Raising the Higgs mass with Yukawa couplings for isotriplets in vectorlike extensions of minimal supersymmetry

2010/06/21 by Stephen P. Martin · 3 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Coupling (piping) #Dark Matter and Cosmic Phenomena #Electroweak interaction #Fermion #Gauge (firearms) #Higgs boson #Minimal Supersymmetric Standard Model #Particle physics #Particle physics theoretical and experimental studies #Physics #Standard Model (mathematical formulation) #Supersymmetry #Yukawa potential #hep-ph

paper · pdf · doi:10.1103/physrevd.82.055019

published as Phys.Rev.D82:055019,2010 · 30 pages

arxiv created 2010/06/21 · openalex publication_date 2010/09/23 · arxiv updated 2014/11/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Extra vectorlike matter with both electroweak-singlet masses and large Yukawa couplings can significantly raise the lightest Higgs boson mass in supersymmetry through radiative corrections. I consider models of this type that involve a large Yukawa coupling between weak isotriplet and isodoublet chiral supermultiplets. The particle content can be completed to provide perturbative gauge coupling unification, in several different ways. The impact on precision electroweak observables is shown to be acceptably small, even if the new particles are as light as the current experimental bounds of order 100 GeV. I study the corrections to the lightest Higgs boson mass, and discuss the general features of the collider signatures for the new fermions in these models.

Citations

• Review of Particle Physics
• Discovering Majorana neutrinos produced via aZboson at hadron colliders
• Supersymmetry and an extra vectorlike generation
• Heavy gluino as the lightest supersymmetric particle
• Large tau and tau neutrino electric dipole moments in models with vectorlike multiplets
• Regularization dependence of running couplings in softly broken supersymmetry
• Electroweak two-loop corrections to the effective weak mixing angle
• Discovery potential of R-hadrons with the ATLAS detector
• Possible signals of wino LSP at the Large Hadron Collider
• Test of anomaly mediation at the LHC
• Nearly degenerate gauginos and dark matter at the LHC
• Higgs boson mass, sparticle spectrum, and the little hierarchy problem in an extended MSSM
• Discovering anomaly-mediated supersymmetry at the LHC
• Fourth family neutrinos and the Higgs boson at the LHC

Cited by

• Precision gauge unification from extra Yukawa couplings
• Nonuniversal gaugino masses, the supersymmetric little hierarchy problem, and dark matter
• A supersymmetric one Higgs doublet model