On the stability of open-string orbifold models with broken supersymmetry

Abel, Steven; Coudarchet, Thibaut; Partouche, Hervé

Abstract

We consider an open-string realisation of spontaneous breaking of supersymmetry in four-dimensional Minkowski spacetime. It is based on type IIB orientifold theory compactified on , with Scherk–Schwarz supersymmetry breaking implemented along . We show that in the regions of moduli space where the supersymmetry breaking scale is lower than the other scales, there exist configurations with minima that have massless Bose-Fermi degeneracy and hence vanishing one-loop effective potential, up to exponentially suppressed corrections. These backgrounds describe non-Abelian gauge theories, with all open-string moduli and blowing up modes of stabilized, while all untwisted closed-string moduli remain flat directions. Other backgrounds with strictly positive effective potentials exist, where the only instabilities arising at one loop are associated with the supersymmetry breaking scale, which runs away. All of these backgrounds are consistent non-perturbatively.

Citation

Abel, S., Coudarchet, T., & Partouche, H. (2020). On the stability of open-string orbifold models with broken supersymmetry. Nuclear Physics B, 957, Article 115100. https://doi.org/10.1016/j.nuclphysb.2020.115100

• Journal Article Type: Article
• Acceptance Date: Jun 7, 2020
• Online Publication Date: Jun 27, 2020
• Publication Date: 2020-08
• Deposit Date: Jul 1, 2020
• Publicly Available Date: Jul 15, 2020
• Journal: Nuclear Physics B
• Print ISSN: 0550-3213
• Electronic ISSN: 1873-1562
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 957
• Article Number: 115100
• DOI: https://doi.org/10.1016/j.nuclphysb.2020.115100
• Public URL: https://durham-repository.worktribe.com/output/1267319