Light Z' in Heterotic String Standard-like Models

Abstract

The discovery of the Higgs boson at the LHC supports the hypothesis that the Standard Model provides an effective parameterisation of all subatomic experimental data up to the Planck scale. String theory, which provides a viable perturbative approach to quantum gravity, requires for its consistency the existence of additional gauge symmetries beyond the Standard Model. The construction of heterotic--string models with a viable light $Z^{\prime }$ is, however, highly constrained. We outline the construction of standard--like heterotic--string models that allow for an additional Abelian gauge symmetry that may remain unbroken down to low scales. We present a string inspired model, consistent with the string constraints.

14 pages, 1 figure, v2: minor changes, added 2 references

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Cited by in corpus (16)

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• The 750 GeV diphoton LHC excess and Extra Z's in Heterotic-String Derived Models
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• Extra $Z^{\prime }$s and $W^{\prime }$s in Heterotic--String Derived Models
• The Flipped SU(5) String Vacua Classification: A Variation Of The SO(10) Breaking Basis Vector
• New mechanism for Type-II seesaw dominance in SO(10) with low-mass Z-prime, RH neutrinos, and verifiable LFV, LNV, and proton decay
• The LHC di-photon excess and Gauge Coupling Unification in Extra $Z^{\prime }$ Heterotic-String Derived Models
• Blind Spots for Direct Detection with Simplified DM Models and the LHC
• Sterile Neutrinos in String Derived Models
• Niemeier Lattices in the Free Fermionic Heterotic-String Formulation
• The Observed Diphoton Excess in F-theory Inspired Heterotic String-Derived Model
• U(1)' coupling constant at low energies from heterotic orbifolds
• Axions And Self-Interacting Dark Matter In The Heterotic String-Derived Model
• String Phenomenology: Past, Present and Future Perspectives
• Light $U(1)$s in heterotic string models