We present a novel source for supersymmetry breaking in orientifold models, and show that it gives a vanishing contribution to the vacuum energy at genus zero and three-half. We also argue that all the corresponding perturbative contributions to the vacuum energy from higher-genus Riemann surfaces vanish identically.
Vanishing perturbative vacuum energy in non-supersymmetric orientifolds / C. Angelantonj, M. Cardella. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 595:1-4(2004), pp. 505-512. [10.1016/j.physletb.2004.06.058]
Vanishing perturbative vacuum energy in non-supersymmetric orientifolds
M. Cardella
2004
Abstract
We present a novel source for supersymmetry breaking in orientifold models, and show that it gives a vanishing contribution to the vacuum energy at genus zero and three-half. We also argue that all the corresponding perturbative contributions to the vacuum energy from higher-genus Riemann surfaces vanish identically.
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