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dc.contributor.authorBerkovits, N.-
dc.contributor.authorSeiberg, N.-
dc.identifier.citationJournal of High Energy Physics. Trieste: Int School Advanced Studies, n. 7, 10 p., 2003.-
dc.description.abstractMotivated by Ooguri and Vafa, we study superstrings in flat R-4 in a constant self-dual graviphoton background. The supergravity equations of motion are satisfied in this background which deforms the N = 2 d = 4 flat space super-Poincare algebra to another algebra with eight supercharges. A D-brane in this space preserves a quarter of the supercharges; i.e. N = 1/2 supersymmetry is realized linearly, and the remaining N = 3/2 supersymmetry is realized nonlinearly. The theory on the brane can be described as a theory in noncommutative superspace in which the chiral fermionic coordinates theta(alpha) of N = 1 d = 4 superspace are not Grassman variables but satisfy a Clifford algebra.en
dc.publisherInt School Advanced Studies-
dc.sourceWeb of Science-
dc.subjectsuperstrings and heterotic stringspt
dc.titleSuperstrings in graviphoton background and N=1/2+3/2 supersymmetryen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionInst Adv Study-
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil-
dc.description.affiliationInst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofJournal of High Energy Physics-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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