Strange results from chiral soliton models

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dc.creatorCherman, Aleksey
dc.creatorCohen, Thomas D.
dc.date2007-01-18
dc.date2007-01-30
dc.date.accessioned2026-07-07T11:02:35Z
dc.date.available2026-07-07T11:02:35Z
dc.descriptionThe standard collective quantization treatment of the strangeness content of the nucleon in chiral soliton models such as the Skyrmion is shown to be inconsistent with the semi-classical expansion on which the treatment is based. The strangeness content vanishes at leading order in the semi-classical expansion. Collective quantization correctly describes some contributions to the strangeness content at the first nonvanishing order in the expansion, but neglects others at the same order--namely, those associated with continuum modes. Moreover, there are fundamental difficulties in computing at a constant order in the expansion due to the non-renormalizable nature of chiral soliton models. Moreover, there are fundamental difficulties in computing at a constant order in the expansion due to the non-renormalizable nature of chiral soliton models and the absence of any viable power counting scheme. We show that the continuum mode contribution to the strangeness diverges, and as a result the computation of the strangeness content at leading non-vanishing order is not a well-posed mathematical problem in these models.
dc.descriptionReference added. Some change of emphasis in the discussion of the role of power counting. 5 pages
dc.identifierhttps://arxiv.org/abs/hep-ph/0701143
dc.identifierhttp://arxiv.org/abs/hep-ph/0701143
dc.identifierPhys.Lett.B651:39-43,2007
dc.identifierdoi:10.1016/j.physletb.2007.05.032
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188301
dc.subjectHigh Energy Physics - Phenomenology
dc.titleStrange results from chiral soliton models
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