Collider Bounds on Lee-Wick Higgs Bosons

Abstract

We study the constraints on the Lee-Wick Higgs sector arising from direct collider searches. We work in an effective-field theory framework, where all of the Lee-Wick partners are integrated out, with the sole exception of the Lee-Wick Higgs bosons. The resulting theory is a two-Higgs doublet model where the second doublet has wrong-sign kinetic and mass terms. We include the bounds coming from direct Higgs searches at both LEP and Tevatron using the code HiggsBounds, and show the currently excluded parameter space. We also analyze the prospects of LHC Run-I, finding that with a total integrated luminosity of 5 fb ${}^{-1}$ and a center-of-mass energy of 7 TeV, most of the parameter space for the SM-like CP-even Higgs will be probed.

26 pages, 5 figures, matches version published by PRD

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Cited by in corpus (10)

• Theory and phenomenology of two-Higgs-doublet models
• Lee-Wick radiation induced bouncing universe models
• LHC Constraints on the Lee-Wick Higgs Sector
• Model-independent Higgs coupling measurements at the LHC using the H \to ZZ \to 4l lineshape
• Collider Signatures of the N=3 Lee-Wick Standard Model
• The Lee-Wick Standard Model at Finite Temperature
• Precision Electroweak Constraints on the N=3 Lee-Wick Standard Model
• A toy model based analysis on the effect of the Lee-Wick partners in the evolution of the early universe
• Acausality from a Dark Sector
• The Lee-Wick Extension of the Two-Higgs Doublet Model