How to Reach the Correct sin^2θ_W and α_S in String Theory

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dc.creatorNilles, H. P.
dc.creatorStieberger, S.
dc.date1995-10-03
dc.date.accessioned2026-07-07T11:14:47Z
dc.date.available2026-07-07T11:14:47Z
dc.descriptionEffective theories with the matter content of the minimal supersymmetric Standard Model below the string scale M_string predict a wrong value for the weak--mixing angle sin^2θ_W and strong coupling constant α_S at the scale M_Z. To resolve this problem one needs large threshold corrections. At the same time one would like to avoid introducing new intermediate scales that are small compared to M_string. Two requests which seem to be incompatible. We show how both requirements can be satisfied in a class of (0,2) heterotic superstring compactifications with a natural choice of the vevs of the moduli fields entering the moduli dependent string threshold corrections.
dc.description11 LaTex pages with 2 figures
dc.identifierhttps://arxiv.org/abs/hep-th/9510009
dc.identifierhttp://arxiv.org/abs/hep-th/9510009
dc.identifierPhys.Lett.B367:126-133,1996
dc.identifierdoi:10.1016/0370-2693(95)01400-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192191
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHow to Reach the Correct sin^2θ_W and α_S in String Theory
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