Faraggi, Alon E. (2005) Moduli fixing in realistic string vacua. Nuclear Physics B, 728 (1-3). pp. 83-108. ISSN 0550-3213
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Cited 6 times in WoS
I illustrate the existence of quasi-realistic heterotic-string models in which all the untwisted Kaehler and complex structure moduli, as well as all of the twisted sectors moduli, are projected out by the generalized GSO projections. I discuss the conditions and characteristics of the models that produce this result. The existence of such models offers a novel perspective on the realization of extra dimensions in string theory. In this view, while the geometrical picture provides a useful mean to classify string vacua, in the phenomenologically viable cases there is no physical realization of extra dimensions. The models under consideration correspond to Z2 X Z2 orbifolds of six dimensional tori, plus additional identifications by internal shifts and twists. The special property of the Z2 X Z2 orbifold is that it may act on the compactified dimensions as real, rather than complex, dimensions. This property enables an asymmetric projection on all six internal coordinates, which enables the projection of all the untwisted Kaehler and complex structure moduli.
|Additional Information:||LTH 646; arXiv Number: arXiv:hep-th/0504016v2. Available online 8 September 2005. Issue: 14 November 2005.|
|Uncontrolled Keywords:||STANDARD-LIKE MODEL; SUPERSTRING DERIVED MODELS; SPONTANEOUSLY BROKEN SUPERSYMMETRY; GAUGE-SYMMETRY BREAKING; FERMIONIC CONSTRUCTION; FLAT DIRECTIONS; 4-DIMENSIONAL SUPERSTRINGS; THRESHOLD CORRECTIONS; THIRRING INTERACTION; PROTON STABILITY|
|Subjects:||Q Science > QC Physics|
|Departments, Research Centres and Related Units:||Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Mathematical Sciences|
|Deposited On:||18 Aug 2008 14:27|
|Last Modified:||20 May 2011 14:29|
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