Perturbative Unitarity Constraints on a Supersymmetric Higgs Portal

Authors

Kassahun Betre
Sonia Hedri
Devin Walker, SLAC National Accelerator Laboratory

Document Type

Article

Publication Date

July 2014

Publication Title

arXiv: High Energy Physics - Phenomenology

Disciplines

Elementary Particles and Fields and String Theory | Physics

Abstract

We place perturbative unitarity constraints on both the dimensionful and dimensionless couplings in the Next-to-Minimal Supersymmetric Standard Model Higgs Sector. These constraints, plus the requirement that the singlino and/or Higgsino constitutes at least part of the observed dark matter relic abundance, generate upper bounds on the Higgs and neutralino/chargino mass spectrum. We obtain an upper bound of 12 TeV for the charginos and neutralinos and 20 TeV for the heavy Higgses outside defined fine-tuned regions. By using the NMSSM as a template, we describe a method which replaces naturalness arguments with more rigorous perturbative unitarity arguments to get a better understanding of when new physics will appear.

Comments

Available on arXiv.org: https://arxiv.org/abs/1407.0395

Recommended Citation

Kassahun Betre, Sonia Hedri, and Devin Walker. "Perturbative Unitarity Constraints on a Supersymmetric Higgs Portal" arXiv: High Energy Physics - Phenomenology (2014).