituent quark models. In this Comment we show that it is not the Breit-Wigner mass of N(1535) that is decreased, but its bare mass. [1] B. C. Liu and B. S. Zou, Phys. Rev. Lett. 96, 042002 (2006).
Cite
@article{arxiv.0904.2292,
title = {Comment on "Mass and K Lambda coupling of N*(1535)"},
author = {S. Ceci and A. Svarc and B. Zauner},
journal= {arXiv preprint arXiv:0904.2292},
year = {2014}
}
Comments
3 pages, comment on "Mass and K Lambda coupling of N*(1535)", B. C. Liu and B. S. Zou, Phys. Rev. Lett. 96, 042002 (2006)