Four Generations, Higgs Physics, and the MSSM

Abstract

We consider the effects of a fourth generation of chiral fermions within the MSSM. Such a model offers the possibility of having the lightest neutral Higgs boson significantly heavier than in the three generation MSSM. The model is highly constrained by precision electroweak data, along with Higgs searches at the Tevatron. In addition, the requirements of perturbative unitarity and direct searches for heavy quarks imply that the four generation MSSM is only consistent for tan beta ~ 1 and highly tuned 4th generation fermion masses.

References added and minor typographical errors corrected

References in corpus (29)

• The Anatomy of Electro-Weak Symmetry Breaking. II: The Higgs bosons in the Minimal Supersymmetric Model
• Four Generations and Higgs Physics
• The Renormalization-Group Improved Higgs Sector of the Minimal Supersymmetric Model
• Extra Families, Higgs Spectrum and Oblique Corrections
• Electroweak Precision Observables in the Minimal Supersymmetric Standard Model
• The one-loop renormalization of the MSSM Higgs sector and its application to the neutral scalar Higgs masses
• Radiative Corrections to the $Zb\bar{b}$ Vertex and Constraints on Extended Higgs Sectors
• Revisiting the Global Electroweak Fit of the Standard Model and Beyond with Gfitter
• Precise Prediction for the Mass of the Lightest Higgs Boson in the MSSM
• Novel Approach to Confront Electroweak Data and Theory
• How much space is left for a new family?
• Precision Constraints on Extra Fermion Generations
• SM with four generations: Selected implications for rare B and K decays
• t' at the LHC: the physics of discovery
• Search for Fermion-Pair Decays $Q\Qbar \to (\t\Wmp)(\tbar\Wpm)$ in Same-Charge Dilepton Events
• Four Generations, the Electroweak Phase Transition, and Supersymmetry
• Supersymmetry versus precision experiments revisited
• Experimental constraints on fourth generation quark masses
• Constraints on Mass Spectrum of Fourth Generation Fermions and Higgs Bosons
• Combined Tevatron upper limit on gg->H->W+W- and constraints on the Higgs boson mass in fourth-generation fermion models
• The NNLO gluon fusion Higgs production cross-section with many heavy quarks
• A Minimal Four-Family Supergravity Model
• Direct Mass Limits for Chiral Fourth-Generation Quarks in All Mixing Scenarios
• The strongly coupled fourth family and a first-order electroweak phase transition (I) quark sector
• Perturbativity and a Fourth Generation in the MSSM
• Four-Generation Low Energy Supersymmetry with a Light Top Quark
• Four Generations: SUSY and SUSY Breaking
• Higgs Masses in the Four Generation MSSM
• The Fourth Generation t-prime in Extensions of the Standard Model

Cited by in corpus (21)

• A Higgs Conundrum with Vector Fermions
• Two Higgs doublets with 4th generation fermions - models for TeV-scale compositeness
• Low Energy Supersymmetry with Baryon and Lepton Number Gauged
• Higgs data confronts Sequential Fourth Generation Fermions in the Higgs Triplet Model
• An A_5 Model of Four Lepton Generations
• Fourth Generation Parity
• The 125 GeV Higgs in the context of four generations with 2 Higgs doublets
• Neutrino dark matter candidate in fourth generation scenarios
• Large mass splittings for fourth generation fermions allowed by LHC Higgs exclusion
• The Supersymmetric Leptophilic Higgs Model
• Yukawa Corrections to Higgs Production in Top Partner Models
• SUSY signals with small and large trilinear couplings at the LHC 7 TeV runs and neutralino dark matter
• The Need for New Search Strategies for Fourth Generation Quarks at the LHC
• Neutrino Masses and a Fourth Generation of Fermions
• Confronting the fourth generation two Higgs doublet model with the phenomenology of heavy Higgs bosons
• Higgs Properties in the Fourth Generation MSSM: Boosted Signals Over the 3G Plan
• Higgs Phenomenology in Warped Extra-Dimensions with a 4th Generation
• Unitarity constraints for Yukawa couplings in the two Higgs doublet model type III
• Realistic Four-Generation MSSM in Type II String Theory
• Natural Four-Generation Mass Textures in MSSM Brane Worlds
• Improving sensitivity of vectorlike top partner searches with jet substructure