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SUMMARY:First tritium endpoint measurement with Cyclotron Radiation Emissi
 on Spectroscopy (CRES)
DTSTART;VALUE=DATE-TIME:20210901T154500Z
DTEND;VALUE=DATE-TIME:20210901T160000Z
DTSTAMP;VALUE=DATE-TIME:20261012T132325Z
UID:indico-contribution-15723@indico.ific.uv.es
DESCRIPTION:Speakers: Christine Claessens (Center for Experimental Nuclear
  Physics and Astrophysics\, University of Washington\, WA\, USA)\nThe Proj
 ect 8 collaboration is seeking a direct measurement of the absolute neutri
 no mass scale from the distortion of the tritium beta decay spectrum near 
 the endpoint with a sensitivity of $\\sim 40\\\,\\mathrm{meV/c^2}$. To thi
 s end\, the collaboration has successfully established CRES\, a frequency-
 based approach to detect electrons and determine their kinetic energy. Thi
 s talk will present the data and analysis of the first tritium spectrum re
 corded using the CRES technique. The spectrum shows no events beyond the e
 ndpoint\, demonstrating the ultra-low background obtainable with this tech
 nology. This talk will further report on the improved energy resolution an
 d the influence of the main systematic error sources on the shape of the m
 easured spectrum and the tritium endpoint determination.\nThis work is sup
 ported by the US DOE Office of Nuclear Physics\, the US NSF\, the PRISMA+ 
 Cluster of Excellence at the University of Mainz\, and internal investment
 s at all institutions.\n\nhttps://indico.ific.uv.es/event/6178/contributio
 ns/15723/
LOCATION:
URL:https://indico.ific.uv.es/event/6178/contributions/15723/
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