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Title: Light dark matter, naturalness, and the radiative origin of the electroweak scale

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3];  [3];  [2]
  1. Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, Chicago, IL (United States)

We study classically scale invariant models in which the Standard Model Higgs mass term is replaced in the Lagrangian by a Higgs portal coupling to a complex scalar field of a dark sector. We focus on models that are weakly coupled with the quartic scalar couplings nearly vanishing at the Planck scale. The dark sector contains fermions and scalars charged under dark SU(2) × U(1) gauge interactions. Radiative breaking of the dark gauge group triggers electroweak symmetry breaking through the Higgs portal coupling. Requiring both a Higgs boson mass of 125.5 GeV and stability of the Higgs potential up to the Planck scale implies that the radiative breaking of the dark gauge group occurs at the TeV scale. We present a particular model which features a long-range abelian dark force. The dominant dark matter component is neutral dark fermions, with the correct thermal relic abundance, and in reach of future direct detection experiments. The model also has lighter stable dark fermions charged under the dark force, with observable effects on galactic-scale structure. Collider signatures include a dark sector scalar boson with mass ≲ 250 GeV that decays through mixing with the Higgs boson, and can be detected at the LHC. As a result, the Higgs boson, as well as the new scalar, may have significant invisible decays into dark sector particles.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1226283
Report Number(s):
FERMILAB-PUB-14-272-T; arXiv eprint number arXiv:1408.3429; TRN: US1500543
Journal Information:
Journal of High Energy Physics (Online), Vol. 2015, Issue 1; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 57 works
Citation information provided by
Web of Science

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Cited By (25)

Is the Higgs boson composed of neutrinos? journal November 2015
Is the Higgs Boson Composed of Neutrinos? text January 2015
Systematic analysis of radiative symmetry breaking in models with extended scalar sector journal August 2018
Electroweak vacuum stability in classically conformal $$B-L$$ B - L extension of the standard model journal February 2017
Conformal vector dark matter and strongly first-order electroweak phase transition journal March 2019
Dark matter and neutrino masses from a scale-invariant multi-Higgs portal journal October 2015
Gravitational waves from conformal symmetry breaking journal February 2019
Search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets text January 2016
Dark matter and neutrino masses from a scale-invariant multi-Higgs portal text January 2015
Conformal vector dark matter and strongly first-order electroweak phase transition text January 2019
Nambu-Goldstone dark matter in a scale invariant bright hidden sector journal June 2015
The evolving Planck mass in classically scale-invariant theories journal April 2017
Asymptotic safety in the conformal hidden sector? journal July 2018
Nambu-Goldstone Dark Matter in a Scale Invariant Bright Hidden Sector text January 2015
Search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets journal December 2016
Inflationary Perturbations in No-Scale Theories text January 2017
Erratum to: search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets text January 2017
Inflationary perturbations in no-scale theories journal April 2017
Evolving Planck Mass in Classically Scale-Invariant Theories text January 2016
Search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets text January 2016
Naturalness and Dimensional Transmutation in Classically Scale-Invariant Gravity text January 2014
The Higgs Mass and the Scale of New Physics text January 2015
A Radiative Model for the Weak Scale and Neutrino Mass via Dark Matter text January 2015
A radiative model for the weak scale and neutrino mass via dark matter journal February 2016
Systematic analysis of radiative symmetry breaking in models with extended scalar sector text January 2018

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