Invisible axionlike dark matter from the electroweak bosonic seesaw mechanism

2016/04/30 by Hiroyuki Ishida, Shinya Matsuzaki, Yuya Yamaguchi · 1 citation
Physics and Astronomy · #Boson #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Electroweak interaction #Electroweak scale #Fermion #Higgs boson #Neutrino #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Physics #Seesaw mechanism #Seesaw molecular geometry #Sterile neutrino #Symmetry breaking #astro-ph.HE #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.94.095011

published as Phys. Rev. D 94, 095011 (2016) · 23 pages, 2 figures, v2: correspond to the published version accepted in PRD

openalex created_date 2016/06/24 · arxiv created 2016/11/07 · openalex publication_date 2016/11/09 · arxiv updated 2016/11/15 · openalex updated_date 2026/08/05

Abstract

We explore a model based on the classically scale-invariant standard model (SM) with a strongly coupled vectorlike dynamics, which is called hypercolor (HC). The scale symmetry is dynamically broken by the vectorlike condensation at the TeV scale, so that the SM Higgs acquires the negative mass squared by the bosonic seesaw mechanism to realize the electroweak symmetry breaking. An elementary pseudoscalar S is introduced to give masses for the composite Nambu-Goldstone bosons (HC pions): The HC pion can be a good target to explore through a diphoton channel at the LHC. As a consequence of the bosonic seesaw, the fluctuating mode of S, which we call s, develops tiny couplings to the SM particles and is predicted to be very light. The s predominantly decays to a diphoton and can behave as invisible axionlike dark matter. The mass of the s dark matter is constrained by currently available cosmological and astrophysical limits to be 10^\ensuremath-4 eV\ensuremath\lesssimm_s\ensuremath\lesssim1 eV. We find that a sufficient amount of relic abundance for the s dark matter can be accumulated via the coherent oscillation. The detection potential in microwave cavity experiments is also addressed.

Citations

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Global aspects of current algebra
• Radiative symmetry breaking at the Fermi scale and flat potential at the Planck scale
• Observation of a new boson with mass near 125 GeV in pp collisions at √(s)=7 and 8 TeV
• Chiral perturbation theory: Expansions in the mass of the strange quark
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• Search for new resonances in Wγ and Zγ final states in pp collisions at √s = 8 TeV with the ATLAS detector
• Big-Bang Nucleosynthesis

Cited by

• Right-handed neutrino dark matter in the classically conformal U(1)′ extended standard model