# The anomalous U(1) global symmetry and flavors from an SU(5) x SU(5)$'$ GUT in $Z_{12-I}$ orbifold compactification

23 Nov 2017 Kim Jihn E. Kyae Bumseok Nam Soonkeon

In string compactifications, frequently there appears the anomalous U(1) gauge symmetry which belonged to E8$\times$E8 of the heterotic string. This anomalous U(1) gauge boson obtains mass at the compactification scale, just below $10^{18\,}$GeV, by absorbing one pseudoscalar (corresponding to the model-independent axion) from the second rank anti-symmetric tensor field $B_{MN}$... (read more)

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• HIGH ENERGY PHYSICS - PHENOMENOLOGY
• HIGH ENERGY PHYSICS - THEORY