Sommerfeld Enhancement of BLSSM-IS Dark Matter

  • A. Elsheshtawy faculty os science ain shams university
  • Waled Emam Department of Mathematics, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
Keywords: BLSSM-IS dark matter, Sommerfeld Enhancement of yukawa potential, Lightest Right-handed Sneutrino Dark Matter, The Relic Density With Sommerfeld Effect.


The lightest right-handed (RH) sneutrino in the BLSSM model with inverse seesaw is an intriguing candidate for dark matter. However, its relic abundance typically exceeds the observational limits. We show that when the RH sneutrino mass exceeds 600 GeV and there is a strong coupling with the light Higgs boson, the Sommerfeld Effect (SE) is significantly enhanced. We emphasize that this effect modifies the RH-sneutrino relic abundance and makes it a viable dark matter up to a mass of order 2.5 TeV.
Special Issue on Neutrinos and Dark Matter-2022