Skyrmions in the presence of isospin chemical potential

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dc.creatorPonciano, J. A.
dc.creatorScoccola, N. N.
dc.date2007-06-06
dc.date.accessioned2026-07-07T11:16:40Z
dc.date.available2026-07-07T11:16:40Z
dc.descriptionWe analyze the existence of localized finite energy topological excitations on top of the perturbative pion vacuum within the Skyrme model at finite isospin chemical potential and finite pion mass. We show that there is a critical isospin chemical potential $μ_I^c$ above which such solutions cease to exist. We find that $μ_I^c$ is closely related to the value of the pion mass. In particular for vanishing pion mass we obtain $μ_I^c=0$ in contradiction with some results recently reported in the literature. We also find that below $\mui^c$ the skyrmion mass and baryon radius show, at least for the case of the hedgehog ansatz, only a mild dependence on the isospin chemical potential.
dc.description8 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0706.0865
dc.identifierhttp://arxiv.org/abs/0706.0865
dc.identifierPhys.Lett.B659:551-554,2008
dc.identifierdoi:10.1016/j.physletb.2007.11.047
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192747
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSkyrmions in the presence of isospin chemical potential
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