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Baryonic sphere: A spherical domain wall carrying baryon number
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
2014 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 89, no 2, 025012- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2014. Vol. 89, no 2, 025012- p.
Keyword [en]
Q-Kinks, Skyrmions, Models, Multiskyrmions, Dimensions, Solitons, Matter
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-143730DOI: 10.1103/PhysRevD.89.025012ISI: 000331845900015Scopus ID: 2-s2.0-84894456447OAI: oai:DiVA.org:kth-143730DiVA: diva2:708393
Note

QC 20140327

Available from: 2014-03-27 Created: 2014-03-27 Last updated: 2017-12-05Bibliographically approved

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Gudnason, Sven Bjarke
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