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SUMMARY:Insights into 1-loop corrections to neutrino low-scale type-I sees
 aw mechanism
DTSTART;VALUE=DATE-TIME:20261022T220000Z
DTEND;VALUE=DATE-TIME:20261023T000000Z
DTSTAMP;VALUE=DATE-TIME:20261105T023227Z
UID:indico-contribution-79@cern.ch
DESCRIPTION:Speakers: Ms. QAMAR\, Kainat (UNAM)\nThe standard type-I seesa
 w can also be regarded as a low-scale seesaw by using the freedom of the C
 asas-Ibarra parameterization. In this framework\, radiative corrections to
  the neutrino mass matrix can dominate over the tree-level contribution. W
 e show that a naive use of the Casas-Ibarra parametrization in the presenc
 e of 1-loop corrections leads to incorrect predictions for the neutrino os
 cillation parameters. By using a modified Casas-Ibarra parametrization\, i
 n which 1-loop corrections are reabsorbed into the right-handed neutrino m
 ass matrix\, we obtain a light neutrino mass matrix consistent with experi
 mental values. On the other hand\, we show that physical processes related
  to right-handed neutrino propagation\, such as heavy neutral lepton searc
 hes\, do not depend on the 1-loop corrections. Moreover\, we show that Br(
 μ→eγ) provides competitive constraints on the parameter space of heavy
  neutral lepton search experiments for masses above 100 GeV.\n\nhttps://in
 dico.nucleares.unam.mx/event/2675/session/1/contribution/79
LOCATION:Edificio Carolino Salón de Proyecciones
URL:https://indico.nucleares.unam.mx/event/2675/session/1/contribution/79
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