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Q7-branes and their coupling to IIB supergravity

AuthorsBergshoeff, Eric; Hartong, Jelle ; Sorokin, Dmitri Y.
KeywordsAbelian Born-Infeld
Domain walls
6 Dimensions
Issue Date20-Dec-2007
PublisherInternational School for Advanced Studies
Institute of Physics Publishing
CitationJournal of High Energy Physics 12: 079 (2007)
AbstractWe show how, by making use of a new basis of the IIB supergravity axiondilaton coset, SL(2,R)/SO(2), 7-branes that belong to different conjugacy classes of the duality group SL(2, R) naturally couple to IIB supergravity with appropriate source terms characterized by an SL(2,R) charge matrix Q. The conjugacy classes are determined by the value of the determinant of Q. The (p, q) 7-branes are the branes in the conjugacy class det Q = 0. The 7-branes in the conjugacy class det Q > 0 are labelled by three numbers (p, q, r) which parameterize the matrix Q and will be called Q7-branes. We construct the full bosonic Wess-Zumino term for the Q7-branes. In order to realize a gauge invariant coupling of the Q7-brane to the gauge fields of IIB supergravity it is necessary to introduce an SL(2, R) doublet of two distinct Born-Infeld fields on the Q7-brane world-volume.
Description31 pages, 1 figure.-- ISI Article Identifier: 000252246500079.-- ArXiv pre-print available at: http://arxiv.org/abs/0708.2287
Publisher version (URL)http://dx.doi.org/10.1088/1126-6708/2007/12/079
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