Skyrmions and the Pion Mass
نویسندگان
چکیده
We present numerical evidence that suggests the introduction of a non-zero 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 shelllike bound states with baryon numbers five and eight; which is in agreement with expectations based on real nuclei.
منابع مشابه
ar X iv : h ep - t h / 04 11 05 2 v 1 4 N ov 2 00 4 SKYRMIONS , INSTANTONS , MASS AND CURVATURE
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