Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 68, Issue 3-4, Pages 539-559Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-010-1377-4
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- Laboratoire de la Direction des Sciences de la Matiere du Commissariat a l'Energie Atomique
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We search for supersymmetric standard model realizations with extra singlets and extra U(1) using the heterotic string compactification on the Z(6-II) orbifold with two Wilson lines. The effective superpotential produced through the vacuum restabilization mechanism is examined for three representative Pati-Salam string models obtained in the literature. An automated selection of semi-realistic vacua along flat directions in the non-Abelian singlet modes field space is performed by requiring the presence of massless pairs of electroweak Higgs bosons having trilinear superpotential couplings with massless singlet modes and the decoupling of color triplet exotic modes needed to suppress B and L number violating processes.
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