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String Theory and Particle Physics by Angel M. Uranga, Luis E. Ibáñez

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11

Type IIB orientifolds

In this chapter we construct orientifolds of type IIB 4d compactifications. There are several constructions in this class, including toroidal orientifolds, systems of D3-branes at singularities, and magnetized D-branes, providing the mirrors of type IIA models in Chapter 10. We also introduce F-theory and its compactifications. These setups provide a rich arena for particle physics model building in string theory.

11.1 Generalities of type IIB orientifold actions

Type IIB orientifolds are obtained by considering IIB theory on a CY X6 and modding out by Ω, where is a geometric symmetry acting holomorphically on the complex ...

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