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LHC constraints on the Lee–Wick Higgs sector

2014/03/18 by Christopher D. Carone, Raymundo Ramos, Marc Sher
Mathematics · Physics and Astronomy · #Boson #Geometry #Gluon #Higgs boson #Higgs sector #High-Energy Particle Collisions Research #Inverse #Large Hadron Collider #Luminosity #Mathematics #Nuclear physics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Quark #Scalar (mathematics) #Standard Model (mathematical formulation) #Standard deviation #Statistics #Upper and lower bounds #hep-ph

paper · pdf · doi:10.1016/j.physletb.2014.03.025

published as Physics Letters B 732 (2014), pp. 122-126 · 14 pages LaTeX, 2 figures (v2: reference added)

arxiv created 2014/03/18 · openalex publication_date 2014/03/21 · arxiv updated 2014/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We determine constraints on the Lee–Wick Higgs sector obtained from the full LHC Higgs boson data set. We determine the current lower bound on the heavy neutral Lee–Wick scalar, as well as projected bounds at a 14 TeV LHC with 300 and 3000 inverse femtobarns of integrated luminosity. We point out that the first sign of new physics in this model may be the observation of a deviation from standard model expectations of the lighter neutral Higgs signal strengths corresponding to production via gluon–gluon fusion and decay to either tau or Z pairs. The signal strength of the latter is greater than the standard model expectation, unlike most extensions of the standard model.

Citations