Gauge coupling unification due to non-universal soft supersymmetry breaking

Gauge coupling unification is studied in the MSSM with non-universal soft supersymmetry breaking terms. If gaugino masses are sufficiently smaller than scalar soft masses and the scalar have also certain types of non-universality, the gauge coupling unification scale can be larger than 3 × 10 16 GeV...

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Bibliographic Details
Published inPhysics letters. B Vol. 329; no. 1; pp. 27 - 32
Main Authors Kobayashi, Tatsuo, Suematsu, Daijiro, Yamagishi, Yoshio
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 1994
Elsevier Science
Subjects
Compactification and four-dimensional models
Exact sciences and technology
General theory of fields and particles
Models beyond the standard model
Physics
Specific theories and interaction models; particle systematics
Supersymmetric models
The physics of elementary particles and fields
Theory of fundamental strings
Unification of couplings; mass relations
Unified field theories and models
Supersymmetric model
Coupling constants
Unified theory
Standard model
String models
Symmetry breaking
Gaugino
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Summary:Gauge coupling unification is studied in the MSSM with non-universal soft supersymmetry breaking terms. If gaugino masses are sufficiently smaller than scalar soft masses and the scalar have also certain types of non-universality, the gauge coupling unification scale can be larger than 3 × 10 16 GeV even within the MSSM contents. String unification may not need a large threshold correction or a large modulus value. We also discuss the relation to the string model building.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(94)90512-6