Chemical potential as a source of stability for gravitating Skyrmions

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dc.creatorLoewe, M.
dc.creatorMendizabal, S.
dc.creatorRojas, J. C.
dc.date2006-08-10
dc.date2006-09-13
dc.date.accessioned2026-07-07T11:27:04Z
dc.date.available2026-07-07T11:27:04Z
dc.descriptionA discussion of the stability of self gravitating Skyrmions, with a large winding number N, in a Schwarzschild type of metric, is presented for the case where an isospin chemical potential is introduced. It turns out that the chemical potential stabilizes the behavior of the Skyrmion discussed previously in the literature. This analysis is carried on in the framework of a variational approach using different ansaetze for the radial profile of the Skyrmion. We found a divergent behavior for the size of the Skyrmion, associated to a certain critical value $μ_c$ of the chemical potential. At this point, the mass of the Skyrmion vanishes. $μ_c$ is essentialy independent of gravitating effects. The stability of a large N skyrmion against decays into single particles is also discussed.
dc.description10 pages, 4 figures Small changes to the previous version and a new reference
dc.identifierhttps://arxiv.org/abs/hep-ph/0608125
dc.identifierhttp://arxiv.org/abs/hep-ph/0608125
dc.identifierMod.Phys.Lett.A22:3003-3011,2007
dc.identifierdoi:10.1142/S0217732307023535
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196036
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleChemical potential as a source of stability for gravitating Skyrmions
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