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SUMMARY:A simple connection between neutrino oscillation and leptogenesis
DTSTART;VALUE=DATE-TIME:20020226T150000Z
DTEND;VALUE=DATE-TIME:20020226T160000Z
DTSTAMP;VALUE=DATE-TIME:20261109T014658Z
UID:indico-event-1254@indico.ific.uv.es
DESCRIPTION:The usual see-saw formula is modified by the presence of two H
 iggs triplets in left-right symmetric theories. The contribution from the 
 left-handed Higgs triplet to the see-saw formula can dominate over the con
 ventional one when the neutrino Dirac mass matrix is identified with the c
 harged lepton or down quark mass matrix. In this case an analytic calculat
 ion of the lepton asymmetry\, generated by the decay of the lightest right
 -handed Majorana neutrino\, is possible. For typical parameters\, the out-
 of-equilibrium condition for the decay is automatically fulfilled. The bar
 yon asymmetry has the correct order of magnitude\, as long as the lightest
  mass eigenstate is not much lighter then 10^{-6} to 10^{-8} eV\, dependin
 g on the solution of the solar neutrino problem. A sizable signal in neutr
 inoless double beta decay can be expected\, as long as the smallest mass e
 igenstate is not much lighter than 10^{-3} eV and the Dirac mass matrix is
  identified with the charged lepton mass matrix.\n\nhttps://indico.ific.uv
 .es/event/1254/
LOCATION:Edf. Institutos de Investigación Sala Seminarios IFIC
URL:https://indico.ific.uv.es/event/1254/
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