d=4 Attractors, Effective Horizon Radius and Fake Supergravity

dc.creatorFerrara, S.
dc.creatorGnecchi, A.
dc.creatorMarrani, A.
dc.date2008-06-19
dc.date2008-09-02
dc.date.accessioned2026-07-07T12:43:54Z
dc.date.available2026-07-07T12:43:54Z
dc.descriptionWe consider extremal black hole attractors (both BPS and non-BPS) for N=3 and N=5 supergravity in d=4 space-time dimensions. Attractors for matter-coupled N=3 theory are similar to attractors in N=2 supergravity minimally coupled to Abelian vector multiplets. On the other hand, N=5 attractors are similar to attractors in N=4 pure supergravity, and in such theories only 1\N-BPS non-degenerate solutions exist. All the above mentioned theories have a simple interpretation in the first order (fake supergravity) formalism. Furthermore, such theories do not have a d=5 uplift. Finally we comment on the "duality" relations among the attractor solutions of N\geq2 supergravities sharing the same full bosonic sector.
dc.description1+47 pages, 2 Tables. v2: Eqs. (2.3),(2.4) and Footnote 3 added; minor cosmetic changes; to appear in PRD
dc.identifierhttps://arxiv.org/abs/0806.3196
dc.identifierhttp://arxiv.org/abs/0806.3196
dc.identifierPhys.Rev.D78:065003,2008
dc.identifierdoi:10.1103/PhysRevD.78.065003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220581
dc.subjectHigh Energy Physics - Theory
dc.titled=4 Attractors, Effective Horizon Radius and Fake Supergravity
dc.typetext

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