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Properties and searches of the exotic neutral Higgs bosons in the Georgi-Machacek model

  • Cheng-Wei Chiang
  • Koji Tsumura
Open Access
Regular Article - Theoretical Physics

Abstract

The Georgi-Machacek model predicts the existence of four neutral Higgs bosons, one of which can be identified as the 125-GeV Higgs boson. The latest Higgs data favor the parameter space of small mixing angle α between the two custodial singlets of the model. The other two neutral Higgs bosons belong respectively to the custodial triplet and quintet. We study the general decay and production properties of these particles in the small-α scenario. Constraints on the SU(2) L triplet vacuum expectation value are obtained as a function of the exotic Higgs boson masses using latest ATLAS data of various search channels for additional neutral Higgs bosons.

Keywords

Higgs Physics Beyond Standard Model 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2015

Authors and Affiliations

  1. 1.Center for Mathematics and Theoretical Physics and Department of PhysicsNational Central UniversityTaoyuanTaiwan
  2. 2.Institute of PhysicsAcademia SinicaTaipeiTaiwan
  3. 3.Physics DivisionNational Center for Theoretical SciencesHsinchuTaiwan
  4. 4.Kobayashi-Maskawa Institute for the Origin of Particles and the UniverseNagoya UniversityNagoyaJapan
  5. 5.Department of PhysicsKyoto UniversityKyotoJapan

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