Related Experiment Video
Updated: Aug 7, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Electroweak baryogenesis in a supersymmetric U(1)' model
Junhai Kang1, Paul Langacker, Tianjun Li
1Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, USA.
Abstract:
We construct an anomaly-free supersymmetric U(1)' model with a secluded U(1)'-breaking sector. We study the one-loop effective potential at finite temperature and show that there exists a strong enough first order electroweak phase transition for electroweak baryogenesis (EWBG) because of the large trilinear term AhhSHdHu in the tree-level Higgs potential. Unlike in the minimal supersymmetric standard model, the lightest top squark can be very heavy. We consider the nonlocal EWBG mechanism in the thin wall regime and find that within uncertainties the observed baryon number can be generated from the tau lepton contribution, with the secluded sector playing an essential role. The chargino and neutralino contributions and the implications for the Z' mass and electric dipole moments are briefly discussed.
Related Concept Videos
Electron Orbital Model
Atomic Nuclei: Nuclear Magnetic Moment
Spin–Spin Coupling: One-Bond Coupling
Coulomb's Law and The Principle of Superposition
The Principle of Superposition answers the question. Yes, Coulomb's Law applies to each pair of charges, and the net force on each charge is the vector sum of the...
Types Of Superconductors
Symmetry in Maxwell's Equations

