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TZOFFSETFROM:+0100
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DTSTART:20250330T010000
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DTSTART:20251026T010000
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DTSTART;TZID=Europe/Rome:20251118T113000
DTEND;TZID=Europe/Rome:20251118T130000
DTSTAMP:20260509T002711
CREATED:20250917T084207Z
LAST-MODIFIED:20250917T084207Z
UID:39583-1763465400-1763470800@w3.lnf.infn.it
SUMMARY:Beyond Neutrino Mass: Observable $n$–$\overline{n}$ Oscillations in UV Complete Seesaw Models
DESCRIPTION:Speaker: Shaikh Saad (Jozef Stefan Institute\, Ljubljana) \nNext-generation experiments like DUNE and NNBAR will greatly enhance sensitivity to neutron–antineutron oscillations\, a direct probe of baryon number violation ($\Delta B = 2$) beyond the Standard Model. This talk discusses such oscillations in unified frameworks that also explain fermion and neutrino masses via seesaw mechanisms. Two scenarios will be discussed: (1) Type II seesaw with two color-sextet scalars\, realizable in $SO(10)$/Pati–Salam models\, and (2) Type III seesaw with a sextet scalar and color-octet fermion\, naturally embedded in $SU(5)$. In both cases\, the same dynamics linking fermion masses induces baryon violation\, tying oscillations to flavor structure. Upcoming searches can probe new colored states up to $10^{11}$ GeV—far beyond collider reach—making $n$–$\overline{n}$ oscillations a rare low-energy window into grand unification and ultra-heavy new physics.
URL:/event/beyond-neutrino-mass-observable-n-overlinen-oscillations-in-uv-complete-seesaw-models/
LOCATION:Aula Seminari\, Via Enrico Fermi\, 40\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari teorici
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