Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1996-01-26
Nucl.Phys.B470:113-135,1996
Physics
High Energy Physics
High Energy Physics - Theory
Includes corrections to last section that will appear in the version to be published in Nuclear Physics B. 36 pp. Phyzzx
Scientific paper
10.1016/0550-3213(96)00171-X
We present a version of ten-dimensional IIA supergravity containing a 9-form potential for which the field equations are equivalent to those of the standard, massless, IIA theory for vanishing 10-form field strength, $F_{10}$, and to those of the `massive' IIA theory for non-vanishing $F_{10}$. We present a multi 8-brane solution of these equations that generalizes the 8-brane of Polchinski and Witten. We show that this solution is T-dual to a new multi 7-brane solution of $S^1$ compactified IIB supergravity, and that the latter is T-dual to the IIA 6-brane. When combined with the $Sl(2;\Z)$ U-duality of the type IIB superstring, the T-duality between type II 7-branes and 8-branes implies a quantization of the cosmological constant of type IIA superstring theory. These results are made possible by the construction of a new {\it massive} N=2 D=9 supergravity theory. We also discuss the 11-dimensional interpretation of these type II p-branes.
Bergshoeff Eric
Green Michael B.
Papadopoulos George
Roo Mees de
Townsend Paul K.
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