KKmonopoles and Gstructures in Mtheory/type IIA reductions
Abstract
We argue that Mtheory/massive IIA backgrounds including KKmonopoles are suitably described in the language of Gstructures and their intrinsic torsion. To this end, we study classes of minimal supergravity models that admit an interpretation as twisted reductions in which the twist parameters are not restricted to satisfy the Jacobi constraints ωω = 0 required by an ordinary ScherkSchwarz reduction. We first derive the correspondence between fourdimensional data and torsion classes of the internal space and, then, check the onetoone correspondence between higherdimensional and fourdimensional equations of motion. Remarkably, the whole construction holds regardless of the Jacobi constraints, thus shedding light upon the string/Mtheory interpretation of (smeared) KKmonopoles.
 Publication:

Journal of High Energy Physics
 Pub Date:
 February 2015
 DOI:
 10.1007/JHEP02(2015)096
 arXiv:
 arXiv:1411.0575
 Bibcode:
 2015JHEP...02..096D
 Keywords:

 Flux compactifications;
 Dbranes;
 MTheory;
 High Energy Physics  Theory
 EPrint:
 38 pages, 1 figure, 1 table