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 F0. Using this, we find a procedure to deform any O6-D6 Minkowski compactification at first order in F0. 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. © SISSA 2012.

Saracco, F., Tomasiello, A. (2012). Localized O6-plane solutions with Romans mass. JOURNAL OF HIGH ENERGY PHYSICS, 2012(7) [10.1007/JHEP07(2012)077].

Localized O6-plane solutions with Romans mass

SARACCO, FABIO;TOMASIELLO, ALESSANDRO
2012

Abstract

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 F0. Using this, we find a procedure to deform any O6-D6 Minkowski compactification at first order in F0. 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. © SISSA 2012.
Articolo in rivista - Articolo scientifico
Flux compactifications; p-branes; D-branes; Superstring Vacua
English
2012
2012
7
none
Saracco, F., Tomasiello, A. (2012). Localized O6-plane solutions with Romans mass. JOURNAL OF HIGH ENERGY PHYSICS, 2012(7) [10.1007/JHEP07(2012)077].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/48094
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