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Journal of High Energy Physics

, 2011:47 | Cite as

Sparticle spectrum of large volume compactification

  • Kiwoon Choi
  • Hans Peter Nilles
  • Chang Sub Shin
  • Michele Trapletti
Article

Abstract

We examine the large volume compactification of Type IIB string theory or its F theory limit and the associated supersymmetry breakdown and soft terms. It is crucial to incorporate the loop-induced moduli mixing, originating from radiative corrections to the Kähler potential. We show that in the presence of moduli mixing, soft scalar masses generically receive a D-term contribution of the order of the gravitino mass m 3/2 when the visible sector cycle is stabilized by the D-term potential of an anomalous U(1) gauge symmetry, while the moduli-mediated gaugino masses and A-parameters tend to be of the order of m 3/2/8π 2. It is noticed also that a too large moduli mixing can destabilize the large volume solution by making it a saddle point.

Keywords

Flux compactifications Supersymmetry Breaking Supergravity Models 

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Copyright information

© SISSA, Trieste, Italy 2011

Authors and Affiliations

  • Kiwoon Choi
    • 1
  • Hans Peter Nilles
    • 2
  • Chang Sub Shin
    • 1
  • Michele Trapletti
    • 2
  1. 1.Department of PhysicsKorea Advanced Institute of Science and TechnologyDaejeonS. Korea
  2. 2.Bethe Center for Theoretical Physics and Physikalisches InstitutUniversität BonnBonnGermany

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