Invisible Axion-Like Dark Matter from Electroweak Bosonic Seesaw

نویسندگان

  • Hiroyuki Ishida
  • Shinya Matsuzaki
  • Yuya Yamaguchi
چکیده

We explore a model based on the classically-scale invariant standard model (SM) with a strongly coupled vector-like dynamics, which is called hypercolor (HC). The scale symmetry is dynamically broken by the vector-like 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 the 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 diphoton and can behave as an invisible axion-like dark matter. The mass of the s-dark matter is constrained by currently available cosmological and astrophysical limits to be 10eV < ∼ ms < ∼ 1 eV. We find that the 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.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Axion and hidden photon dark matter detection with multilayer optical haloscopes

A well-motivated class of dark matter candidates, including axion-like particles and dark photons, takes the form of coherent oscillations of a light bosonic field. If the dark matter couples to Standard Model states, it may be possible to detect it via absorptions in a laboratory target. Current experiments of this kind include cavity-based resonators that convert bosonic dark matter to electr...

متن کامل

Unifying Inflation with the Axion, Dark Matter, Baryogenesis, and the Seesaw Mechanism.

A minimal extension of the standard model (SM) with a single new mass scale and providing a complete and consistent picture of particle physics and cosmology up to the Planck scale is presented. We add to the SM three right-handed SM-singlet neutrinos, a new vectorlike color triplet fermion, and a complex SM-singlet scalar σ that stabilizes the Higgs potential and whose vacuum expectation value...

متن کامل

LPT–Orsay–16–12, UMN–TH–3515/16, FTPI–MINN–16/05 Vacuum Stability and Radiative Electroweak Symmetry Breaking in an SO(10) Dark Matter Model

Vacuum stability in the Standard Model is problematic as the Higgs quartic self-coupling runs negative at a renormalization scale of about 10 GeV. We consider a non-supersymmetric SO(10) grand unification model for which gauge coupling unification is made possible through an intermediate scale gauge group, Gint = SU(3)C ⊗SU(2)L⊗SU(2)R⊗U(1)B−L. Gint is broken by the vacuum expectation value of a...

متن کامل

Supersymmetry with Radiatively-Driven Naturalness: Implications for WIMP and Axion Searches

By insisting on naturalness in both the electroweak and quantum chromodynamics (QCD) sectors of the minimal supersymmetric standard model (MSSM), the portrait for dark matter production is seriously modified from the usual weakly interacting massive particle (WIMP) miracle picture. In supersymmetry (SUSY) models with radiatively-driven naturalness (radiative natural SUSY or radiative natural SU...

متن کامل

Dark Matter Axions

The hypothesis of an ‘invisible’ axion was made by Misha Shifman and others, approximately thirty years ago. It has turned out to be an unusually fruitful idea, crossing boundaries between particle physics, astrophysics and cosmology. An axion with mass of order 10 eV (with large uncertainties) is one of the leading candidates for the dark matter of the universe. It was found recently that dark...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2016