The Breathing Mode in Extended Skyrme Model
High Energy Physics - Phenomenology
2009-10-22 v1
Abstract
We study an extended Skyrme model which includes fourth and sixth-order terms. We explore some static properties like the -nucleon mass splitting and investigate the Skyrmion breathing mode in the framework of the linear response theory. We find that the monopole response function has a pronounced peak located at 400 MeV, which we identify to the Roper resonance . As compared to the standard one, the extended Skyrme model provides a more accurate description of baryon properties.
Cite
@article{arxiv.hep-ph/9303221,
title = {The Breathing Mode in Extended Skyrme Model},
author = {Abdellatif Abada and Houari Merabet},
journal= {arXiv preprint arXiv:hep-ph/9303221},
year = {2009}
}
Comments
12 pages of plain Latex and 3 figures (available from the authors), preprint IPNO/TH 93-08