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SUMMARY:Leptogenesis and baryon asymmetry in the early Universe for the ca
 se arbitrary hypermagnetic helicity
DTSTART;VALUE=DATE-TIME:20161011T110000Z
DTEND;VALUE=DATE-TIME:20161011T111500Z
DTSTAMP;VALUE=DATE-TIME:20260713T101310Z
UID:indico-contribution-726@cern.ch
DESCRIPTION:Speakers: Alexander Smirnov (IZMIRAN)\nWe study hypermagnetic 
 helicity and lepton asymmetry evolution in plasma of the early Universe be
 fore the electroweak phase transition (EWPT) accounting for chirality flip
  processes via inverse Higgs decays and sphaleron transitions which violat
 e the left lepton number and wash out the baryon asymmetry of the Universe
  (BAU). In the scenario where the right electron asymmetry supports the BA
 U alone through the conservation law B/3−L_{eR}=const at temperatures T>
 T_{RL}~ 10TeV the following universe cooling leads to the production of a 
 non-zero left lepton (electrons and neutrinos) asymmetry. This is due to t
 he Higgs decays becoming more faster when entering the equilibrium at T=TR
 L with the universe expansion\, Γ{RL}~T>H~T^2\, resulting in the parallel
  evolution of both the right and the left electron asymmetries at T\n\nhtt
 ps://indico.particle.mephi.ru/event/4/contributions/726/
LOCATION:Milan Hotel Rossini
URL:https://indico.particle.mephi.ru/event/4/contributions/726/
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