Superconformal Technicolor: Models and Phenomenology

Abstract

In supersymmetric theories with a strong conformal sector, soft supersymmetry breaking naturally gives rise to confinement and chiral symmetry breaking in the strong sector at the TeV scale. We construct and analyze models where such a sector dynamically breaks electroweak symmetry, and take the first steps in studying their phenomenology. We consider two scenarios, one where the strong dynamics induces vacuum expectation values for elementary Higgs fields, and another where the strong dynamics is solely responsible for electroweak symmetry breaking. In both cases there is no fine tuning required to explain the absence of a Higgs boson below the LEP bound, solving the supersymmetry naturalness problem. Quark and lepton masses arise from conventional Yukawa couplings to elementary Higgs bosons, so there are no additional flavor-changing effects associated with the strong dynamics. A good precision electroweak fit can be obtained because the strong sector is an SU(2) gauge theory with one weak doublet, and has adjustable parameters that control the violation of custodial symmetry. In addition to the the standard supersymmetry signals, these models predict production of multiple heavy standard model particles (t, W, Z, and b) from decays of resonances in the strong sector. The strong sector has no approximate parity symmetry, so WW scattering is unitarized by states that can decay to WWW as well as WW.

34 pages, 3 figures; v2: minor changes, references added

References in corpus (11)

• Nonstandard Higgs Boson Decays
• Constraining the Two-Higgs-Doublet-Model parameter space
• Low-Scale Technicolor at the Tevatron and LHC
• The S-parameter in Holographic Technicolor Models
• Parity Doubling and the S Parameter Below the Conformal Window
• Strong Conformal Dynamics at the LHC and on the Lattice
• Pseudo-Dirac Bino Dark Matter
• Superconformal Technicolor
• Mixed Bino-Wino-Higgsino Dark Matter in Gauge Messenger Models
• Flavor in Minimal Conformal Technicolor
• N=4 Extended MSSM

Cited by in corpus (24)

• Composite Higgses
• Fundamental Composite 2HDM: SU(N) with 4 flavours
• Electroweak Symmetry Breaking and the Higgs Boson: Confronting Theories at Colliders
• Uncovering Mass Generation Through Higgs Flavor Violation
• The Higgs Trilinear Coupling and the Scale of New Physics
• A UV complete partially composite-pNGB Higgs
• Dark Mesons at the LHC
• Low Scale Supersymmetry Breaking and its LHC Signatures
• Induced Electroweak Symmetry Breaking and Supersymmetric Naturalness
• Early Higgs Hints for Non-Minimal Supersymmetry
• Electroweak Symmetry Breaking in the DSSM
• Natural Supersymmetry without Light Higgsinos
• Slim SUSY
• The Higgs as a Probe of Supersymmetric Extra Sectors
• Effective Theories of Dark Mesons with Custodial Symmetry
• Phases of N=1 supersymmetric chiral gauge theories
• Stealth QCD-like Strong Interactions and the t-tbar Asymmetry
• Phenomenology of Partially Composite Standard Model
• S and T for SCFTs
• Probing top-antitop resonances with $t\bar{t}$ scattering at LHC14
• Collider signatures of low scale supersymmetry breaking: A Snowmass 2013 White Paper
• OPE Methods for the Holomorphic Higgs Portal
• Non-Perturbative Constraints on Light Sparticles from Properties of the RG Flow
• Composite Higgsino