545 citations · 5k across the 194 of their papers we have counts for
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Kaluza-Klein masses in nonprime orbifolds: Z(12-I) compactification and threshold correction
Jihn E. Kim, Bumseok Kyae
Analyzing the one-loop partition function, we discuss possible Kaluza-Klein (KK) states in the orbifold compactification of the heterotic string theory, toward the application to t…
Axion as a CDM component
Jihn E. Kim
I discuss the essential features of the QCD axion: the strong CP solution and hence its theoretical necessity. I also review the effects of the QCD axion on astrophysics and cosmol…
Galactic 511 keV line from MeV millicharged dark matter
Ji-Haeng Huh, Jihn E. Kim, Jong-Chul Park +1
We present a possible explanation of the recently observed 511 keV -ray anomaly with a new ``millicharged'' fermion. The new fermion is light () but has nev…
SO(10)-like Superstring Standard Model with R-parity from the Heterotic String
Jihn E. Kim, Ji-Hun Kim, Bumseok Kyae
We construct a supersymmetric standard model in the context of the Z_{12-I} orbifold compactification of the E_8 x E_8' heterotic string theory. The gauge group is SU(3)_c x SU(2)_…
GMSB at a stable vacuum and MSSM without exotics from heterotic string
Jihn E. Kim
We show that it is possible to introduce the confining hidden sector gauge group SU(5)' with the chiral matter 10 plus 5-bar, which are neutral under the standard model gauge group…
Z_{12-I} Orbifold Compactification toward SUSY Standard Model
Jihn E. Kim
We explain the orbifold compactification in string models and present a Z_{12-I} orbifold compactification toward supersymmetric standard models. We also point out an effective R-p…