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SUMMARY:SMASH model and atmospheric neutrino mass splitting
DTSTART;VALUE=DATE-TIME:20181024T143000Z
DTEND;VALUE=DATE-TIME:20181024T144500Z
DTSTAMP;VALUE=DATE-TIME:20260612T054933Z
UID:indico-contribution-1269@cern.ch
DESCRIPTION:Speakers: Chitta Ranjan Das (Bogoliubov Laboratory of Theoreti
 cal Physics)\nFive fundamental problems - neutrino oscillations\, baryogen
 esis\, dark matter\, inflation\, strong CP problem - are solved at one str
 oke in a model\, dubbed as "SM-A-S-H" (Standard Model-Axion-Seesaw-Higgs p
 ortal inflation) by Andreas Ringwald et. al. The Standard Model (SM) parti
 cle content is extended by three right-handed SM-singlet neutrinos $N_i$\,
  a vector-like color triplet quark $Q$\, a complex SM-singlet scalar field
  $\\sigma$ that stabilises the Higgs potential\, all of them being charged
  under a global lepton number (hyper-charge) and Peccei-Quinn (PQ) $U(1)$ 
 symmetry\, the vacuum expectation value $v_\\sigma \\sim 10^{11}$ GeV brea
 ks the lepton number and the Peccei-Quinn symmetry simultaneously. We foun
 d that numerically SMASH model not only solves five fundamental problems b
 ut also the sixth problem "Vacuum Metastability" through the extended scal
 ar sector and can predict approximately correct atmospheric neutrino mass 
 splitting around 0.05 eV.\n\nhttps://indico.particle.mephi.ru/event/22/con
 tributions/1269/
LOCATION:Hotel Intourist Kolomenskoye 4* Alekseevskiy hall
URL:https://indico.particle.mephi.ru/event/22/contributions/1269/
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