Search for $Z^{\prime }$, vacuum (in)stability and hints of high-energy structures

Abstract

We study the high-energy behaviour of a class of anomaly-free abelian extensions of the Standard Model. We focus on the interplay among the phenomenological characterisation of the model and the use of precise renormalisation group methods. Using as boundary conditions regions of the parameter space at the verge of current LHC probe, interesting unification patterns emerge linked to thresholds belonging to a SO(10) grand unification theory (GUT). We stress how the evolution of the mixing between the two abelian factors may provide a valuable tool to address the candidate high-energy embedding. The emerging unification scenarios are then challenged to be perturbative and to allow for a stable vacuum.

arXiv comment6 pages, 9 figures

References in corpus (15)

• The Physics of Heavy Z' Gauge Bosons
• HiggsBounds: Confronting Arbitrary Higgs Sectors with Exclusion Bounds from LEP and the Tevatron
• HiggsSignals: Confronting arbitrary Higgs sectors with measurements at the Tevatron and the LHC
• Phenomenology of the minimal B-L extension of the Standard model: Z' and neutrinos
• Minimal Z' models: present bounds and early LHC reach
• Higgs and Z' Phenomenology in B-L extension of the Standard Model at LHC
• Physical Parameters and Renormalization of U(1)_a x U(1)_b Models
• A Renormalisation Group Equation Study of the Scalar Sector of the Minimal B-L Extension of the Standard Model
• Phenomenology of the minimal $B-L$ extension of the Standard Model: the Higgs sector
• Z' at the LHC: Interference and Finite Width Effects in Drell-Yan
• Vacuum Stability in U(1)-Prime Extensions of the Standard Model with TeV Scale Right Handed Neutrinos
• Constraints on Abelian Extensions of the Standard Model from Two-Loop Vacuum Stability and $U(1{)}_{B-L}$
• $Z^{\prime }$, Higgses and heavy neutrinos in $U(1{)}^{\prime }$ models: from the LHC to the GUT scale
• Forward-Backward Asymmetry as a Discovery Tool for Z' Bosons at the LHC
• Embedding Zprime models in SO(10) GUTs

Cited by in corpus (2)

• Extra Higgs Boson and $Z^{\prime }$ as Portals to Signatures of Heavy Neutrinos at the LHC
• A combined approach to the analysis of space and ground experimental data within a simplified E6SSM