Effects of the axion through the higgs portal on primordial gravitational waves during the electroweak breaking

HIGHLIGHTS

• who: V. K. Oikonomou from the DepartmentAristotle University of Thessaloniki, Thessaloniki, Greece have published the article: Effects of the axion through the Higgs portal on primordial gravitational waves during the electroweak breaking, in the Journal: (JOURNAL) of 30/03/2023
• what: The authors investigate the effects of short axion kination eras on the energy spectrum of the primordial gravitational waves corresponding to modes that reenter the Hubble horizon at the postelectroweak symmetry breaking epoch well within the radiation domination era. As the authors show the energy spectrum of the gravitational waves mainly depends on how . . .
  

   

  

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