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arXiv · 1311.4454

Baryonic sphere: a spherical domain wall carrying baryon number

Sven Bjarke Gudnason·Muneto Nitta
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Abstract

We construct a spherical domain wall which has baryon charge distributed on a sphere of finite radius in a Skyrme model with a sixth order derivative term and a modified mass term. Its distribution of energy density likewise takes the form of a sphere. In order to localize the domain wall at a finite radius we need a negative coefficient in front of the Skyrme term and a positive coefficient of the sixth order derivative term to stabilize the soliton. Increasing the pion mass pronounces the shell-like structure of the configuration.

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Sven Bjarke Gudnason, Muneto Nitta. 2013-11-18. Baryonic sphere: a spherical domain wall carrying baryon number. https://doi.org/10.1103/physrevd.89.025012

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