paper

A comment on -branes of () string theory

arXiv:0812.0227 · doi:10.1088/1126-6708/2009/05/057

Abstract

We argue that in ()d string theory the existence of NS-NS type -brane with negative tension is essential to obtain background geometry or on the transverse dimensions, and the usual codimension-2 brane solutions with these background geometries already contain the negative tension NS-brane implicity in their ansatz. Such an argument leads us, in the context of brane world scenarios, to a conjecture that true background -brane immanent in our spacetime may perhaps be NS-NS type brane, rather than D-brane.

16 pages. Version to appear in JHEP

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