Vanishing Perturbative Vacuum Energy in Non-Supersymmetric Orientifolds
arXiv:hep-th/0403107 · doi:10.1016/j.physletb.2004.06.058
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.
arXiv comment13 pages, 1 figure. Final discussion and Refs added
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