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@ARTICLE{Cicoli:152238,
      author       = {Cicoli, Michele and de Alwis, Senarath and Westphal,
                      Alexander},
      title        = {{H}eterotic {M}oduli {S}tabilization},
      reportid     = {DESY-2013-00139, DESY-13-066},
      series       = {Red Report},
      year         = {2013},
      note         = {42 pages, 1 figure},
      abstract     = {We perform a systematic analysis of moduli stabilization
                      for weakly coupled heterotic string theory compactified on
                      smooth Calabi-Yau three-folds. We focus on both
                      supersymmetric and supersymmetry breaking vacua of generic
                      (0,2) compactifications obtained by minimising the total (F
                      + D)-term scalar potential. After reviewing how to stabilise
                      all the geometric moduli in a supersymmetric way by
                      including fractional fluxes, non-perturbative and threshold
                      effects, we show that the inclusion of $\alpha'$ corrections
                      leads to new de Sitter or nearly Minkowski vacua which break
                      supersymmetry spontaneously. The minimum lies at moderately
                      large volumes of all the geometric moduli, at perturbative
                      values of the string coupling and at the right
                      phenomenological value of the GUT gauge coupling. However
                      the structure of the heterotic 3-form flux used for complex
                      structure moduli stabilization does not contain enough
                      freedom to tune the superpotential. This results in the
                      generic prediction of high-scale supersymmetry breaking
                      around the GUT scale. We finally provide a dynamical
                      derivation of anisotropic compactifications with stabilized
                      moduli which allow for perturbative gauge coupling
                      unification around $10^16$ GeV.},
      cin          = {T},
      cid          = {I:(DE-H253)T-20120731},
      pnm          = {514 - Theoretical Particle Physics (POF2-514)},
      pid          = {G:(DE-HGF)POF2-514},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25 / PUB:(DE-HGF)15},
      url          = {https://bib-pubdb1.desy.de/record/152238},
}