Initial performance of the CUORE-0 experiment

Artusa, D. R.; Avignone, F. T.; Azzolini, O.; Balata, M.; Banks, Thomas; Bari, G.; Beeman, J. W.; Bellini, F.; Bersani, A.; Biassoni, M.; Brofferio, C.; Bucci, C.; Xiang-Zhou, Cai; Canonica, L.; Cao, X. G.; Capelli, S.; Carbone, L.; Cardani, L.; Carrettoni, M.; Casali, N.; Chiesa, D.; Chott, N.; Clemenza, M.; Cosmelli, C.; Cremonesi, O.; Creswick, R. J.; Dafinei, I.; Dally, A.; Datskov, V.; Deninno, M. M.; Domizio, S. Di; Vacri, M. L. Di; Ejzak, L.; Fang, D. Q.; Farach, Horácio A.; Faverzani, M.; Fernandes, G.; Ferri, E.; Ferroni, F.; Fiorini, E.; Freedman, S. J.; Fujikawa, B. K.; Giachero, A.; Gironi, L.; Giuliani, A.; Goett, J.; Gorla, P.; Gotti, C.; Gutierrez, T. D.; Häller, E. E.; Han, K.; Heeger, K. M.; Hennings‐Yeomans, R.; Huang, H. Z.; Kadel, R. W.; Kazkaz, K.; Keppel, G.; Kolomensky, Yu. G.; Li, Y. L.; Lim, K. E.; Liu, X.; G., Y.; Maiano, C.; Maino, M.; Martinez, M.; Maruyama, R.; Mei, Y.; Moggi, N.; Morganti, S.; Nisi, S.; Nones, C.; Norman, E. B.; Nucciotti, A.; O’Donnell, T.; Orio, F.; Orlandi, D.; Ouellet, J. L.; Pallavicini, M.; Palmieri, V.; Pattavina, L.; Pavan, M.; Pedretti, M.; Pessina, G.; Pettinacci, V.; Piperno, G.; Pirro, S.; Previtali, E.; Rosenfeld, C.; Rusconi, C.; Sala, Elena; Sangiorgio, S.; Scielzo, N. D.; Sisti, M.; Smith, A. R.; Taffarello, L.; Tenconi, M.; Terranova, F.; Tian, W. D.; Tomei, C.; Trentalange, S.; Ventura, G.; Vignati, M.; Wang, B. S.; Wang, H. W.; Wielgus, L.; Wilson, J. R.; Winslow, L. A.; Wise, T.; Zanotti, L.; Zarra, C.; Zhu, B. X.; Zucchelli, S.

doi:10.1140/epjc/s10052-014-2956-6

Cited by 67 publications

(88 citation statements)

References 24 publications

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“…On the other hand, the peaks in the α region are attributed to bulk contaminations of the TeO 2 crystals, while the other structures are attributed to surface contamination of the TeO 2 crystals and/or the close materials. The energy resolution evaluated on the 208 Tl line at 2615 keV is 5.2 keV FWHM, half-way between the improved performance of phase II and the 5.7 keV measured during phase I [34]. The continuum from 2.7 to 3.9 MeV, excluding the only clearly visible peak ascribed to 190 Pt, is attributed to degraded particles that deposit only a fraction of their energy in the crystal and the rest in inactive materials.…”

Section: Cuore-0mentioning

confidence: 87%

“…More details on the CUORE-0 data taking and analysis procedures can be found in [34,35]. CUORE-0 data taking started in March 2013, though in non optimal conditions, after a troubled preparation of the detector which identified unexpected flaws in the CUORE preparation procedures that were then fixed.…”

Section: Cuore-0mentioning

confidence: 99%

“…Main goal of the following phase of data taking was to measure the performance parameters while collecting statistics for evaluating the background level near the β β (0ν) ROI. The first CUORE-0 data were published in the Summer 2013 [34,35]. A long system maintenance then followed during which a full section of the dilution unit condensing line was completely replaced and other sections were refurbished.…”

Section: Cuore-0mentioning

confidence: 99%

“…Therefore, to improve the background for CUORE, we implemented a set of strict protocols to limit the radioactive contamination of the detector materials during production and assembly. The first tower produced on the CUORE detector assembly line and operated separately in the same cryostat which hosted Cuoricino, has been called CUORE-0 [12]. It has been taking data since March 2013.…”

Section: Introductionmentioning

confidence: 99%

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CUORE-0 results and prospects for the CUORE experiment

Cremonesi

Artusa²,

Avignone³

et al. 2015

AIP Conference Proceedings

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Abstract.With 741 kg of TeO 2 crystals and an excellent energy resolution of 5 keV (0.2%) at the region of interest, the CUORE (Cryogenic Underground Observatory for Rare Events) experiment aims at searching for neutrinoless double beta decay of 130 Te with unprecedented sensitivity. Expected to start data taking in 2015, CUORE is currently in an advanced construction phase at LNGS. CUORE projected neutrinoless double beta decay half-life sensitivity is 1.6 × 10 26 y at 1σ (9.5 × 10 25 y at the 90 % confidence level), in five years of live time, corresponding to an upper limit on the effective Majorana mass in the range 40-100 meV (50-130 meV). Further background rejection with auxiliary bolometric detectors could improve CUORE sensitivity and competitiveness of bolometric detectors towards a full analysis of the inverted neutrino mass hierarchy. CUORE-0 was built to test and demonstrate the performance of the upcoming CUORE experiment. It consists of a single CUORE tower (52 TeO 2 bolometers of 750 g each, arranged in a 13 floor structure) constructed strictly following CUORE recipes both for materials and assembly procedures. An experiment its own, CUORE-0 is expected to reach a sensitivity to the β β (0ν) half-life of 130 Te around 3×10 24 y in one year of live time. We present an update of the data, corresponding to an exposure of 18.1 kg y. An analysis of the background indicates that the CUORE performance goal is satisfied while the sensitivity goal is within reach.

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Section: Cuore-0mentioning

confidence: 87%

Section: Cuore-0mentioning

confidence: 99%

Section: Cuore-0mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CUORE-0 results and prospects for the CUORE experiment

Cremonesi

Artusa²,

Avignone³

et al. 2015

AIP Conference Proceedings

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“…The overall detector resolution was found to be 5.7 keV [20]. During some R&D runs the target energy resolution of 5 keV was consistently achieved [4], and in phase II of CUORE-0 reached 4.8 keV.…”

Section: Energy Resolutionmentioning

confidence: 88%

Neutrinoless double-beta decay search with CUORE and CUORE-0 experiments

Moggi

Artusa²,

Avignone³

et al. 2015

EPJ Web of Conferences

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Abstract. The Cryogenic Underground Observatory for Rare Events (CUORE) is an upcoming experiment designed to search for the neutrinoless double-beta decays. Observation of the process would unambiguously establish that neutrinos are Majorana particles and provide information on their absolute mass scale hierarchy. CUORE is now under construction and will consist of an array of 988 TeO 2 crystal bolometers operated at 10 mK, but the first tower (CUORE-0) is already taking data. The experimental techniques used will be presented as well as the preliminary CUORE-0 results. The current status of the full-mass experiment and its expected sensitivity will then be discussed.

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The LUCIFER Project: Achievements and Near Future Prospects

et al. 2016

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In the view of exploring the inverted hierarchy region future experiments investigating the neutrinoless double beta decay have to demand for detectors with excellent energy resolution and zero background in the energy region of interest. Cryogenic scintillating bolometers are very suitable detectors for this task since they provide particle discrimination: the simultaneous detection of the phonon and light signal allows us to identify the interacting type of particle and thus guarantees a suppression of α-induced backgrounds, the key-issue for next-generation tonne-scale bolometric experiments. The LUCIFER project aims at running the first array of enriched scintillating Zn82Se bolometers (total mass of about 8kg of 82Se) with a background level as low as 10--3 counts/(keV kg y) in the energy region of interest. The main effort is currently focused on the finalization of the crystal growth procedure in order to achieve high quality Zn82Se crystals both in terms of radiopurity and bolometric properties. We present results from tests of such crystals operated at mK temperatures which demonstrate the excellent background rejection capabilities of this detection approach towards a background-free demonstrator experiment. Besides, the high purity of the enriched 82Se material allows us to establish the most stringent limits on the half-life of the double beta decay of 82Se on excited levels

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Initial performance of the CUORE-0 experiment

Cited by 67 publications

References 24 publications

CUORE-0 results and prospects for the CUORE experiment

CUORE-0 results and prospects for the CUORE experiment

Neutrinoless double-beta decay search with CUORE and CUORE-0 experiments

The LUCIFER Project: Achievements and Near Future Prospects

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