Skyrmions and the pion mass

Richard A. Battye, Paul M. Sutcliffe

    Research output: Contribution to journalArticlepeer-review


    We present numerical evidence that suggests the introduction of a nonzero pion mass might dramatically affect the structure of minimal energy skyrmions. It appears that the shell-like skyrmions which are the minima when the pions are massless can fail to be minimal energy bound states for particular baryon numbers, with a strong dependence upon the value of the pion mass. The effects of a pion mass may include the replacement of shell-like configurations with crystal chunks and the loss of shell-like bound states with baryon numbers five and eight; which is in agreement with expectations based on real nuclei. © 2004 Elsevier B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)384-400
    Number of pages16
    Issue number1-2
    Publication statusPublished - 17 Jan 2005


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