Rotational-vibrational coupling in the BPS Skyrme model of baryons
High Energy Physics - Theory
2015-06-16 v2 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We calculate the rotational-vibrational spectrum in the BPS Skyrme model for the hedgehog skyrmion with baryon number one. The resulting excitation energies for the nucleon and delta Roper resonances are slightly above their experimental values. Together with the fact that in the standard Skyrme model these excitation energies are significantly lower than the experimental ones, this provides strong evidence for the conjecture that the inclusion of the BPS Skyrme model is necessary for a successful quantitative description of physical properties of baryons and nuclei.
Keywords
Cite
@article{arxiv.1306.6337,
title = {Rotational-vibrational coupling in the BPS Skyrme model of baryons},
author = {C. Adam and C. Naya and J. Sanchez-Guillen and A. Wereszczynski},
journal= {arXiv preprint arXiv:1306.6337},
year = {2015}
}
Comments
Latex, 9 pages. v2: some references added