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SUMMARY:TeV-scale origin of light dark matter and neutrino mass
DTSTART:20261117T070000Z
DTEND:20261117T083000Z
DTSTAMP:20261107T225500Z
UID:indico-event-444@indico.kias.re.kr
DESCRIPTION:Speakers: Shu-yo Ho (Academia Sinica)\n\nTitle: TeV-scale ori
 gin of light dark matter and neutrino mass\nSpeaker: Shu-yo Ho\nAbstract:
  We demonstrate that TeV-scale heavy neutral leptons (HNLs) responsible f
 or inverse-seesaw neutrino mass generation can simultaneously fix the cosm
 ological abundance and decay properties of dark matter (DM). The spontaneo
 us breaking of lepton number gives rise to a pseudo-Nambu-Goldstone boson 
 that serves as a light DM candidate\, whose mass originates from a small e
 xplicit symmetry-breaking term. The same HNLs that generate neutrino masse
 s produce the DM via freeze-in and mediate its decay into neutrinos\, lead
 ing to a tight correlation among neutrino masses\, DM relic abundance\, an
 d DM lifetime. For collider-accessible TeV-scale HNLs\, the observed relic
  density and lifetime constraints point to sub-GeV DM\, yielding observabl
 e neutrino signals at JUNO and next-generation detectors such as Hyper-Kam
 iokande and DUNE. This framework establishes a predictive and experimental
 ly testable link between neutrino mass generation and DM.\n\n\nhttps://ind
 ico.kias.re.kr/event/444/
LOCATION:Room 1423 (KIAS)
URL:https://indico.kias.re.kr/event/444/
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