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SUMMARY:First results of the LEGEND-200 experiment in the search for neutr
 inoless double beta decay
DTSTART:20250401T093000Z
DTEND:20250401T110000Z
DTSTAMP:20260419T114600Z
UID:indico-event-5035@agenda.ciemat.es
DESCRIPTION:Speakers: Carmen Romo Luque (Los Alamos National Laboratory)\n
 \nThe LEGEND experiment is trying to find the extremely rare neutrinoless 
 double beta decay of 76Ge using isotopically-enriched high-purity germaniu
 m (HPGe) detectors. The detection of this process would imply that the neu
 trino is a Majorana particle and the total lepton number would not be cons
 erved\, which could be related to the cosmological asymmetry between matte
 r and antimatter through leptogenesis.The first phase\, LEGEND-200\, has b
 een collecting physics data at LNGS in Italy for more than a year with 140
  kg of HPGe detectors. The installation of more detectors is planned for t
 he near future. The Collaboration has been focused on the analysis and und
 erstanding of the first set of LEGEND-200 data\, the evaluation of the sen
 sitivity and the study of the residual backgrounds.In this seminar\, I wil
 l discuss the neutrinoless double beta decay process and the key character
 istics an experiment must have to search for it. The focus will be on the 
 LEGEND experiment\, including the results from the first year of data taki
 ng\, the current background levels observed in the region of interest\, an
 d the experiment's performance in terms of background rejection. Lastly\, 
 I will provide an update on the status of the upcoming LEGEND-1000 phase.\
 n\nhttps://agenda.ciemat.es/event/5035/
URL:https://agenda.ciemat.es/event/5035/
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