English

Loosening up the Skyrme model

High Energy Physics - Theory 2016-03-28 v2 Nuclear Theory

Abstract

We consider the Skyrme model with the addition of extra scalar potentials that decrease the classical binding energies of the Skyrmions to about the 3% level -- without altering the pion mass -- if we insist on keeping platonic symmetries that are usually possessed by Skyrmions. A side effect of the potentials under consideration is the smaller size of the 1-Skyrmion resulting in a smaller moment of inertia and in turn a larger spin contribution to the energy upon semi-classical quantization. After taking into account the quantum contributions we find total binding energies at the 6% level.

Keywords

Cite

@article{arxiv.1601.05024,
  title  = {Loosening up the Skyrme model},
  author = {Sven Bjarke Gudnason},
  journal= {arXiv preprint arXiv:1601.05024},
  year   = {2016}
}

Comments

RevTeX: 35 pages, 16 figures; V2: references added and typos corrected

R2 v1 2026-06-22T12:32:49.960Z