Soft supersymmetry breaking in KKLT flux compactification
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Publication:875854
DOI10.1016/J.NUCLPHYSB.2005.04.032zbMATH Open1207.81107arXivhep-th/0503216OpenAlexW2060851574MaRDI QIDQ875854
Author name not available (Why is that?)
Publication date: 16 April 2007
Published in: (Search for Journal in Brave)
Abstract: We examine the structure of soft supersymmetry breaking terms in KKLT models of flux compactification with low energy supersymmetry. Moduli are stabilized by fluxes and nonperturbative dynamics while a de Sitter vacuum is obtained by adding supersymmetry breaking anti-branes. We discuss the characteristic pattern of mass scales in such a set-up as well as some features of 4D N=1 supergravity breakdown by anti-branes. Anomaly mediation is found to always give an important contribution and one can easily arrange for flavor-independent soft terms. In its most attractive realization, the modulus mediation is comparable to the anomaly mediation, yielding a quite distinctive sparticle spectrum. In addition, the axion component of the modulus/dilaton superfield dynamically cancels the relative CP phase between the contributions of anomaly and modulus mediation, thereby avoiding dangerous SUSY CP violation.
Full work available at URL: https://arxiv.org/abs/hep-th/0503216
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