New measurement of double-
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>
 decays of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Mo</mml:mi><mml:mprescripts/><mml:none/><mml:mn>100</mml:mn></mml:mmultiscripts></mml:math>
 to excited states of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ru</mml:mi><mml:mprescripts/><mml:none/><mml:mn>100</mml:mn></mml:mmultiscripts></mml:math>
 with the

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.; Jésus, M. de; Dixon, T.; Dumoulin, L.; Eitel, K.; Ferri, F.; Fujikawa, B. K.; Gascon, J.; Gironi, L.; Giuliani, A.; Grigorieva, V. D.; Gros, M.; Helis, D.; Huang, H. Z.; Huang, R. G.; Imbert, L.; Johnston, J.; Juillard, A.; Khalife, H.; Kleifges, M.; Kobychev, V.; Kolomensky, Yu. G.; Коновалов, С. И.; Kotila, J.; Loaiza, P.; Ma, L.; Makarov, E. P.; Marcillac, P. de; Mariam, R.; Marini, L.; Marnieros, S.; Navick, X.F.; Nones, C.; Norman, E. B.; Olivieri, E.; Ouellet, J. L.; Pagnanini, L.; Pattavina, L.; Paul, Biswajit; Pavan, M.; Peng, H.; Pessina, G.; Pirro, S.; Poda, D.V.; Polischuk, O. G.; Pozzi, S.; Previtali, E.; Redon, T.; Rojas, Alma D.; Rozov, S.; Sanglard, V.; Scarpaci, J. A.; Schmidt, Benjamin; Shen, Yang; Shlegel, V.N.; Singh, V.; Tomei, C.; Tretyak, V. I.; Umatov, V. I.; Vagneron, L.; Velázquez, M.; Welliver, B.; Winslow, L. A.; Xue, M.; Yakushev, E.; Zarytskyy, M. M.; Zolotarova, A.

doi:10.1103/physrevc.107.025503

Cited by 10 publications

(6 citation statements)

References 67 publications

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“…Natural and

Mo-enriched Li

MoO

(Li

MoO

; enrichment is ∼97%) have been developed within the LUMINEU project and have been used in searches for

Mo double-

decay [ 13 , 14 , 15 , 16 ]. The LUMINEU technology of scintillating bolometers has been adopted for the CUPID-Mo double-

experiments [ 17 , 18 , 19 , 20 ]. Such a detector material has also been selected for the CUPID [ 21 , 22 , 23 , 24 , 25 ] and CROSS [ 23 , 25 , 26 , 27 ] projects, and it garners great interest for use in the AMoRE experiment [ 28 , 29 , 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Li2100deplMoO4 Scintillating Bolometers for Rare-Event Search Experiments

Bandac,

Barabash,

Bergé

et al. 2023

Sensors

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We report on the development of scintillating bolometers based on lithium molybdate crystals that contain molybdenum that has depleted into the double-β active isotope 100Mo (Li2100deplMoO4). We used two Li2100deplMoO4 cubic samples, each of which consisted of 45-millimeter sides and had a mass of 0.28 kg; these samples were produced following the purification and crystallization protocols developed for double-β search experiments with 100Mo-enriched Li2MoO4 crystals. Bolometric Ge detectors were utilized to register the scintillation photons that were emitted by the Li2100deplMoO4 crystal scintillators. The measurements were performed in the CROSS cryogenic set-up at the Canfranc Underground Laboratory (Spain). We observed that the Li2100deplMoO4 scintillating bolometers were characterized by an excellent spectrometric performance (∼3–6 keV of FWHM at 0.24–2.6 MeV γs), moderate scintillation signal (∼0.3–0.6 keV/MeV scintillation-to-heat energy ratio, depending on the light collection conditions), and high radiopurity (228Th and 226Ra activities are below a few µBq/kg), which is comparable with the best reported results of low-temperature detectors that are based on Li2MoO4 using natural or 100Mo-enriched molybdenum content. The prospects of Li2100deplMoO4 bolometers for use in rare-event search experiments are briefly discussed.

show abstract

“…Natural and

Mo-enriched Li

MoO

(Li

MoO

; enrichment is ∼97%) have been developed within the LUMINEU project and have been used in searches for

Mo double-

decay [ 13 , 14 , 15 , 16 ]. The LUMINEU technology of scintillating bolometers has been adopted for the CUPID-Mo double-

Section: Introductionmentioning

confidence: 99%

Li2100deplMoO4 Scintillating Bolometers for Rare-Event Search Experiments

Bandac,

Barabash,

Bergé

et al. 2023

Sensors

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show abstract

“…The same events are obtained with a selection cut 𝐷 > 4, thus, for simplification we have chosen only the energy cut to select 𝛼 events. Unlike most other analysis of scintillating bolometers we also develop a light selection cut for M 2 events as described in detail in [18]. For a M 2 event the scintillation light recorded can be the sum of that from the crystal above and below a given LD.…”

Section: Particle Identificationmentioning

confidence: 99%

“…For the two LMOs adjacent to this LD we make a cut of −10 to 3 𝜎, to take into account the energy directly deposited in the light detector. For more details see [18]. In addition, to further suppress events from this localized 60 Co source we make a global LD anti-coincidence cut to remove the 𝛾 background originating from this LD.…”

Section: Particle Identificationmentioning

confidence: 99%

“…CUPID-Mo was also an important experiment in its own right. In particular, it has set the world-leading limits on the half-life of 0𝜈𝛽𝛽 decay of 100 Mo to both ground and excited states [6,11,18]. The detailed study of the experimental backgrounds in the CUPID-Mo experiment enables a high precision measurement of the 2𝜈𝛽𝛽 decay rate and allows to disentangle between the Single State Dominance (SSD) or High State Dominance (HSD) mechanisms [19,20] of the 2𝜈𝛽𝛽 decay process in 100 Mo.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

et al. 2022

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The CUPID-Mo experiment to search for 0$$\nu \beta \beta $$ ν β β decay in $$^{100}$$ 100 Mo has been recently completed after about 1.5 years of operation at Laboratoire Souterrain de Modane (France). It served as a demonstrator for CUPID, a next generation 0$$\nu \beta \beta $$ ν β β decay experiment. CUPID-Mo was comprised of 20 enriched $$\hbox {Li}_{{2}}$$ Li 2 $$^{100}$$ 100 $$\hbox {MoO}_4$$ MoO 4 scintillating calorimeters, each with a mass of $$\sim 0.2$$ ∼ 0.2 kg, operated at $$\sim 20$$ ∼ 20 mK. We present here the final analysis with the full exposure of CUPID-Mo ($$^{100}$$ 100 Mo exposure of 1.47 $$\hbox {kg} \times \hbox {year}$$ kg × year ) used to search for lepton number violation via 0$$\nu \beta \beta $$ ν β β decay. We report on various analysis improvements since the previous result on a subset of data, reprocessing all data with these new techniques. We observe zero events in the region of interest and set a new limit on the $$^{100}$$ 100 Mo 0$$\nu \beta \beta $$ ν β β decay half-life of $$T_{1/2}^{0\nu }$$ T 1 / 2 0 ν $$> {1.8}\times 10^{24}$$ > 1.8 × 10 24 year (stat. + syst.) at 90% CI. Under the light Majorana neutrino exchange mechanism this corresponds to an effective Majorana neutrino mass of $$\left<m_{\beta \beta }\right>$$ m β β $$<~{(0.28{-}0.49)} $$ < ( 0.28 - 0.49 ) eV, dependent upon the nuclear matrix element utilized.

show abstract

“…For this analysis we use the full data collected by CUPID-Mo. A detailed description of the data processing is given in [36] and was also used for [37,38]. An optimal filter based analysis chain [39], which maximizes the signal to noise ratio, is used to select physics events and estimate pulse amplitudes.…”

mentioning

confidence: 99%

Measurement of the 2νββ Decay Rate and Spectral Shape of Mo100 from the CUPID-Mo Ex

Augier,

Barabash,

Bellini

et al. 2023

Phys. Rev. Lett.

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New measurement of double- β decays of Mo100 to excited states of Ru100 with the

Cited by 10 publications

References 67 publications

Li2100deplMoO4 Scintillating Bolometers for Rare-Event Search Experiments

Li2100deplMoO4 Scintillating Bolometers for Rare-Event Search Experiments

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

Measurement of the 2νββ Decay Rate and Spectral Shape of Mo100 from the CUPID-Mo Ex

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