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SUMMARY:Estimation of Backgrounds in LEGEND
DTSTART;VALUE=DATE-TIME:20201009T144000Z
DTEND;VALUE=DATE-TIME:20201009T145500Z
DTSTAMP;VALUE=DATE-TIME:20260819T062748Z
UID:indico-contribution-2237@cern.ch
DESCRIPTION:Speakers: Matthew Green (NC State University / ORNL / TUNL)\nT
 he LEGEND Collaboration aims to combine the successes of the GERDA Experim
 ent and the {\\sc Majorana Demonstrator} with newly-developed technologies
  in a ton-scale\, germanium-based experiment with discovery potential span
 ning the inverted neutrino mass-hierarchy regime. The LEGEND Collaboration
  has established a phased deployment scheme: an initial 200-kg array (LEGE
 ND-200)\, deployed in the existing GERDA cryostat and shielding infrastruc
 ture at LNGS\, followed by a 1000-kg array (LEGEND-1000) in a newly-constr
 ucted liquid cryogen shield and veto. This phased approach allows for the 
 rapid construction of a world-leading experiment with half-life sensitivit
 ies in excess of 10$^{27}$ yrs\, followed by a nearly-background-free expe
 riment with 10 ton-yrs exposure\, yielding detection sensitivity for half-
 lives in excess of 10$^{28}$ yrs. To achieve these sensitivities\, we aim 
 for background indices below 2$\\times$10$^{-4}$ counts / (keV-kg-yr) in L
 EGEND-200\, and 1$\\times$10$^{-5}$ counts / (keV-kg-yr) in LEGEND-1000. T
 his talk will summarize the designs\, background sources\, and background 
 estimation for both phases of LEGEND.\n\nhttps://indico.particle.mephi.ru/
 event/35/contributions/2237/
LOCATION:Zoom Neutrino
URL:https://indico.particle.mephi.ru/event/35/contributions/2237/
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