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SUMMARY:Cosmic neutrino background and mass measurement:  PTOLEMY project
DTSTART:20260317T133000Z
DTEND:20260317T143000Z
DTSTAMP:20260507T201700Z
UID:indico-event-51334@agenda.infn.it
DESCRIPTION:Speakers: Marcello Messina (Istituto Nazionale di Fisica Nucle
 are)\n\nAbstract: \nThe Universe has expanded significantly since the ear
 ly thermal epoch known as the neutrino decoupling\, one second after the 
 start. We have evidence of this expansion in many forms: the Hubble Expans
 ion\, the dim afterglow of the hot plasma epoch (Cosmic Microwave Backgro
 und) and the abundances of light elements (Big Bang Nucleosynthesis). The
  epoch of neutrino decoupling produced a fourth pillar of confirmation –
  the Cosmic Neutrino Background (CNB).  In our current understanding\, th
 e CNB was created in the first second after elementary particles spontaneo
 usly filled the void of the early Universe. Recent experimental advances 
 open up new opportunities to directly detect the CNB  through the process
  of neutrino capture on tritium\, an achievement which would profoundly ex
 tend the sensitivity of precision cosmology data. PTOLEMY\, an experiment
  at the Gran Sasso National Laboratory in Italy\, is a novel method of 2D
  target surfaces\, fabricated from graphene\, that forms a basis for a lar
 ge-scale relic neutrino detector. Recent PTOLEMY publications describe th
 e underlying technique for achieving CNB sensitivity and redefines  the f
 uture direction of neutrino mass measurements. The discussion of PTOLEMY f
 ocusses on experimental challenges\, recent developments and the path for
 ward to discovery sensitivity.\nCoordinate ZOOM\nhttps://infn-it.zoom.us/j
 /84261721878?pwd=MDZNaGdBUlcvUUJXa2phSHZVZk5sdz09ID riunione: 842 6172 187
 8Passcode: 611379\n\nhttps://agenda.infn.it/event/51334/
LOCATION:Edificio C - Sala riunioni 250 (INFN - Pisa)
URL:https://agenda.infn.it/event/51334/
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