Electroweak Precision Constraints on the Littlest Higgs Model with T Parity

Abstract

We compute the leading corrections to the properties of W and Z bosons induced at the one-loop level in the SU(5)/SO(5) Littlest Higgs model with T parity, and perform a global fit to precision electroweak data to determine the constraints on the model parameters. We find that a large part of the model parameter space is consistent with data. Values of the symmetry breaking scale as low as 500 GeV are allowed, indicating that no significant fine tuning in the Higgs potential is required. We identify a region within the allowed parameter space in which the lightest T-odd particle, the partner of the hypercharge gauge boson, has the correct relic abundance to play the role of dark matter. In addition, we find that a consistent fit to data can be obtained for large values of the Higgs mass, up to 800 GeV, due to the possibility of a partial cancellation between the contributions to the T parameter from Higgs loops and new physics.

23 pages, 9 figures. Minor corrections

References in corpus (30)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The Littlest Higgs
• Little Higgs Review
• TeV Symmetry and the Little Hierarchy Problem
• Phenomenology of the Little Higgs Model
• Little Hierarchy, Little Higgses, and a Little Symmetry
• Phenomenology of the Littlest Higgs with T-Parity
• Top Quark Seesaw Theory of Electroweak Symmetry Breaking
• Big Corrections from a Little Higgs
• T Parity and the Littlest Higgs
• Electroweak Symmetry Breaking via Top Condensation Seesaw
• Top Quarks and Electroweak Symmetry Breaking in Little Higgs Models
• Variations of Little Higgs Models and their Electroweak Constraints
• The Little Higgs from a Simple Group
• Constraining the Littlest Higgs
• Model-Independent Global Constraints on New Physics
• One-loop Radiative Corrections to the rho Parameter in the Littlest Higgs Model
• The Simplest Little Higgs
• Little Higgs and Custodial SU(2)
• Collider Tests of the Little Higgs Model
• Little-Higgs corrections to precision data after LEP2
• The Intermediate Higgs
• The Z ->anti-b b decay asymmetry: lose-lose for the Standard Model
• R_b and New Physics: A Comprehensive Analysis
• Implications for New Physics from Fine-Tuning Arguments: II. Little Higgs Models
• The Phenomenology of a Top Quark Seesaw Model
• Supersymmetry and precision data after LEP2
• Limits on a Composite Higgs Boson
• Top Quark Properties in Little Higgs Models

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