U(1)' coupling constant at low energies from heterotic orbifolds
arXiv:1901.10102 · doi:10.1016/j.physletb.2019.06.065
Abstract
Additional Abelian gauge interactions are generic to string compactifications. In heterotic string models, gauge coupling unification of such forces and other gauge interactions is natural due to their common origin. In this letter we study systematically the 1-loop running of the coupling constants in effective vacua emerging from Z8 heterotic orbifold compactifications that provide the matter spectrum of the MSSM plus some vectorlike exotics, restricting to vacua that yield a non-anomalous U(1)' symmetry, gauge coupling unification and the observed values of known gauge couplings. We determine the low-energy value of the U(1)' coupling constant for different scales of supersymmetry breakdown. We find that the U(1)' coupling constant is quite restricted in string models to lie in the range 0.46-0.7 for low-scale supersymmetry or 0.44-0.6 in other cases. We argue that the phenomenology of these string vacua should be further explored to solve some extant issues, such as the stability of the Higgs vacuum.
arXiv comment19 pages, 4 figures, 4 tables; v2: matches version published in PLB
References in corpus (43)
- The Physics of Heavy Z' Gauge Bosons
- SARAH 4: A tool for (not only SUSY) model builders
- A Mini-Landscape of Exact MSSM Spectra in Heterotic Orbifolds
- Search for new high-mass phenomena in the dilepton final state using 36 fb of proton-proton collision data at = 13 TeV with the ATLAS detector
- Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb of collisions at = 13 TeV with the ATLAS detector
- The Heterotic Road to the MSSM with R parity
- Family non-universal Z' models with protected flavor-changing interactions
- Discrete R symmetries for the MSSM and its singlet extensions
- Lepton flavor violating Z' explanation of the muon anomalous magnetic moment
- Heterotic mini-landscape (II): completing the search for MSSM vacua in a Z_6 orbifold
- Supersymmetric Standard Model from the Heterotic String (II)
- Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at TeV with the ATLAS detector
- Axial Dark Matter: the case for an invisible Z'
- A study of electroweak vacuum metastability with a singlet scalar dark matter
- Chiral Models of Weak Scale Supersymmetry
- The minimal U(1)' extension of the MSSM
- Non-supersymmetric heterotic model building
- Low Energy Supersymmetry from the Heterotic Landscape
- Mirage Torsion
- The Higgs Mass as a Signature of Heavy SUSY
- The Orbifolder: A Tool to study the Low Energy Effective Theory of Heterotic Orbifolds
- On the anomalous U(1) in free fermionic superstring models
- Search for chargino and neutralino production in final states with a Higgs boson and missing transverse momentum at TeV with the ATLAS detector
- On Moduli Stabilisation and de Sitter Vacua in MSSM Heterotic Orbifolds
- Implications of String Constraints for Exotic Matter and Z' s Beyond the Standard Model
- Search for resonances in the mass distribution of jet pairs with one or two jets identified as -jets in proton--proton collisions at TeV with the ATLAS detector
- Towards Low Energy Physics from the Heterotic String
- (MS)SM-like models on smooth Calabi-Yau manifolds from all three heterotic string theories
- Charting the flavor landscape of MSSM-like Abelian heterotic orbifolds
- A Novel String Derived Z' With Stable Proton, Light-Neutrinos and R-parity violation
- Stability and vacuum energy in open string models with broken supersymmetry
- Moduli stabilization and SUSY breaking in heterotic orbifold string models
- Stabilizing the Higgs potential with a Z
- A Light Z' Heterotic-String Derived Model
- Some phenomenological aspects of a new model
- Light Z' in Heterotic String Standard-like Models
- Grand Unification in the Heterotic Brane World
- MSSM-like models on Z(8) toroidal orbifolds
- Inclusive search for supersymmetry in pp collisions at 13 TeV using razor variables and boosted object identification in zero and one lepton final states
- Electroweak couplings and LHC constraints on alternative models in
- Z' Bosons from E(6): Collider and Electroweak Constraints
- Phenomenological Constraints on Anomaly-Free Dark Matter Models
- Neutrino masses, cosmological inflation and dark matter in a model with type II seesaw mechanism