String Compactification and Unification of Forces
Jihn E. Kim
TL;DR
This paper reviews efforts to derive the Minimal Supersymmetric Standard Model (MSSM) from string orbifold compactifications, focusing on constraints like three families, R parity, and gauge coupling unification.
Contribution
It presents a comprehensive analysis of string orbifold models that satisfy key phenomenological constraints for MSSM realization.
Findings
Successful incorporation of three families and R parity
Presence of vectorlike exotics and Higgs doublets
Threshold corrections influenced by KK modes aid coupling fitting
Abstract
I review our recent attempts toward obtaining the MSSM from string orbifold compactification. The required constraints are the existence of three families and R parity, vectorlike exotics, one pair of Higgs doublets, and the SU(5) hidden sector for dynamical breaking of SUSY toward a GMSB scenario. We also comment on the threshold correction which are influenced by a power law evolution of gauge couplings through the KK radius in non-prime orbifolds and can be used to fit the couplings.
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