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Sequestering in string compactifications
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
2011 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 6, 134- p.Article in journal (Refereed) Published
Abstract [en]

We study the mediation of supersymmetry breaking in string compactifications whose moduli are stabilized by nonperturbative effects. We begin with a critical review of arguments for sequestering in supergravity and in string theory. We then show that geometric isolation, even in a highly warped space, is insufficient to achieve sequestering: in type IIB compactifications, nonperturbative superpotentials involving the Kahler moduli introduce cross-couplings between well-separated visible and hidden sectors. The scale of the resulting soft terms depends on the moduli stabilization scenario. In the Large Volume Scenario, nonperturbative superpotential contributions to the soft trilinear A terms can introduce significant flavor violation, while in KKLT compactifications their effects are negligible. In both scenarios, the contributions to the mu and B mu parameters cannot be ignored in general. We conclude that sequestered supersymmetry breaking is possible in nonperturbatively-stabilized compactifications only if a mechanism in addition to bulk locality suppresses superpotential cross-couplings.

Place, publisher, year, edition, pages
2011. no 6, 134- p.
Keyword [en]
Flux compactifications, Supersymmetry Breaking
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-67568DOI: 10.1007/JHEP06(2011)134ISI: 000293136600061OAI: diva2:470602
authorCount :4Available from: 2011-12-29 Created: 2011-12-29 Last updated: 2011-12-29Bibliographically approved

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Berg, Marcus
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