Geometry of orientifold vacua and supersymmetry breaking
Geometry of orientifold vacua and supersymmetry breaking
A bstract Starting from a peculiar orientifold projection proposed long ago by Angelantonj and Cardella, we elaborate on a novel perturbative scenario that involves only D-branes, together with the two types of orientifold planes O ± and anti-orientifold planes $$ {\overline{\mathrm{O}}}_{\pm } $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mover><mml:mi>O</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mo>±</mml:mo></mml:msub></mml:math> . We elucidate the microscopic …