Final results on the $0νββ$ decay half-life limit of $^{100}$Mo from the CUPID-Mo experiment

Augier, C.; Barabash, A. S.; Bellini, F.; Benato, G.; Beretta, M.; Bergé, L.; Billard, J.; Borovlev, Yu. A.; Cardani, L.; Casali, N.; Cazes, A.; Chapellier, M.; Chiesa, D.; Dafinei, I.; Danevich, F. A.; De Jesus, M.; de Marcillac, P.; Dixon, T.; Dumoulin, L.; Eitel, K.; Ferri, F.; Fujikawa, B. K.; Gascon, J.; Gironi, L.; Giuliani, A.; Grigorieva, V. D.; Gros, M.; Helis, D. L.; Huang, H. Z. Huang R.; Imbert, L.; Johnston, J.; Juillard, A.; Khalife, H.; Kleifges, M.; Kobychev, V. V.; Kolomensky, Yu. G.; Konovalov, S. I.; Loaiza, P.; Ma, L.; Makarov, E. P.; Mariam, R.; Marini, L.; Marnieros, S.; Navick, X. -F.; Nones, C.; Norman, E. B.; Olivieri, E.; Ouellet, J. L.; Pagnanini, L.; Pattavina, L.; Paul, B.; Pavan, M.; Peng, H.; Pessina, G.; Pirro, S.; Poda, D. V.; Polischuk, O. G.; Pozzi, S.; Previtali, E.; Redon, Th.; Rojas, A.; Rozov, S.; Sanglard, V.; Scarpaci, J. A.; Schmidt, B.; Shen, Y.; Shlegel, V. N.; Singh, V.; Tomei, C.; Tretyak, V. I.; Umatov, V. I.; Vagneron, L.; Velázquez, M.; Welliver, B.; Winslow, L.; Xue, M.; Yakushev, E.; Zarytskyy, M.; Zolotarova, A. S.

doi:10.48550/arxiv.2202.08716

Cited by 3 publications

(5 citation statements)

References 42 publications

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“…As an independent physics experiment, AMoRE-I aims at the background level in the order of 0.01 counts/keV/kg/year at Q β β which equates to a half-life limit of ∼ 10 24 years. AMoRE-I sensitivity will be comparable to the recent half-lift limit of 1.8×10 24 years found in the CUPID-Mo project using Li 2 100 MoO 4 crystals and NTD Ge thermistors [6].…”

Section: Introductionsupporting

confidence: 66%

Status and performance of the AMoRE-I experiment on neutrinoless double beta decay

Kim,

Ha,

Jeon

et al. 2022

Preprint

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AMoRE is an international project to search for the neutrinoless double beta decay of 100 Mo using a detection technology consisting of magnetic microcalorimeters (MMCs) and molybdenum-based scintillating crystals. Data collection has begun for the current AMORE-I phase of the project, an upgrade from the previous pilot phase. AMoRE-I employs thirteen 48depl. Ca 100 MoO 4 crystals and five Li 2 100 MoO 4 crystals for a total crystal mass of 6.2 kg. Each detector module contains a scintillating crystal with two MMC channels for heat and light detection. We report the present status of the experiment and the performance of the detector modules.

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Section: Introductionsupporting

confidence: 66%

Status and performance of the AMoRE-I experiment on neutrinoless double beta decay

Kim,

Ha,

Jeon

et al. 2022

Preprint

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“…It is used as electrode materials in electrochemical cells, in the production of ceramics and different types of glass, in pharmacy as a medicine for mental disaster treatment, etc. Recently, lithium compounds have found application in particle physics as a precursor for producing lithium-containing cryogenic crystal detectors [1][2][3][4]. Lithium molybdate (Li 2 MoO 4 , LMO) crystal scintillators are being used in searches for rare-event processes such as two neutrino double beta decay (2νDBD) [1,2] and neutrinoless double beta decay (0νDBD) [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, lithium compounds have found application in particle physics as a precursor for producing lithium-containing cryogenic crystal detectors [1][2][3][4]. Lithium molybdate (Li 2 MoO 4 , LMO) crystal scintillators are being used in searches for rare-event processes such as two neutrino double beta decay (2νDBD) [1,2] and neutrinoless double beta decay (0νDBD) [3,4]. Lithium fluoride (LiF) crystals are applied to studies of rare α and β decays and dark matter particle searches [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Selection and purification of Li2CO3 precursor for bolometric double beta decay experiments

Shin,

Byeon,

Choe

et al. 2024

Front. Phys.

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This paper describes the preparation of radiopure lithium carbonate powder for the needs of low-background research, in particular, AMoRE-II, the second phase of a search for the neutrinoless double-beta decay (0νDBD) of the 100Mo isotope using over 100 kg of 100Mo contained in 200 kg of ultra-pure Li2100MoO4 bolometric crystals. About 150 kg of pure Li2CO3 powder is required to synthesize the crystals. The desired radiopurity for the lithium powder is 40K below 100 mBq/kg, and Th/U and Ra are at a few mBq/kg. Several commercially available powders were tested with ICP-MS and HPGe detectors at the Center for Underground Physics (CUP) of the Institute for Basic Science in Korea. The lowest purity of the tested products was 99.99%. The results of the powders’ radioassay at CUP showed that none of the tested products were suited for the 0νDBD search application. A special purification technology had to be developed to remove the original contamination of the powder with potassium (K), thorium (Th), uranium (U), and radium (Ra). Lithium carbonate crystallization via carbonization technique was inefficient in removing radiochemical impurities. Lithium formate fractional recrystallization effectively removed Ra, K, and Th, but the synthesis of the final lithium carbonate product had a low yield and required the introduction of additional chemicals. The analysis results of raw and purified powders, the decontamination efficiency, and plans are described in the article.

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“…For all mass ranges, however, neutrinoless double-beta decay (0νββ) plays a prominent role. 0νββ is the most sensitive probe of LNV [16], with current limits on 0νββ half lives exceeding 10 26 years [17,18] and prospects for improvements by two orders of magnitude in the next decade [19][20][21][22][23][24][25]. For M O(GeV), 0νββ decay is mainly driven by the exchange of light active neutrinos, and is proportional to the so-called effective neutrino mass m ββ .…”

mentioning

confidence: 99%

Neutrinoless double-beta decay in the neutrino-extended Standard Model

Dekens¹,

Vries²,

Mereghetti³

et al. 2023

Preprint

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We investigate neutrinoless double-beta decay (0νββ) in the minimal extension of the standard model of particle physics, the νSM, where gauge-singlet right-handed neutrinos give rise to Dirac and Majorana neutrino mass terms. We focus on the associated sterile neutrinos and argue that the usual evaluation of their contributions to 0νββ, based on mass-dependent nuclear matrix elements, is missing important contributions from neutrinos with ultrasoft and hard momenta. We identify the hadronic and nuclear matrix elements that enter the new contributions, and calculate all relevant nuclear matrix elements for 136 Xe using the nuclear shell model. Finally, we illustrate the impact on 0νββ rates in specific neutrino mass models and show that the new contributions significantly alter the 0νββ rate in most parts of the νSM parameter space.

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Final results on the $0νββ$ decay half-life limit of $^{100}$Mo from the CUPID-Mo experiment

Cited by 3 publications

References 42 publications

Status and performance of the AMoRE-I experiment on neutrinoless double beta decay

Status and performance of the AMoRE-I experiment on neutrinoless double beta decay

Selection and purification of Li2CO3 precursor for bolometric double beta decay experiments

Neutrinoless double-beta decay in the neutrino-extended Standard Model

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