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Composite Higgs and Dark Matter model in SU(6)/SO(6)

Authors
  • Cacciapaglia, Giacomo1, 2
  • Cai, Haiying3
  • Deandrea, Aldo1, 2
  • Kushwaha, Ashwani4
  • 1 Institut de Physique des Deux Infinis de Lyon (IP2I), CNRS/IN2P3 UMR5822, 4 rue Enrico Fermi, Villeurbanne Cedex, 69622, France , Villeurbanne Cedex (France)
  • 2 Université Claude Bernard Lyon 1, Université de Lyon, 92 rue Pasteur, Lyon Cedex 07, 69361, France , Lyon Cedex 07 (France)
  • 3 Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk, 790-784, Republic of Korea , Pohang (South Korea)
  • 4 Indian Institute of Science, Centre for High Energy Physics, Bangalore, 560012, India , Bangalore (India)
Type
Published Article
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Publication Date
Oct 04, 2019
Volume
2019
Issue
10
Identifiers
DOI: 10.1007/JHEP10(2019)035
Source
Springer Nature
Keywords
License
Yellow

Abstract

We consider a realisation of composite Higgs models in the context of SU(6)/SO(6) symmetry, which features a custodial bi-triplet, two Higgs doublets and dark matter candidates. This model can arise from an underlying gauge-fermion theory. The general vacuum structure is explored using the top partial compositeness to generate a special vacuum characterised by a single angle aligned with the first Higgs doublet. We present the CP and Dark Matter ℤ2 parity in two different pNGB bases and analyse the spectra in the absence of tadpoles and tachyons. For the phenomenology, we discuss the constraints from electroweak precision tests and from a potentially light CP-odd singlet (other than the Dark Matter) in the model.

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