Optical Unification
نویسندگان
چکیده
منابع مشابه
Optical Unification
We discuss string scale unification facilitated by exotic matter with masses at intermediate scales, between the observable sector supersymmetry breaking scale and the string scale. We point out a mechanism by which string scale unification may occur while producing a (lower) virtual unification scale independent of the location of the intermediate scale and the value of the string coupling. Th...
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The lower limit to string coupling unification in weakly coupled heteroticstrings was shown by Kaplunovsky to be around ΛH ∼ 5 × 1017 GeV. Incontrast, under the scenario of an intermediate scale desert, the SU(3)C ×SU(2)L × U(1)Y ([321]) Minimal Supersymmetric Standard Model (MSSM)unification scale is ΛU ∼ 2.5 × 1016 GeV. Optical unification was proposed by Giedt as a ro...
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Recently J. Giedt discussed a mechanism, entitled optical unification, whereby string scale unification is facilitated via exotic matter with intermediate scale mass. This mechanism guarantees that a virtual MSSM unification below the string scale is extrapolated from the running of gauge couplings upward from MZo when an intermediate scale desert is assumed. In this letter we explore the possi...
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For the weakly coupled heterotic string (WCHS) there is a well-known factorof twenty conflict between the minimum string coupling unification scale, ΛH ∼5×1017 GeV, and the projected MSSM gauge coupling unification scale, ΛU ∼2.5×1016 GeV, assuming an intermediate scale desert (ISD). From a bottom-upapproach, renormalization effects of intermediate scale MSSM-charged exotics...
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ژورنال
عنوان ژورنال: Modern Physics Letters A
سال: 2003
ISSN: 0217-7323,1793-6632
DOI: 10.1142/s0217732303011514