TY  - JOUR
Y1  - 2012///
KW  - Flux compactifications
KW  -  P-branes
KW  -  D-branes
KW  -  Superstring Vacua
AV  - public
TI  - Localized O6-plane solutions with Romans mass
JF  - Journal of High Energy Physics
IS  - 7
UR  - http://dx.doi.org/10.1007/JHEP07%282012%29077
SN  - 1029-8479
PB  - Springer-Verlag
A1  - Saracco, Fabio
A1  - Tomasiello, Alessandro
N2  - Orientifold solutions have an unphysical region around their source; for the O6, the singularity is resolved in M-theory by the Atiyah-Hitchin metric. Massive IIA, however, does not admit an eleven-dimensional lift, and one wonders what happens to the O6 there. In this paper, we find evidence for the existence of localized (unsmeared) O6 solutions in presence of Romans mass, in the context of four-dimensional compactifications. As a first step, we show that for generic supersymmetric compactifications, the Bianchi identity for the F 4 RR field follows from constancy of F 0. Using this, we find a procedure to deform any O6-D6 Minkowski compactification at first order in F 0. For a single O6, some of the symmetries of the massless solution are broken, but what is left is still enough to obtain a system of ODEs with as many variables as equations. Numerical analysis indicates that Romans mass makes the unphysical region disappear.
ID  - eprints2904
VL  - 2012
ER  -