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dc.contributor.authorBergshoeff, Eric A.-
dc.contributor.authorHartong, Jelle-
dc.contributor.authorHübscher, Mechthild-
dc.contributor.authorOrtín Miguel, Tomás-
dc.identifier.citationJournal of High Energy Physics 05: 033 (2007)es_ES
dc.description34 páginas.-- El PDF es el artículo en su versión pre-print.-- arXiv: 0711.0857v2es_ES
dc.description.abstractWe extend the system of ungauged N = 2, d = 4 supergravity coupled to vector multiplets and hypermultiplets with 2-form potentials. The maximal number of 2-form potentials that one may introduce is equal to the number of isometries of either the special Kähler or quaternionic Kähler sigma model. We show that the local supersymmetry algebra can be realized on the 2-form potentials. These 2-forms couple electrically to strings which we refer to as stringy cosmic strings. The 1/2 BPS bosonic world-sheet actions for these strings are constructed and we discuss the properties of the 1/2 BPS stringy cosmic string solutions.es_ES
dc.description.sponsorshipThis work has been supported in part by the Spanish Ministry of Science and Education grants FPA2006-00783 and PR2007-0073 (TO), the Comunidad de Madrid grant HEPHACOS P-ESP-00346 and by the EU Research Training Network Constituents, Fundamental Forces and Symmetries of the Universe MRTN-CT-2004-005104 in which E.B. and J.H. are associated to the University of Utrecht andM.H. and T.O. are associated to the University Autónoma deMadrid. J.H. was supported by a Breedte Strategie grant of the University of Groningen and wishes to thank the Instituto de Física Teórica of the Universidad Autónoma de Madrid for its hospitality and financial support. M.H. is supported by the Spanish Ministry of Science and Education grant FPU AP2004-2574.es_ES
dc.publisherInstitute of Physics Publishinges_ES
dc.subjectExtended supersymmetryes_ES
dc.subjectString theory and cosmic stringses_ES
dc.titleStringy cosmic strings in matter coupled N = 2, d = 4 supergravityes_ES
dc.description.peerreviewedPeer reviewedes_ES
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