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SUMMARY:Background model of the ANAIS-112 dark matter experiment
DTSTART;VALUE=DATE-TIME:20210901T171500Z
DTEND;VALUE=DATE-TIME:20210901T173000Z
DTSTAMP;VALUE=DATE-TIME:20261017T034638Z
UID:indico-contribution-15876@indico.ific.uv.es
DESCRIPTION:Speakers: Susana Cebrian (Universidad de Zaragoza)\nThe ANAIS-
 112 experiment is intended to test the observation of an annual modulation
  signal by the DAMA/LIBRA experiment using 112.5 kg of NaI(Tl) detectors o
 perated in the Canfranc Underground Laboratory (Spain). Data taking is goi
 ng on since August\, 2017 and annual modulation results from the analysis 
 of three years of data have been presented\, being compatible with the abs
 ence of modulation.\n\nA complete study of the ANAIS-112 detector backgrou
 nd was carried out before unblinding data for the first modulation analysi
 s using the first year of data. A background model was developed for each 
 detector from the direct measurement of primordial and cosmogenic activity
  in crystals and other components and Monte Carlo simulation. The knowledg
 e of some cosmogenic isotopes activities considered in this model has been
  improved by profiting from the large accumulated three-year exposure\, an
 d using only events outside the Region of Interest\, has led to a better e
 xplanation of the detector background time evolution. These background stu
 dies have been relevant to understand the different background components 
 and to predict sensitivity as well as to model the time evolution consider
 ed in the annual modulation analysis.\n\nHere\, the ANAIS-112 background m
 odel will be firstly described\; then\, considering different analysis con
 ditions and energy ranges\, the comparison of model and measurements for e
 nergy spectra and counting rate time evolution for three years of data wil
 l be discussed.\n\nhttps://indico.ific.uv.es/event/6178/contributions/1587
 6/
LOCATION:
URL:https://indico.ific.uv.es/event/6178/contributions/15876/
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