Light Higgs bosons in two-Higgs-doublet models

Jeremy Bernon, John F. Gunion, Yun Jiang, and Sabine Kraml
Phys. Rev. D 91, 075019 – Published 24 April 2015

Abstract

We explore the possibilities in two-Higgs-doublet models of type I and type II for Higgs states with mass below about 60 GeV, i.e. less than half of the 125GeV mass of the observed SM-like Higgs boson. We identify the latter as either the lighter or the heavier CP-even state, h or H, and employ scans of the two-Higgs-doublet model parameter space taking into account all relevant theoretical and experimental constraints, including the most up-to-date Higgs signal strength measurements. We find that, in both type I and type II models, such light Higgs states are phenomenologically viable and can lead to interesting signatures. Part of the relevant parameter space may be testable with the existing 8 TeV LHC data, e.g. by looking for direct production of the light state via gg fusion or bb¯ associated production using its τ+τ and μ+μ decays at low invariant mass.

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  • Received 23 January 2015

DOI:https://doi.org/10.1103/PhysRevD.91.075019

© 2015 American Physical Society

Authors & Affiliations

Jeremy Bernon1,*, John F. Gunion2,†, Yun Jiang2,‡, and Sabine Kraml1,§

  • 1Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, 53 Avenue des Martyrs, F-38026 Grenoble, France
  • 2Department of Physics, University of California, Davis, California 95616, USA

  • *jeremy.bernon@lpsc.in2p3.fr
  • jfgunion@ucdavis.edu
  • yunjiang@ucdavis.edu
  • §sabine.kraml@lpsc.in2p3.fr

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Issue

Vol. 91, Iss. 7 — 1 April 2015

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