The $0\nu2\beta$-decay CROSS experiment: preliminary results and prospects

Autor: The CROSS collaboration, I. C. Bandac, A. S. Barabash, L. Bergé, M. Brière, C. Bourgeois, P. Carniti, M. Chapellier, M. de Combarieu, I. Dafinei, F. A. Danevich, N. Dosme, D. Doullet, L. Dumoulin, F. Ferri, A. Giuliani, C. Gotti, P. Gras, E. Guerard, A. Ianni, H. Khalife, S. I. Konovalov, E. Legay, P. Loaiza, P. de Marcillac, S. Marnieros, C. A. Marrache-Kikuchi, C. Nones, V. Novati, E. Olivieri, C. Oriol, G. Pessina, D. V. Poda, T. Redon, V. I. Tretyak, V. I. Umatov, M. M. Zarytsky, A. S. Zolotarova
Přispěvatelé: Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), CROSS, Bandac, I, Barabash, A, Berge, L, Briere, M, Bourgeois, C, Carniti, P, Chapellier, M, de Combarieu, M, Dafinei, I, Danevich, F, Dosme, N, Doullet, D, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, P, Guerard, E, Ianni, A, Khalife, H, Konovalov, S, Legay, E, Loaiza, P, de Marcillac, P, Marnieros, S, Marrache-Kikuchi, C, Nones, C, Novati, V, Olivieri, E, Oriol, C, Pessina, G, Poda, D, Redon, T, Tretyak, V, Umatov, V, Zarytsky, M, Zolotarova, A
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Nuclear and High Energy Physics
Physics - Instrumentation and Detectors
background: induced
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
01 natural sciences
law.invention
Crystal
Nuclear physics
CUORE
phonon: detector
bolometer
double-beta decay: (0neutrino)
Observatory
law
0103 physical sciences
Dark Matter and Double Beta Decay (experiments)
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
010306 general physics
lepton number: violation
Nuclear Experiment
Physics
010308 nuclear & particles physics
superconductivity
down: mass
Detector
Bolometer
sensitivity
Lepton number
crystal: surface
observatory
MAJORANA
mass: Majorana
radioactivity
lcsh:QC770-798
Neutrino
experimental results
Zdroj: JHEP
JHEP, 2020, 01, pp.018. ⟨10.1007/JHEP01(2020)018⟩
Journal of High Energy Physics
Journal of High Energy Physics, 2020, 01, pp.018. ⟨10.1007/JHEP01(2020)018⟩
Journal of High Energy Physics, Vol 2020, Iss 1, Pp 1-31 (2020)
ISSN: 1126-6708
1029-8479
DOI: 10.1007/JHEP01(2020)018⟩
Popis: International audience; Neutrinoless double-beta decay is a key process in particle physics. Its experimental investigation is the only viable method that can establish the Majorana nature of neutrinos, providing at the same time a sensitive inclusive test of lepton number violation. CROSS (Cryogenic Rare-event Observatory with Surface Sensitivity) aims at developing and testing a new bolometric technology to be applied to future large-scale experiments searching for neutrinoless double-beta decay of the promising nuclei $^{100}$Mo and $^{130}$Te. The limiting factor in large-scale bolometric searches for this rare process is the background induced by surface radioactive contamination, as shown by the results of the CUORE experiment. The basic concept of CROSS consists of rejecting this challenging background component by pulse-shape discrimination, assisted by a proper coating of the faces of the crystal containing the isotope of interest and serving as energy absorber of the bolometric detector. In this paper, we demonstrate that ultra-pure superconductive Al films deposited on the crystal surfaces act successfully as pulse-shape modifiers, both with fast and slow phonon sensors. Rejection factors higher than 99.9% of α surface radioactivity have been demonstrated in a series of prototypes based on crystals of Li$_{2}$MoO$_{4}$ and TeO$_{2}$. We have also shown that point-like energy depositions can be identified up to a distance of ∼ 1 mm from the coated surface. The present program envisions an intermediate experiment to be installed underground in the Canfranc laboratory (Spain) in a CROSS-dedicated facility. This experiment, comprising ∼ 3×10$^{25}$ nuclei of $^{100}$Mo, will be a general test of the CROSS technology as well as a worldwide competitive search for neutrinoless double-beta decay, with sensitivity to the effective Majorana mass down to 70 meV in the most favorable conditions.[graphic not available: see fulltext]
Databáze: OpenAIRE
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