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An alternative to the standard model

  • Korea Institute for Advanced Study

Research output: Contribution to conferenceConference paperpeer-review

Abstract

We present an extension of the standard model to dark sector with an unbroken local dark U(1)X symmetry. Including various singlet portal interactions provided by the standard model Higgs, right-handed neutrinos and kinetic mixing, we show that the model can address most of phenomenological issues (inflation, neutrino mass and mixing, baryon number asymmetry, dark matter, direct/indirect dark matter searches, some scale scale puzzles of the standard collisionless cold dark matter, vacuum stability of the standard model Higgs potential, dark radiation) and be regarded as an alternative to the standard model. The Higgs signal strength is equal to one as in the standard model for unbroken U(1)X case with a scalar dark matter, but it could be less than one independent of decay channels if the dark matter is a dark sector fermion or if U(1)X is spontaneously broken, because of a mixing with a new neutral scalar boson in the models.

Original languageEnglish
Title of host publicationWorkshop on Dark Matter, Neutrino Physics and Astrophysics, CETUP* 2013 - 7th International Conference on Interconnections between Particle Physics and Cosmology, PPC* 2013
PublisherAmerican Institute of Physics Inc.
Pages73-82
Number of pages10
ISBN (Print)9780735412385
DOIs
StatePublished - 2014
EventWorkshop on Dark Matter, Neutrino Physics and Astrophysics, CETUP* 2013 and 7th International Conference on Interconnections Between Particle Physics and Cosmology, PPC* 2013 - Lead/Deadwood, SD, United States
Duration: 2013.06.242013.07.26

Publication series

NameAIP Conference Proceedings
Volume1604
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceWorkshop on Dark Matter, Neutrino Physics and Astrophysics, CETUP* 2013 and 7th International Conference on Interconnections Between Particle Physics and Cosmology, PPC* 2013
Country/TerritoryUnited States
CityLead/Deadwood, SD
Period13.06.2413.07.26

Keywords

  • BSM model
  • collider phenomenology
  • dark radiation
  • dark U(1) symmetry

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