Conveners
Experiments Background, Models & Simulations
- Roberto Santorelli (CIEMAT - Madrid)
Experiments Background, Models & Simulations
- Małgorzata Harańczyk (Jagiellonian University)
The LEGEND experiment searches for neutrinoless double beta decay in $^{76}$Ge-enriched high-purity germanium detectors operating in liquid argon, whose scintillation acts as an active veto against external background events. Using specialized detector geometries, pulse shape discrimination is performed to further veto background events. LEGEND-200 has completed about one year of stable...
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for 0νββ decay that has successfully reached the one-tonne mass scale. The detector, located at the LNGS in Italy, consists of an array of 988 TeO2 crystals arranged in a compact cylindrical structure of 19 towers. CUORE began its first physics data run in 2017 at a base temperature of...
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first tonne-scale experiment using cryogenic calorimeters. The detector is located underground at the Laboratori Nazionali del Gran Sasso in Italy and consists of 988 TeO2 crystals operated in a dilution refrigerator at a base temperature of about 10 mK. Thanks to the large exposure, sharp energy resolution, segmented...
Next generation neutrinoless double beta experiments aims at covering the inverted hierarchy region of the neutrino mass spectrum, with sensitivities on the half-lives greater than 10$^{27}$ years. The CUPID experiment will exploit cryogenic calorimeters to search for neutrinoless double beta decay of $^{100}$Mo. To reach the target sensitivities one of the key requirements is the...
The ANAIS experiment is intended to search for dark matter annual modulation with ultrapure NaI(Tl) scintillators in order to provide a model-independent confirmation or refutation of the long-standing positive annual modulation signal in the low energy detection rate of the DAMA/LIBRA experiment at the Gran Sasso Underground Laboratory (Italy), using the same target and technique. ANAIS-112,...
BINGO is a project dedicated to explore and demonstrate new methods for background reduction in cryogenic calorimetric $0\nu\beta\beta$ searches. With a target background index at the level of $10^{-5}$ counts/(keV kg yr) it aims at providing a path towards a nearly background free $0\nu\beta\beta$ experiment with a tonne of the isotopes of interest $^{100}$Mo and $^{130}$Te. The major design...
The PandaX-4T experiment uses a liquid xenon time projection chamber (TPC) to search for dark matter and other rare events. To achieve this, PandaX employs various techniques to remove and precisely measure the radioactivity of detector components, such as radon detectors, krypton systems, alpha detectors, and HPGe detectors. The photomultiplier tubes (PMTs) significantly contribute to the...
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kt liquid scintillator detector under construction at 700 m underground. It will enable studies of various neutrino physics topics, and the level of radioactive background is an essential factor for achieving the desired sensitivities. The raw materials of the JUNO detector have already been screened and met the radio purity...
Rare event searches, such as those targeting dark matter interactions and neutrinoless double beta decay (0νββ), face challenges from gamma-rays originating in rock, contributing to electron recoil background. This report presents a dual investigation: measurements of natural radioactivity in rock samples from Boulby Mine and a simulation assessing shielding thickness for a future detector....
The HADES underground research facility, located in a clay formation at a depth of 225 meters, is operated by Euridice. The ultralow background gamma-ray spectrometry laboratory is operated by the Joint Research Centre of the European Commission (JRC) for radioactivity measurements, made possible by a significant reduction in muon flux (secondary cosmic rays) by a factor of 5000 compared to...
