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Higher-dimensional geometric sigma models
dc.creator | Vasilić, Milovan | |
dc.date.accessioned | 2018-03-01T18:43:37Z | |
dc.date.available | 2018-03-01T18:43:37Z | |
dc.date.issued | 1999 | |
dc.identifier.issn | 2470-0010 | |
dc.identifier.issn | 2470-0029 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/2261 | |
dc.description.abstract | Geometric sigma models have been defined as geometric theories of metric excitations of a given background geometry, and then covariantized by identifying the coordinates of space-time with a set of scalar fields. By construction, these theories have the property of accommodating both the scalar matter of pure geometric origin and a ground state specified in advance. Using this fact, one can build a Kaluza-Klein geometric sigma model by specifying the background metric of the form M-4 x B-d, thus obtaining a theory free of the classical cosmological constant problem. Previously exploited ideas to use scalar fields in the form of a nonlinear sigma model coupled to gravity to trigger the compactification failed to give massless gauge fields after dimensional reduction. In this paper, sigma modified geometric a model is suggested, which reconciles the masslessness of the gauge fields with the zero value of the cosmological constant. [S0556-2821(99)03310-6]. | en |
dc.rights | restrictedAccess | en |
dc.source | Physical Review D | en |
dc.title | Higher-dimensional geometric sigma models | en |
dc.type | article | en |
dcterms.abstract | Василиц, М; | |
dc.citation.volume | 60 | |
dc.citation.issue | 2 | |
dc.identifier.wos | 000081467700044 | |
dc.identifier.doi | 10.1103/PhysRevD.60.025003 | |
dc.citation.other | Article Number: 025003 | |
dc.identifier.scopus | 2-s2.0-16444383970 |
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