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SUMMARY:Baryon and lepton asymmetry of the Universe in the left-right asym
 metric model of weak interaction
DTSTART;VALUE=DATE-TIME:20261029T151000Z
DTEND;VALUE=DATE-TIME:20261029T152500Z
DTSTAMP;VALUE=DATE-TIME:20261021T053728Z
UID:indico-contribution-6247@cern.ch
DESCRIPTION:Speakers: Anatolii Serebrov (NRC "Kurchatov Institute" - PNPI)
 \nThe formation of the Universe's baryon and lepton asymmetries is examine
 d within the framework of a left-right asymmetric model of weak interactio
 n. The presence of a right-handed vector boson admixture—with mixing ang
 les of opposite signs for $W^-$ and $W^+$—results in differing lifetimes
  for neutrons and antineutrons\, which decay via $W^-$ and $W^+$\, respect
 ively. This difference gives rise to baryon asymmetry during the hadroniza
 tion of quark-gluon plasma at temperatures below 150 MeV. The formation of
  lepton asymmetry in the left-right model is linked to the presence of ste
 rile (right-handed) neutrinos\; these do not thermalize and instead escape
  the cosmic plasma\, carrying away a lepton asymmetry that is opposite in 
 sign to the baryon asymmetry. Overall\, a baryon-lepton asymmetry emerges 
 while the difference between baryon and lepton numbers ($B-L$) is conserve
 d. The potential for enhancing the experimental precision of neutron decay
  asymmetry measurements is noted as a means to increase the confidence lev
 el in substantiating the left-right asymmetric model of weak interaction.\
 n\nhttps://indico.particle.mephi.ru/event/626/contributions/6247/
LOCATION:Sevastopol Hotel
URL:https://indico.particle.mephi.ru/event/626/contributions/6247/
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