Orientifolds with branes at angles

Abstract

We present supersymmetry breaking four dimensional orientifolds of type IIA strings. The compact space is a torus times a four dimensional orbifold. The orientifold group reflects one direction in each torus. RR tadpoles are cancelled by D6-branes intersecting at angles in the torus and in the orbifold. The angles are chosen such that supersymmetry is broken. The resulting four dimensional theories contain chiral fermions. The tadpole cancellation conditions imply that there are no non-abelian gauge anomalies. The models also contain anomaly-free U(1) factors.

24 pages, 5 figures, references added

Cited by in corpus (55)

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• Getting just the Supersymmetric Standard Model at Intersecting Branes on the Z6-orientifold
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• More Supersymmetric Standard-like Models from Intersecting D6-branes on Type IIA Orientifolds
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• Magnetized Four-Dimensional $Z_2\times Z_2$ Orientifolds
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• Intersecting brane world models from D8-branes on (T^2 x T^4/Z_3)/Omega R_1 type IIA orientifolds
• Local models for intersecting brane worlds
• D-brane, fluxes and chirality
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• The Importance of Being Rigid: D6-Brane Model Building on T6/Z2xZ6' with Discrete Torsion
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• Some Phenomenology of Intersecting D-Brane Models
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• Gauge Unification via Stable Brane Recombination
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