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1. Searching for Beyond the Standard Model physics using the improved description of $^{100}$Mo $2\nu\beta\beta$ decay spectral shape with CUPID-Mo

Author

Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Celi, E., Chapellier, M., Chiesa, D., Dafinei, I., Danevich, F. A., De Jesus, M., 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., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Kotila, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, 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., Šimkovic, F., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., War, B., Welliver, B., Winslow, L., Xue, M., Yakushev, E., Zarytskyy, M., and Zolotarova, A. S.

Subjects
Nuclear Experiment
Abstract

The current experiments searching for neutrinoless double-$\beta$ ($0\nu\beta\beta$) decay also collect large statistics of Standard Model allowed two-neutrino double-$\beta$ ($2\nu\beta\beta$) decay events. These can be used to search for Beyond Standard Model (BSM) physics via $2\nu\beta\beta$ decay spectral distortions. $^{100}$Mo has a natural advantage due to its relatively short half-life, allowing higher $2\nu\beta\beta$ decay statistics at equal exposures compared to the other isotopes. We demonstrate the potential of the dual read-out bolometric technique exploiting a $^{100}$Mo exposure of 1.47 kg $\times$ y, acquired in the CUPID-Mo experiment at the Modane underground laboratory (France). We set limits on $0\nu\beta\beta$ decays with the emission of one or more Majorons, on $2\nu\beta\beta$ decay with Lorentz violation, and $2\nu\beta\beta$ decay with a sterile neutrino emission. In this analysis, we investigate the systematic uncertainty induced by modeling the $2\nu\beta\beta$ decay spectral shape parameterized through an improved model, an effect never considered before. This work motivates searches for BSM processes in the upcoming CUPID experiment, which will collect the largest amount of $2\nu\beta\beta$ decay events among the next-generation experiments.

Published
2024

2. Searching for beyond the Standard Model physics using the improved description of 100Mo 2νββ decay spectral shape with CUPID-Mo

Author

Augier, C, Barabash, AS, Bellini, F, Benato, G, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Cardani, L, Casali, N, Cazes, A, Celi, E, Chapellier, M, Chiesa, D, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Navick, XF, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Šimkovic, F, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Ware, B, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

The current experiments searching for neutrinoless double-β (0νββ) decay also collect large statistics of Standard Model allowed two-neutrino double-β (2νββ) decay events. These can be used to search for Beyond Standard Model (BSM) physics via 2νββ decay spectral distortions. 100Mo has a natural advantage due to its relatively short half-life, allowing higher 2νββ decay statistics at equal exposures compared to the other isotopes. We demonstrate the potential of the dual read-out bolometric technique exploiting a 100Mo exposure of 1.47 kg × years, acquired in the CUPID-Mo experiment at the Modane underground laboratory (France). We set limits on 0νββ decays with the emission of one or more Majorons, on 2νββ decay with Lorentz violation, and 2νββ decay with a sterile neutrino emission. In this analysis, we investigate the systematic uncertainty induced by modeling the 2νββ decay spectral shape parameterized through an improved model, an effect never considered before. This work motivates searches for BSM processes in the upcoming CUPID experiment, which will collect the largest amount of 2νββ decay events among the next-generation experiments.

Published
2024

3. Test of $^{116}$CdWO$_4$ and Li$_2$MoO$_4$ scintillating bolometers in the CROSS underground facility with upgraded detector suspension

Author

Ahmine, A., Bandac, I. C., Barabash, A. S., Berest, V., Bergé, L., Calvo-Mozota, J. M., Carniti, P., Chapellier, M., Dafinei, I., Danevich, F. A., Dixon, T., Dumoulin, L., Ferri, F., Giuliani, A., Gotti, C., Gras, P., Helis, D. L., Ianni, A., Imbert, L., Khalife, H., Kobychev, V. V., Konovalov, S. I., Loaiza, P., de Marcillac, P., Marnieros, S., Marrache-Kikuchi, C. A., Martinez, M., Nones, C., Olivieri, E., de Solórzano, A. Ortiz, Peinaud, Y., Pessina, G., Poda, D. V., Redon, Th., Rosier, Ph., Scarpaci, J. A., Tretyak, V. I., Umatov, V. I., Velazquez, M., Zarytskyy, M. M., and Zolotarova, A.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

In preparation to the CROSS $2\beta$ decay experiment, we installed a new detector suspension with magnetic dumping inside a pulse-tube cryostat of a dedicated low-background facility at the LSC (Spain). The suspension was tested with two scintillating bolometers based on large-volume 116CdWO4 (CWO-enr) and Li2MoO4 (LMO) crystals. The former, a reference device, was used for testing new noise conditions and for comparing bolometric performance of an advanced Li2MoO4 crystal developed in the framework of the CLYMENE project, in view of next-generation double-beta decay experiments like CUPID. We cooled down detectors to 15 mK and achieved high performance for all tested devices. In particular both CWO-enr and LMO bolometers demonstrated the energy resolution of 6 keV FWHM for the 2.6 MeV gamma quanta, among the best for thermal detectors based on such compounds. The baseline noise resolution (FWHM) of the CWO-enr detector was improved by 2 keV, compared to the best previous measurement of this detector in the CROSS facility, while the noise of the Ge-based optical bolometer was improved by a factor 2, to 100 eV FWHM. Despite of the evident progress in the improving of noise conditions of the set-up, we see high-frequency harmonics of a pulse-tube induced noise, suggesting a noise pick-up by cabling. Another Ge light detector was assisted with the signal amplification exploiting the Neganov-Trofimov-Luke effect, which allowed to reach 20 eV FWHM noise resolution by applying 60 V electrode bias. Highly-efficient particle identification was achieved with both detectors, despite a low scintillation efficiency of the LMO material. The radiopurity level of the LMO crystal is rather high; only traces of 210Po and 226Ra were detected (0.1 mBq/kg each), while the 228Th activity is expected to be at least an order of magnitude lower, as well as a 40K activity is found to be < 6 mBq/kg., Comment: Prepared for submission to JINST, 26 pages, 8 figures, 2 tables

Published
2023

4. Measurement of the $2\nu\beta\beta$ decay rate and spectral shape of $^{100}$Mo from the CUPID-Mo experiment

Author

Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, 6 M., Berge, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Celi, E., Chapellier, M., Chiesa, D., Dafinei, I., Danevich, F. A., De Jesus, M., 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., Kotila, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, 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., Simkovic, F., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velazquez, M., Ware, B., Welliver, B., Winslow, L., Xue, M., Yakushev, E., Zarytskyy, M., and Zolotarova, A. S.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Neutrinoless double beta decay ($0\nu\beta\beta$) is a yet unobserved nuclear process which would demonstrate Lepton Number violation, a clear evidence of beyond Standard Model physics. The process two neutrino double beta decay ($2\nu\beta\beta)$ is allowed by the Standard Model and has been measured in numerous experiments. In this letter, we report a measurement of $2\nu\beta\beta$ decay half-life of $^{100}$Mo to the ground state of $^{100}$Ru of $(7.07~\pm~0.02~\text{(stat.)}~\pm~0.11~\text{(syst.)})~\times~10^{18}$~yr by the CUPID-Mo experiment. With a relative precision of $\pm~1.6$ \% this is the most precise measurement to date of a $2\nu\beta\beta$ decay rate in $^{100}$Mo. In addition, we constrain higher-order corrections to the spectral shape which provides complementary nuclear structure information. We report a novel measurement of the shape factor $\xi_{3,1}=0.45~\pm 0.03~\text{(stat.)} \ \pm 0.05 \ \text{(syst.)}$, which is compared to theoretical predictions for different nuclear models. We also extract the first value for the effective axial vector coupling constant obtained from a spectral shape study of $2\nu\beta\beta$ decay., Comment: 8 pages, 5 figures

Published
2023

5. Measurement of the 2νββ Decay Rate and Spectral Shape of Mo100 from the CUPID-Mo Experiment

Author

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

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CUPID-Mo Collaboration, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

Neutrinoless double beta decay (0νββ) is a yet unobserved nuclear process that would demonstrate Lepton number violation, a clear evidence of beyond standard model physics. The process two neutrino double beta decay (2νββ) is allowed by the standard model and has been measured in numerous experiments. In this Letter, we report a measurement of 2νββ decay half-life of ^{100}Mo to the ground state of ^{100}Ru of [7.07±0.02(stat)±0.11(syst)]×10^{18}  yr by the CUPID-Mo experiment. With a relative precision of ±1.6% this is the most precise measurement to date of a 2νββ decay rate in ^{100}Mo. In addition, we constrain higher-order corrections to the spectral shape, which provides complementary nuclear structure information. We report a novel measurement of the shape factor ξ_{3,1}=0.45±0.03(stat)±0.05(syst) based on a constraint on the ratio of higher-order terms from theory, which can be reliably calculated. This is compared to theoretical predictions for different nuclear models. We also extract the first value for the effective axial vector coupling constant obtained from a spectral shape study of 2νββ decay.

Published
2023

6. The background model of the CUPID-Mo $0\nu\beta\beta$ experiment

Author

Collaboration, CUPID-Mo, Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Celi, E., 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., Kotila, J., 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., 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., and Zolotarova, A. S.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation $0\nu\beta\beta$ decay experiment, CUPID. It consisted of an array of 20 enriched Li$_{2}$$ ^{100}$MoO$_4$ bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform and validate the background prediction for CUPID. In this paper, we present a detailed model of the CUPID-Mo backgrounds. This model is able to describe well the features of the experimental data and enables studies of the $2\nu\beta\beta$ decay and other processes with high precision. We also measure the radio-purity of the Li$_{2}$$^{100}$MoO$_4$ crystals which are found to be sufficient for the CUPID goals. Finally, we also obtain a background index in the region of interest of 3.7$^{+0.9}_{-0.8}$(stat)$^{+1.5}_{-0.7}$(syst)$\times10^{-3}$counts/$\Delta$E$_{FWHM}$/mol$_{iso}$/yr, the lowest in a bolometric $0\nu\beta\beta$ decay experiment.

Published
2023
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7. Li$_2$$^{100\textrm{depl}}$MoO$_4$ Scintillating Bolometers for Rare-Event Search Experiments

Author

Bandac, I. C., Barabash, A. S., Bergé, L., Borovlev, Yu. A., Calvo-Mozota, J. M., Carniti, P., Chapellier, M., Dafinei, I., Danevich, F. A., Dumoulin, L., Ferri, F., Giuliani, A., Gotti, C., Gras, Ph., Grigorieva, V. D., Ianni, A., Khalife, H., Kobychev, V. V., Konovalov, S. I., Loaiza, P., Madhukuttan, M., Makarov, E. P., de Marcillac, P., Marnieros, S., Marrache-Kikuchi, C. A., Martinez, M., Nones, C., Olivieri, E., de Solórzano, A. Ortiz, Pessina, G., Poda, D. V., Redon, Th., Scarpaci, J. A., Shlegel, V. N., Tretyak, V. I., Umatov, V. I., Zarytskyy, M. M., and Zolotarova, A.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

We report on the development of scintillating bolometers based on lithium molybdate crystals containing molybdenum depleted in the double-$\beta$ active isotope $^{100}$Mo (Li$_2$$^{100\textrm{depl}}$MoO$_4$). We used two Li$_2$$^{100\textrm{depl}}$MoO$_4$ cubic samples, 45 mm side and 0.28 kg each, produced following purification and crystallization protocols developed for double-$\beta$ search experiments with $^{100}$Mo-enriched Li$_2$MoO$_4$ crystals. Bolometric Ge detectors were utilized to register scintillation photons emitted by the Li$_2$$^{100\textrm{depl}}$MoO$_4$ crystal scintillators. The measurements were performed in the CROSS cryogenic set-up at the Canfranc underground laboratory (Spain). We observed that the Li$_2$$^{100\textrm{depl}}$MoO$_4$ scintillating bolometers are characterized by excellent spectrometric performance ($\sim$3--6 keV FWHM at 0.24--2.6 MeV $\gamma$'s), moderate scintillation signal ($\sim$0.3--0.6 keV/MeV depending on light collection conditions) and high radiopurity ($^{228}$Th and $^{226}$Ra activities are below a few $\mu$Bq/kg), comparable to the best reported results of low-temperature detectors based on Li$_2$MoO$_4$ with natural or $^{100}$Mo-enriched molybdenum content. Prospects of Li$_2$$^{100\textrm{depl}}$MoO$_4$ bolometers for use in rare-event search experiments are briefly discussed., Comment: Prepared for submission to MDPI Sensors; 16 pages, 7 figures, and 3 tables

Published
2023

8. Enhanced light signal for the suppression of pile-up events in Mo-based bolometers for the $0\nu\beta\beta$ decay search

Author

Ahmine, A., Armatol, A., Bandac, I., Bergé, L., Calvo-Mozota, J. M., Carniti, P., Chapellier, M., Dixon, T., Dumoulin, L., Giuliani, A., Gras, Ph., Ferri, F., Imbert, L., Khalife, H., Loaiza, P., de Marcillac, P., Marnieros, S., Marrache-Kikuchi, C. A., Nones, C., Olivieri, E., de Solòrzano, A. Ortiz, Pessina, G., Poda, D. V., Redon, Th., Scarpaci, J. A., Velàzquez, M., and Zolotorova, A.

Subjects
Physics - Instrumentation and Detectors
Abstract

Random coincidences of events could be one of the main sources of background in the search for neutrino-less double-beta decay of $^{100}$Mo with macro-bolometers, due to their modest time resolution. Scintillating bolometers as those based on Li$_2$MoO$_4$ crystals and employed in the CROSS and CUPID experiments can eventually exploit the coincident fast signal detected in a light detector to reduce this background. However, the scintillation provides a modest signal-to-noise ratio, making difficult a pile-up pulse-shape recognition and rejection at timescales shorter than a few ms. Neganov-Trofimov-Luke assisted light detectors (NTL-LDs) offer the possibility to effectively increase the signal-to-noise ratio, preserving a fast time-response, and enhance the capability of pile-up rejection via pulse shape analysis. In this article we present: a) an experimental work performed with a Li$_2$MoO$_4$ scintillating bolometer, studied in the framework of the CROSS experiment, and utilizing a NTL-LD; b) a simulation method to reproduce, synthetically, randomly coincident two-neutrino double-beta decay events; c) a new analysis method based on a pulse-shape discrimination algorithm capable of providing high pile-up rejection efficiencies. We finally show how the NTL-LDs offer a balanced solution between performance and complexity to reach background index $\sim$$10^{-4}$ counts/keV/kg/year with 280~g Li$_2$MoO$_4$ ($^{100}$Mo enriched) bolometers at 3034 keV, the Q-value of the double-beta decay, and target the goal of a next generation experiment like CUPID.

Published
2023
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9. New measurement of double beta decays of $^{100}$Mo to excited states of $^{100}$Ru with the CUPID-Mo experiment

Author

Collaboration, CUPID-Mo, 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., 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., Kotilla, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, 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., and Zolotarova, A. S.

Subjects
Nuclear Experiment
Abstract

The CUPID-Mo experiment, located at Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20 Li$_2^{100}$MoO$_4$ (LMO) calorimeters each equipped with a Ge light detector (LD) for particle identification. In this work, we present the result of a search for two-neutrino and neutrinoless double beta decays of $^{100}$Mo to the first 0$^+$ and $2^+$ excited states of $^{100}$Ru using the full CUPID-Mo exposure (2.71 kg$\times$yr of LMO). We measure the half-life of $2\nu\beta\beta$ decay to the $0^{+}_1$ state as $T_{1/2}^{2\nu \rightarrow 0_1^+}=7.5\pm 0.8 \ \text{(stat.)} \ ^{+ 0.4}_{-0.3} \ \text{(syst.)} )\times 10^{20} \ \mathrm{yr}$. The bolometric technique enables measurement of the electron energies as well as the gamma rays from nuclear de-excitation and this allows us to set new limits on the two-neutrino decay to the $2_1^+$ state of $T^{2\nu \rightarrow 2_1^+}_{1/2}>4.4\times 10^{21} \ \mathrm{yr} \ \text{(90 % c.i.)}$ and on the neutrinoless modes of $T_{1/2}^{0\nu\rightarrow 2_1^+}>2.1\times10^{23} \ \mathrm{yr}\ \text{(90 % c.i.)}$, $T_{1/2}^{0\nu\rightarrow 0_1^+}>1.2\times10^{23} \ \mathrm{yr}\ \text{(90 % c.i.)}$. Information on the electrons spectral shape is obtained which allows us to make the first comparison of the single state (SSD) and higher state (HSD) $2\nu\beta\beta$ decay models for the $0_1^+$ excited state of $^{100}$Ru., Comment: 22 pages, 15 figures

Published
2022

10. New measurement of double-β decays of Mo100 to excited states of Ru100 with the CUPID-Mo experiment

Author

Augier, C, Barabash, AS, 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, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract

The CUPID-Mo experiment, located at the Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20Li2Mo100O4 (LMO) calorimeters, each equipped with a Ge light detector for particle identification. In this work, we present the result of a search for two-neutrino and neutrinoless double-β decays of Mo100 to the first 0+ and 2+ excited states of Ru100 using the full CUPID-Mo exposure (2.71kgyr of LMO). We measure the half-life of 2νββ decay to the 01+ state as T1/22ν→01+=(7.5±0.8(stat.)-0.3+0.4(syst.))×1020yr. The bolometric technique enables measurement of the electron energies as well as the γ rays from nuclear deexcitation and this allows us to set new limits on the two-neutrino decay to the 21+ state of T1/22ν→21+>4.4×1021yr(90% c.i.) and on the neutrinoless modes of T1/20ν→21+>2.1×1023yr(90% c.i.), T1/20ν→01+>1.2×1023yr(90% c.i.). Information on the electrons' spectral shape is obtained, which allows us to make the first comparison of the single and higher state dominance 2νββ decay models for the 01+ excited state of Ru100.

Published
2023

11. The background model of the CUPID-Mo 0νββ experiment

Author

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

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation 0 νββ decay experiment, CUPID. It consisted of an array of 20 enriched Li 2100 MoO 4 bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform and validate the background prediction for CUPID. In this paper, we present a detailed model of the CUPID-Mo backgrounds. This model is able to describe well the features of the experimental data and enables studies of the 2 νββ decay and other processes with high precision. We also measure the radio-purity of the Li 2100 MoO 4 crystals which are found to be sufficient for the CUPID goals. Finally, we also obtain a background index in the region of interest of 3.7 -0.8+0.9 (stat) -0.7+1.5 (syst) ×10-3 counts/ Δ EFWHM/ mol iso/ year , the lowest in a bolometric 0 νββ decay experiment.

Published
2023

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

Author

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., and Zolotarova, A. S.

Subjects
Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

The CUPID-Mo experiment to search for 0$\nu\beta\beta$ decay in $^{100}$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$\nu\beta\beta$ decay experiment. CUPID-Mo was comprised of 20 enriched Li$_2$$^{100}$MoO$_4$ scintillating calorimeters, each with a mass of $\sim$ 0.2 kg, operated at $\sim$20 mK. We present here the final analysis with the full exposure of CUPID-Mo ($^{100}$Mo exposure of 1.47 kg$\times$yr) used to search for lepton number violation via 0$\nu\beta\beta$ 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 $^{100}$Mo 0$\nu\beta\beta$ decay half-life of $T^{0\nu}_{1/2} > 1.8 \times 10^{24}$ year (stat.+syst.) at 90% CI. Under the light Majorana neutrino exchange mechanism this corresponds to an effective Majorana neutrino mass of $\left < (0.28$--$0.49)$ eV, dependent upon the nuclear matrix element utilized.

Published
2022
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13. Final results on the $0νββ$ decay half-life limit of $^{100}$Mo from the CUPID-Mo experiment

Author

Augier, C, Barabash, AS, 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, FA, Jesus, M De, Marcillac, P de, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ Huang R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Loaiza, P, Ma, L, Makarov, EP, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Subjects
nucl-ex, physics.ins-det
Abstract

The CUPID-Mo experiment to search for 0$u\beta\beta$ decay in $^{100}$Mohas been recently completed after about 1.5 years of operation at LaboratoireSouterrain de Modane (France). It served as a demonstrator for CUPID, a nextgeneration 0$u\beta\beta$ decay experiment. CUPID-Mo was comprised of 20enriched Li$_2$$^{100}$MoO$_4$ scintillating calorimeters, each with a mass of$\sim$ 0.2 kg, operated at $\sim$20 mK. We present here the final analysis withthe full exposure of CUPID-Mo ($^{100}$Mo exposure of 1.47 kg$\times$yr) usedto search for lepton number violation via 0$u\beta\beta$ decay. We report onvarious analysis improvements since the previous result on a subset of data,reprocessing all data with these new techniques. We observe zero events in theregion of interest and set a new limit on the $^{100}$Mo 0$u\beta\beta$ decayhalf-life of $T^{0u}_{1/2} > 1.8 \times 10^{24}$ year (stat.+syst.) at 90%CI. Under the light Majorana neutrino exchange mechanism this corresponds to aneffective Majorana neutrino mass of $\left <(0.28$--$0.49)$ eV, dependent upon the nuclear matrix element utilized.

Published
2022

14. Final results on the 0νββ decay half-life limit of 100Mo from the CUPID-Mo experiment

Author

Augier, C, Barabash, AS, 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, FA, De Jesus, M, de Marcillac, P, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Loaiza, P, Ma, L, Makarov, EP, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Affordable and Clean Energy, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

The CUPID-Mo experiment to search for 0νββ decay in 100Mo 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 0νββ decay experiment. CUPID-Mo was comprised of 20 enriched Li 2100MoO 4 scintillating calorimeters, each with a mass of ∼ 0.2 kg, operated at ∼ 20 mK. We present here the final analysis with the full exposure of CUPID-Mo (100Mo exposure of 1.47 kg × year) used to search for lepton number violation via 0νββ 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 100Mo 0νββ decay half-life of T1/20ν> 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 〈 mββ〉

Published
2022

15. Phonon-mediated crystal detectors with metallic film coating capable of rejecting $\alpha$ and $\beta$ events induced by surface radioactivity

Author

Bandac, I. C., Barabash, A. S., Bergé, L., Bourgeois, Ch., Calvo-Mozota, J. M., Carniti, P., Chapellier, M., de Combarieu, M., Dafinei, I., Danevich, F. A., Dumoulin, L., Ferri, F., Giuliani, A., Gotti, C., Gras, Ph., Guerard, E., Ianni, A., Khalife, H., Konovalov, S. I., Loaiza, P., Madhukuttan, M., de Marcillac, P., Mariam, R., Marnieros, S., Marrache-Kikuchi, C. A., Martinez, M., Nones, C., Olivieri, E., Pessina, G., Poda, D. V., Redon, Th., Scarpaci, J. -A., Tretyak, V. I., Umatov, V. I., Zarytskyy, M. M., and Zolotarova, A. S.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

Phonon-mediated particle detectors based on single crystals and operated at millikelvin temperatures are used in rare-event experiments for neutrino physics and dark-matter searches. In general, these devices are not sensitive to the particle impact point, especially if the detection is mediated by thermal phonons. In this Letter, we demonstrate that excellent discrimination between interior and surface $\beta$ and $\alpha$ events can be achieved by coating a crystal face with a thin metallic film, either continuous or in the form of a grid. The coating affects the phonon energy down-conversion cascade that follows the particle interaction, leading to a modified signal shape for close-to-film events. An efficient identification of surface events was demonstrated with detectors based on a rectangular $20 \times 20 \times 10$ mm$^3$ Li$_2$MoO$_4$ crystal coated with a Pd normal-metal film (10~nm thick) and with Al-Pd superconductive bi-layers (100~nm-10~nm thick) on a $20 \times 20$ mm$^2$ face. Discrimination capabilities were tested with $^{238}$U sources emitting both $\alpha$ and $\beta$ particles. Surface events are identified for energy depositions down to millimeter-scale depths from the coated surface. With this technology, a substantial improvement of the background figure can be achieved in experiments searching for neutrinoless double-beta decay.

Published
2021
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16. New Limit for Neutrinoless Double-Beta Decay of $^{100}$Mo from the CUPID-Mo Experiment

Author

Armengaud, E., Augier, C., Barabash, A. S., Bellini, F., Benato, G., Benoît, A., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Bourgeois, Ch., Brudanin, V. B., Camus, P., Cardani, L., Casali, N., Cazes, A., Chapellier, M., Charlieux, F., Chiesa, D., de Combarieu, M., Dafinei, I., Danevich, F. A., De Jesus, M., Dixon, T., Dumoulin, L., Eitel, K., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Guerard, E., Helis, D. L., Huang, H. Z., Huang, R., Johnston, J., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Leder, A., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, P., Mariam, R., Marini, L., Marnieros, S., Misiak, D., Navick, X. -F., Nones, C., Norman, E. B., Novati, V., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pari, P., 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., Rusconi, C., Sanglard, V., Scarpaci, J. A., Schäffner, K., Schmidt, B., Shen, Y., Shlegel, V. N., Siebenborn, B., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., Welliver, B., Winslow, L., Xue, M., Yakushev, E., Zarytskyy, M., and Zolotarova, A. S.

Subjects
Nuclear Experiment
Abstract

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale cryogenic $0\nu\beta\beta$ experiment. It consists of a 4.2 kg array of 20 enriched Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers to search for the lepton number violating process of $0\nu\beta\beta$ decay in $^{100}$Mo. With more than one year of operation (2.16 kg$\times$yr of physics data), no event in the region of interest and hence no evidence for $0\nu\beta\beta$ is observed. We report a new limit on the half-life of $0\nu\beta\beta$ decay in $^{100}$Mo of $T_{1/2} > 1.5 \times 10^{24}\,$yr at 90 % C.I. The limit corresponds to an effective Majorana neutrino mass $\langle m_{\beta\beta} \rangle$ $<$ (0.31--0.54)$\,$eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation.

Published
2020
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17. Pulse Shape Discrimination in CUPID-Mo using Principal Component Analysis

Author

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

Subjects
Physics - Data Analysis, Statistics and Probability, Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay ($0\nu\beta\beta$) of $^{100}$Mo. It uses 20 scintillating $^{100}$Mo-enriched Li$_2$MoO$_4$ bolometers instrumented with Ge light detectors to perform active suppression of $\alpha$ backgrounds, drastically reducing the expected background in the $0\nu\beta\beta$ signal region. As a result, pileup events and small detector instabilities that mimic normal signals become non-negligible potential backgrounds. These types of events can in principle be eliminated based on their signal shapes, which are different from those of regular bolometric pulses. We show that a purely data-driven principal component analysis based approach is able to filter out these anomalous events, without the aid of detector response simulations.

Published
2020
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18. New Limit for Neutrinoless Double-Beta Decay of Mo100 from the CUPID-Mo Experiment

Author

Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Benato, G, Benoît, A, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Bourgeois, Ch, Brudanin, VB, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, Chiesa, D, de Combarieu, M, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Helis, DL, Huang, HZ, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Leder, A, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Misiak, D, Navick, X-F, Nones, C, Norman, EB, Novati, V, Olivieri, E, Ouellet, JL, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Rusconi, C, Sanglard, V, Scarpaci, JA, Schäffner, K, Schmidt, B, Shen, Y, Shlegel, VN, Siebenborn, B, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CUPID-Mo Collaboration, nucl-ex, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale bolometric 0νββ experiment. It consists of a 4.2 kg array of 20 enriched Li_{2}^{100}MoO_{4} scintillating bolometers to search for the lepton-number-violating process of 0νββ decay in ^{100}Mo. With more than one year of operation (^{100}Mo exposure of 1.17  kg×yr for physics data), no event in the region of interest and, hence, no evidence for 0νββ is observed. We report a new limit on the half-life of 0νββ decay in ^{100}Mo of T_{1/2}>1.5×10^{24}  yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass ⟨m_{ββ}⟩

Published
2021

19. New Limit for Neutrinoless Double-Beta Decay of ^{100}Mo from the CUPID-Mo Experiment.

Author

Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Benato, G, Benoît, A, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Bourgeois, Ch, Brudanin, VB, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, Chiesa, D, de Combarieu, M, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Helis, DL, Huang, HZ, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Leder, A, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Misiak, D, Navick, X-F, Nones, C, Norman, EB, Novati, V, Olivieri, E, Ouellet, JL, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Rusconi, C, Sanglard, V, Scarpaci, JA, Schäffner, K, Schmidt, B, Shen, Y, Shlegel, VN, Siebenborn, B, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, Zolotarova, AS, and CUPID-Mo Collaboration

Subjects
CUPID-Mo Collaboration, nucl-ex, General Physics, Mathematical Sciences, Physical Sciences, Engineering
Abstract

The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale bolometric 0νββ experiment. It consists of a 4.2 kg array of 20 enriched Li_{2}^{100}MoO_{4} scintillating bolometers to search for the lepton-number-violating process of 0νββ decay in ^{100}Mo. With more than one year of operation (^{100}Mo exposure of 1.17  kg×yr for physics data), no event in the region of interest and, hence, no evidence for 0νββ is observed. We report a new limit on the half-life of 0νββ decay in ^{100}Mo of T_{1/2}>1.5×10^{24}  yr at 90% C.I. The limit corresponds to an effective Majorana neutrino mass ⟨m_{ββ}⟩

Published
2021

20. Pulse shape discrimination in CUPID-Mo using principal component analysis

Author

Huang, R, Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Benato, G, Benoît, A, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Bourgeois, Ch, Brudanin, VB, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, de Combarieu, M, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Helis, DL, Huang, HZ, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Misiak, D, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Previtali, E, Redon, Th, Rozov, S, Rusconi, C, Sanglard, V, Scarpaci, JA, Schäffner, K, Schmidt, B, Shen, Y, Shlegel, VN, Siebenborn, B, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Weber, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, MM, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, Analysis and statistical methods, Calorimeters, Data processing methods, Double-beta decay detectors, physics.data-an, nucl-ex, physics.ins-det, Engineering, Nuclear & Particles Physics, Physical sciences
Abstract

CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay (0νββ) of 100Mo. It uses 20 scintillating 100Mo-enriched Li2MoO4 bolometers instrumented with Ge light detectors to perform active suppression of α backgrounds, drastically reducing the expected background in the 0νββ signal region. As a result, pileup events and small detector instabilities that mimic normal signals become non-negligible potential backgrounds. These types of events can in principle be eliminated based on their signal shapes, which are different from those of regular bolometric pulses. We show that a purely data-driven principal component analysis based approach is able to filter out these anomalous events, without the aid of detector response simulations.

Published
2021

21. Precise measurement of $2\nu\beta\beta$ decay of $^{100}$Mo with the CUPID-Mo detection technology

Author

Armengaud, E., Augier, C., Barabash, A. S., Bellini, F., Benato, G., Benoît, A., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Bourgeois, Ch., Briere, M., Brudanin, V., Camus, P., Cardani, L., Casali, N., Cazes, A., Chapellier, M., Charlieux, F., de Combarieu, M., Dafinei, I., Danevich, F. A., De Jesus, M., Dumoulin, L., Eitel, K., Elkhoury, E., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Guerard, E., Helis, D. L., Huang, H. Z., Huang, R., Johnston, J., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Leder, A., Kotila, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, P., Marini, L., Marnieros, S., Misiak, D., Navick, X-F., Nones, C., Novati, V., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pari, P., Pattavina, L., Paul, B., Pavan, M., Peng, H., Pessina, G., Pirro, S., Poda, D. V., Polischuk, O. G., Previtali, E., Redon, Th., Rozov, S., Rusconi, C., Sanglard, V., Schäffner, K., Schmidt, B., Shen, Y., Shlegel, V. N., Siebenborn, B., Singh, V., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., Weber, M., Welliver, B., Winslow, L., Xue, M., Yakushev, E., and Zolotarova, A. S.

Subjects
Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

We report the measurement of the two-neutrino double-beta ($2\nu\beta\beta$) decay of $^{100}$Mo to the ground state of $^{100}$Ru using lithium molybdate (\crystal) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory. From a total exposure of $42.235$ kg$\times$d, the half-life of $^{100}$Mo is determined to be $T_{1/2}^{2\nu}=[7.12^{+0.18}_{-0.14}\,\mathrm{(stat.)}\pm0.10\,\mathrm{(syst.)}]\times10^{18}$ years. This is the most accurate determination of the $2\nu\beta\beta$ half-life of $^{100}$Mo to date. We also confirm, with the statistical significance of $>3\sigma$, that the single-state dominance model of the $2\nu\beta\beta$ decay of $^{100}$Mo is favored over the high-state dominance model., Comment: 11 pages, 6 figures, 4 tables

Published
2019
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22. First data from the CUPID-Mo neutrinoless double beta decay experiment

Author

Schmidt, B., Armengaud, E., Augier, C., Barabash, A. S., Bellini, F., Benato, G., Benoît, A., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Bourgeois, Ch., Briere, M., Brudanin, V. B., Camus, P., Cardani, L., Casali, N., Cazes, A., Chapellier, M., Charlieux, F., de Combarieu, M., Dafinei, I., Danevich, F. A., De Jesus, M., Dumoulin, L., Eitel, K., Elkhoury, E., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Guerard, E., Helis, D. L., Huang, H. Z., Huang, R., Johnston, J., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Leder, A., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, P., Marini, L., Marnieros, S., Misiak, D., Navick, X. -F., Nones, C., Novati, V., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pari, P., Pattavina, L., Paul, B., Pavan, M., Peng, H., Pessina, G., Pirro, S., Poda, D. V., Polischuk, O. G., Previtali, E., Redon, Th., Rozov, S., Rusconi, C., Sanglard, V., Schäffner, K., Shen, Y., Shlegel, V. N., Siebenborn, B., Singh, V., Sorbino, S., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., Weber, M., Welliver, B., Winslow, L., Xue, M., Yakushev, E., and Zolotarova, A. S.

Subjects
High Energy Physics - Experiment, Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

The CUPID-Mo experiment is searching for neutrinoless double beta decay in $^{100}$Mo, evaluating the technology of cryogenic scintillating Li$_{2}^{100}$MoO$_4$ detectors for CUPID (CUORE Upgrade with Particle ID). CUPID-Mo detectors feature background suppression using a dual-readout scheme with Li$_{2}$MoO$_4$ crystals complemented by Ge bolometers for light detection. The detection of both heat and scintillation light signals allows the efficient discrimination of $\alpha$ from $\gamma$&$\beta$ events. In this proceedings, we discuss results from the first 2 months of data taking in spring 2019. In addition to an excellent bolometric performance of 6.7$\,$keV (FWHM) at 2615$\,$keV and an $\alpha$ separation of better than 99.9\% for all detectors, we report on bulk radiopurity for Th and U. Finally, we interpret the accumulated physics data in terms of a limit of $T_{1/2}^{0\nu}\,> 3\times10^{23}\,$yr for $^{100}$Mo and discuss the sensitivity of CUPID-Mo until the expected end of physics data taking in early 2020., Comment: Proceedings for TAUP 2019, submitted to IOP Journal of Physics: Conference Series

Published
2019
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23. The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects

Author

Armengaud, E., Augier, C., Barabash, A. S., Bellini, F., Benato, G., Benoît, A., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Bourgeois, Ch., Briere, M., Brudanin, V. B., Camus, P., Cardani, L., Casali, N., Cazes, A., Chapellier, M., Charlieux, F., de Combarieu, M., Dafinei, I., Danevich, F. A., De Jesus, M., Dumoulin, L., Eitel, K., Elkhoury, E., Ferri, F., Fujikawa, B. K., Gascon, J., Gironi, L., Giuliani, A., Grigorieva, V. D., Gros, M., Guerard, E., Helis, D. L., Huang, H. Z., Huang, R., Johnston, J., Juillard, A., Khalife, H., Kleifges, M., Kobychev, V. V., Kolomensky, Yu. G., Konovalov, S. I., Leder, A., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, P., Marini, L., Marnieros, S., Navick, X. -F., Nones, C., Novati, V., Olivieri, E., Ouellet, J. L., Pagnanini, L., Pari, P., Pattavina, L., Paul, B., Pavan, M., Peng, H., Pessina, G., Pirro, S., Poda, D. V., Polischuk, O. G., Previtali, E., Redon, Th., Rozov, S., Rusconi, C., Sanglard, V., Schäffner, K., Schmidt, B., Shen, Y., Shlegel, V. N., Siebenborn, B., Singh, V., Sorbino, S., Tomei, C., Tretyak, V. I., Umatov, V. I., Vagneron, L., Velázquez, M., Weber, M., Welliver, B., Winslow, L., Xue, M., Yakushev, E., and Zolotarova, A. S.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

CUPID-Mo is a bolometric experiment to search for neutrinoless double-beta decay ($0\nu\beta\beta$) of $^{100}$Mo. In this article, we detail the CUPID-Mo detector concept, assembly, installation in the underground laboratory in Modane in 2018, and provide results from the first datasets. The demonstrator consists of an array of 20 scintillating bolometers comprised of $^{100}$Mo-enriched 0.2 kg Li$_2$MoO$_4$ crystals. The detectors are complemented by 20 thin cryogenic Ge bolometers acting as light detectors to distinguish $\alpha$ from $\gamma$/$\beta$ events by the detection of both heat and scintillation light signals. We observe good detector uniformity, facilitating the operation of a large detector array as well as excellent energy resolution of 5.3 keV (6.5 keV) FWHM at 2615 keV, in calibration (physics) data. Based on the observed energy resolutions and light yields a separation of $\alpha$ particles at much better than 99.9\% with equally high acceptance for $\gamma$/$\beta$ events is expected for events in the region of interest for $^{100}$Mo $0\nu\beta\beta$. We present limits on the crystals' radiopurity ($\leq$3 $\mu$Bq/kg of $^{226}$Ra and $\leq$2 $\mu$Bq/kg of $^{232}$Th). Based on these initial results we also discuss a sensitivity study for the science reach of the CUPID-Mo experiment, in particular, the ability to set the most stringent half-life limit on the $^{100}$Mo $0\nu\beta\beta$ decay after half a year of livetime. The achieved results show that CUPID-Mo is a successful demonstrator of the technology - developed in the framework of the LUMINEU project - selected for the CUPID experiment, a proposed follow-up of CUORE, the currently running first tonne-scale cryogenic $0\nu\beta\beta$ experiment., Comment: 15 pages, 18 figures, 3 tables; to be submitted to EPJC

Published
2019
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24. The CROSS Experiment: Rejecting Surface Events by PSD Induced by Superconducting Films

Author

Khalife, H., Bergé, L., Chapellier, M., Dumoulin, L., Giuliani, A., Loaiza, P., de Marcillac, P., Marnieros, S., Marrache-Kikuchi, C. A., Nones, C., Novati, V., Olivieri, E., Oriol, Ch., Poda, D. V., Redon, Th., and Zolotarova, A. S.

Subjects
Physics - Instrumentation and Detectors
Abstract

Neutrinoless double beta ($0\nu\beta\beta$) decay is a hypothetical rare nuclear transition ($T_{1/2}>10^{26}$ y). Its observation would provide an important insight about the nature of neutrinos (Dirac or Majorana particle) demonstrating that the lepton number is not conserved. This decay can be investigated with bolometers embedding the double beta decay isotope ($^{76}$Ge, $^{82}$Se, $^{100}$Mo, $^{116}$Cd, $^{130}$Te...), which perform as low temperature calorimeters (10 mK) detecting particle interactions via a small temperature rise read out by a dedicated thermometer. CROSS (Cryogenic Rare-event Observatory with Surface Sensitivity) aims at the development of bolometric detectors (Li$_{2}$MoO$_{4}$ and TeO$_{2}$) capable of discriminating surface $\alpha$ and $\beta$ interactions by exploiting superconducting properties of Al film deposited on the crystal surface. We report in this paper the results of tests on prototypes performed at CSNSM (Orsay, France) that showed the capability of a-few-$\mu$m-thick superconducting Al film deposited on crystal surface to discriminate surface $\alpha$ from bulk events, thus providing the detector with the required surface sensitivity capability. The CROSS technology would further improve the background suppression and simplify the detector construction with a view to future competitive double beta decay searches., Comment: Accepted for publication in J. Low Temp. Phys

Published
2019
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25. The $0\nu2\beta$-decay CROSS experiment: preliminary results and prospects

Author

Bandac, I. C., Barabash, A. S., Bergé, L., Brière, M., Bourgeois, Ch., Carniti, P., Chapellier, M., de Combarieu, M., Dafinei, I., Danevich, F. A., Dosme, N., Doullet, D., Dumoulin, L., Ferri, F., Giuliani, A., Gotti, C., Gras, Ph., Guerard, E., Ianni, A., Khalife, H., Konovalov, S. I., Legay, E., Loaiza, P., de Marcillac, P., Marnieros, S., Marrache-Kikuchi, C. A., Nones, C., Novati, V., Olivieri, E., Oriol, Ch., Pessina, G., Poda, D. V., Redon, Th., Tretyak, V. I., Umatov, V. I., Zarytsky, M. M., and Zolotarova, A. S.

Subjects
Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

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 $\alpha$ 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 $\sim 1$ 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 $\sim 3\times 10^{25}$ 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.

Published
2019
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26. Precise measurement of 2νββ decay of 100Mo with the CUPID-Mo detection technology

Author

Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Benato, G, Benoît, A, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Bourgeois, Ch, Briere, M, Brudanin, V, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, de Combarieu, M, Dafinei, I, Danevich, FA, De Jesus, M, Dumoulin, L, Eitel, K, Elkhoury, E, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Helis, DL, Huang, HZ, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Leder, A, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Marini, L, Marnieros, S, Misiak, D, Navick, X-F, Nones, C, Novati, V, Olivieri, E, Ouellet, JL, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Previtali, E, Redon, Th, Rozov, S, Rusconi, C, Sanglard, V, Schäffner, K, Schmidt, B, Shen, Y, Shlegel, VN, Siebenborn, B, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Weber, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, nucl-ex, physics.ins-det, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

We report the measurement of the two-neutrino double-beta (2 νββ) decay of 100Mo to the ground state of 100Ru using lithium molybdate (Li2100MoO4) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory (France). From a total exposure of 42.235 kg× day, the half-life of 100Mo is determined to be T1/22ν=[7.12-0.14+0.18(stat.)±0.10(syst.)]×1018 years. This is the most accurate determination of the 2 νββ half-life of 100Mo to date.

Published
2020

27. The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects

Author

Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Benato, G, Benoît, A, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Bourgeois, Ch, Briere, M, Brudanin, VB, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, de Combarieu, M, Dafinei, I, Danevich, FA, De Jesus, M, Dumoulin, L, Eitel, K, Elkhoury, E, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Helis, DL, Huang, HZ, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Leder, A, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Marini, L, Marnieros, S, Misiak, D, Navick, X-F, Nones, C, Novati, V, Olivieri, E, Ouellet, JL, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Previtali, E, Redon, Th, Rozov, S, Rusconi, C, Sanglard, V, Schäffner, K, Schmidt, B, Shen, Y, Shlegel, VN, Siebenborn, B, Singh, V, Sorbino, S, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Weber, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, and Zolotarova, AS

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, physics.ins-det, hep-ex, nucl-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

CUPID-Mo is a bolometric experiment to search for neutrinoless double-beta decay (0 νββ) of 100Mo. In this article, we detail the CUPID-Mo detector concept, assembly and installation in the Modane underground laboratory, providing results from the first datasets. The CUPID-Mo detector consists of an array of 20 100Mo -enriched 0.2 kg Li 2MoO 4 crystals operated as scintillating bolometers at ∼20mK. The Li 2MoO 4 crystals are complemented by 20 thin Ge optical bolometers to reject α events by the simultaneous detection of heat and scintillation light. We observe a good detector uniformity and an excellent energy resolution of 5.3 keV (6.5 keV) FWHM at 2615 keV, in calibration (physics) data. Light collection ensures the rejection of α particles at a level much higher than 99.9% – with equally high acceptance for γ/β events – in the region of interest for 100Mo 0 νββ. We present limits on the crystals’ radiopurity: ≤3μBq/kg of 226Ra and ≤2μBq/kg of 232Th. We discuss the science reach of CUPID-Mo, which can set the most stringent half-life limit on the 100Mo 0 νββ decay in half-a-year’s livetime. The achieved results show that CUPID-Mo is a successful demonstrator of the technology developed by the LUMINEU project and subsequently selected for the CUPID experiment, a proposed follow-up of CUORE, the currently running first tonne-scale bolometric 0 νββ experiment.

Published
2020

28. This title is unavailable for guests, please login to see more information.

Author

Augier, C, Augier, C, Barabash, AS, Bellini, F, Benato, G, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Cardani, L, Casali, N, Cazes, A, Celi, E, Chapellier, M, Chiesa, D, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Navick, XF, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Šimkovic, F, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Ware, B, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, Zolotarova, AS, Augier, C, Augier, C, Barabash, AS, Bellini, F, Benato, G, Beretta, M, Bergé, L, Billard, J, Borovlev, Yu A, Cardani, L, Casali, N, Cazes, A, Celi, E, Chapellier, M, Chiesa, D, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Navick, XF, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Šimkovic, F, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Ware, B, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Published
2024

30. Test of 116CdWO4 and Li2MoO4 scintillating bolometers in the CROSS underground facility with upgraded detector suspension

Author

Ahmine, A., primary, Bandac, I.C., additional, Barabash, A.S., additional, Berest, V., additional, Bergé, L., additional, Calvo-Mozota, J.M., additional, Carniti, P., additional, Chapellier, M., additional, Dafinei, I., additional, Danevich, F.A., additional, Dixon, T., additional, Dumoulin, L., additional, Ferri, F., additional, Giuliani, A., additional, Gotti, C., additional, Gras, P., additional, Helis, D.L., additional, Ianni, A., additional, Imbert, L., additional, Khalife, H., additional, Kobychev, V.V., additional, Konovalov, S.I., additional, Loaiza, P., additional, de Marcillac, P., additional, Marnieros, S., additional, Marrache-Kikuchi, C.A., additional, Martinez, M., additional, Nones, C., additional, Olivieri, E., additional, Ortiz de Solórzano, A., additional, Peinaud, Y., additional, Pessina, G., additional, Poda, D.V., additional, Redon, Th., additional, Rosier, Ph., additional, Scarpaci, J.A., additional, Tretyak, V.I., additional, Umatov, V.I., additional, Velazquez, M., additional, Zarytskyy, M.M., additional, and Zolotarova, A., additional

Published
2023
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31. The background model of the CUPID-Mo $$0\nu \beta \beta $$ experiment

Author

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

Published
2023
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Augier, C, Billard, J, Cazes, A, De Jesus, M, Gascon, J, Juillard, A, Sanglard, V, Vagneron, L, Barabash, A, Bellini, F, Cardani, L, Casali, N, Dafinei, I, Polischuk, O, Tomei, C, Benato, G, Celi, E, Helis, D, Marini, L, Pagnanini, L, Pattavina, L, Pirro, S, Tretyak, V, Beretta, M, Huang, R, Kolomensky, Y, Norman, E, Singh, V, Welliver, B, Berge, L, Chapellier, M, Dixon, T, Dumoulin, L, Giuliani, A, Imbert, L, Khalife, H, Loaiza, P, de Marcillac, P, Mariam, R, Marnieros, S, Olivieri, E, Poda, D, Redon, T, Scarpaci, J, Zolotarova, A, Borovlev, Y, Grigorieva, V, Makarov, E, Shlegel, V, Chiesa, D, Gironi, L, Pavan, M, Previtali, E, Pessina, G, Pozzi, S, Danevich, F, Kobychev, V, Zarytskyy, M, Ferri, F, Gros, M, Navick, X, Nones, C, Paul, B, Schmidt, B, Eitel, K, Fujikawa, B, Huang, H, Ma, L, Shen, Y, Johnston, J, Ouellet, J, Winslow, L, Kleifges, M, Konovalov, S, Umatov, V, Kotila, J, Peng, H, Xue, M, Rojas, A, Rozov, S, Yakushev, E, Simkovic, F, Velazquez, M, Ware, B, Augier C., Billard J., Cazes A., De Jesus M., Gascon J., Juillard A., Sanglard V., Vagneron L., Barabash A. S., Bellini F., Cardani L., Casali N., Dafinei I., Polischuk O. G., Tomei C., Benato G., Celi E., Helis D. L., Marini L., Pagnanini L., Pattavina L., Pirro S., Tretyak V. I., Beretta M., Huang R., Kolomensky Yu. G., Norman E. B., Singh V., Welliver B., Berge L., Chapellier M., Dixon T., Dumoulin L., Giuliani A., Imbert L., Khalife H., Loaiza P., de Marcillac P., Mariam R., Marnieros S., Olivieri E., Poda D. V., Redon Th., Scarpaci J. A., Zolotarova A. S., Borovlev Yu. A., Grigorieva V. D., Makarov E. P., Shlegel V. N., Chiesa D., Gironi L., Pavan M., Previtali E., Pessina G., Pozzi S., Danevich F. A., Kobychev V. V., Zarytskyy M., Ferri F., Gros M., Navick X. -F., Nones C., Paul B., Schmidt B., Eitel K., Fujikawa B. K., Huang H. Z., Ma L., Shen Y., Johnston J., Ouellet J. L., Winslow L., Kleifges M., Konovalov S. I., Umatov V. I., Kotila J., Peng H., Xue M., Rojas A., Rozov S., Yakushev E., Simkovic F., Velazquez M., Ware B., Augier, C, Billard, J, Cazes, A, De Jesus, M, Gascon, J, Juillard, A, Sanglard, V, Vagneron, L, Barabash, A, Bellini, F, Cardani, L, Casali, N, Dafinei, I, Polischuk, O, Tomei, C, Benato, G, Celi, E, Helis, D, Marini, L, Pagnanini, L, Pattavina, L, Pirro, S, Tretyak, V, Beretta, M, Huang, R, Kolomensky, Y, Norman, E, Singh, V, Welliver, B, Berge, L, Chapellier, M, Dixon, T, Dumoulin, L, Giuliani, A, Imbert, L, Khalife, H, Loaiza, P, de Marcillac, P, Mariam, R, Marnieros, S, Olivieri, E, Poda, D, Redon, T, Scarpaci, J, Zolotarova, A, Borovlev, Y, Grigorieva, V, Makarov, E, Shlegel, V, Chiesa, D, Gironi, L, Pavan, M, Previtali, E, Pessina, G, Pozzi, S, Danevich, F, Kobychev, V, Zarytskyy, M, Ferri, F, Gros, M, Navick, X, Nones, C, Paul, B, Schmidt, B, Eitel, K, Fujikawa, B, Huang, H, Ma, L, Shen, Y, Johnston, J, Ouellet, J, Winslow, L, Kleifges, M, Konovalov, S, Umatov, V, Kotila, J, Peng, H, Xue, M, Rojas, A, Rozov, S, Yakushev, E, Simkovic, F, Velazquez, M, Ware, B, Augier C., Billard J., Cazes A., De Jesus M., Gascon J., Juillard A., Sanglard V., Vagneron L., Barabash A. S., Bellini F., Cardani L., Casali N., Dafinei I., Polischuk O. G., Tomei C., Benato G., Celi E., Helis D. L., Marini L., Pagnanini L., Pattavina L., Pirro S., Tretyak V. I., Beretta M., Huang R., Kolomensky Yu. G., Norman E. B., Singh V., Welliver B., Berge L., Chapellier M., Dixon T., Dumoulin L., Giuliani A., Imbert L., Khalife H., Loaiza P., de Marcillac P., Mariam R., Marnieros S., Olivieri E., Poda D. V., Redon Th., Scarpaci J. A., Zolotarova A. S., Borovlev Yu. A., Grigorieva V. D., Makarov E. P., Shlegel V. N., Chiesa D., Gironi L., Pavan M., Previtali E., Pessina G., Pozzi S., Danevich F. A., Kobychev V. V., Zarytskyy M., Ferri F., Gros M., Navick X. -F., Nones C., Paul B., Schmidt B., Eitel K., Fujikawa B. K., Huang H. Z., Ma L., Shen Y., Johnston J., Ouellet J. L., Winslow L., Kleifges M., Konovalov S. I., Umatov V. I., Kotila J., Peng H., Xue M., Rojas A., Rozov S., Yakushev E., Simkovic F., Velazquez M., and Ware B.

Abstract

Neutrinoless double beta decay (Formula Presented) is a yet unobserved nuclear process that would demonstrate Lepton number violation, a clear evidence of beyond standard model physics. The process two neutrino double beta decay (Formula Presented) is allowed by the standard model and has been measured in numerous experiments. In this Letter, we report a measurement of Formula Presented decay half-life of Formula Presented to the ground state of Formula Presented of Formula Presented by the CUPID-Mo experiment. With a relative precision of Formula Presented this is the most precise measurement to date of a Formula Presented decay rate in Formula Presented. In addition, we constrain higher-order corrections to the spectral shape, which provides complementary nuclear structure information. We report a novel measurement of the shape factor Formula Presented based on a constraint on the ratio of higher-order terms from theory, which can be reliably calculated. This is compared to theoretical predictions for different nuclear models. We also extract the first value for the effective axial vector coupling constant obtained from a spectral shape study of Formula Presented decay.

Published
2023

33. Test of 116CdWO4 and Li2MoO4 scintillating bolometers in the CROSS underground facility with upgraded detector suspension

Author

Ahmine, A, Bandac, I, Barabash, A, Berest, V, Bergé, L, Calvo-Mozota, J, Carniti, P, Chapellier, M, Dafinei, I, Danevich, F, Dixon, T, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, P, Helis, D, Ianni, A, Imbert, L, Khalife, H, Kobychev, V, Konovalov, S, Loaiza, P, de Marcillac, P, Marnieros, S, Marrache-Kikuchi, C, Martinez, M, Nones, C, Olivieri, E, Ortiz de Solórzano, A, Peinaud, Y, Pessina, G, Poda, D, Redon, T, Rosier, P, Scarpaci, J, Tretyak, V, Umatov, V, Velazquez, M, Zarytskyy, M, Zolotarova, A, Ahmine, A., Bandac, I. C., Barabash, A. S., Berest, V., Bergé, L., Calvo-Mozota, J. M., Carniti, P., Chapellier, M., Dafinei, I., Danevich, F. A., Dixon, T., Dumoulin, L., Ferri, F., Giuliani, A., Gotti, C., Gras, P., Helis, D. L., Ianni, A., Imbert, L., Khalife, H., Kobychev, V. V., Konovalov, S. I., Loaiza, P., de Marcillac, P., Marnieros, S., Marrache-Kikuchi, C. A., Martinez, M., Nones, C., Olivieri, E., Ortiz de Solórzano, A., Peinaud, Y., Pessina, G., Poda, D. V., Redon, Th., Rosier, Ph., Scarpaci, J. A., Tretyak, V. I., Umatov, V. I., Velazquez, M., Zarytskyy, M. M., Zolotarova, A., Ahmine, A, Bandac, I, Barabash, A, Berest, V, Bergé, L, Calvo-Mozota, J, Carniti, P, Chapellier, M, Dafinei, I, Danevich, F, Dixon, T, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, P, Helis, D, Ianni, A, Imbert, L, Khalife, H, Kobychev, V, Konovalov, S, Loaiza, P, de Marcillac, P, Marnieros, S, Marrache-Kikuchi, C, Martinez, M, Nones, C, Olivieri, E, Ortiz de Solórzano, A, Peinaud, Y, Pessina, G, Poda, D, Redon, T, Rosier, P, Scarpaci, J, Tretyak, V, Umatov, V, Velazquez, M, Zarytskyy, M, Zolotarova, A, Ahmine, A., Bandac, I. C., Barabash, A. S., Berest, V., Bergé, L., Calvo-Mozota, J. M., Carniti, P., Chapellier, M., Dafinei, I., Danevich, F. A., Dixon, T., Dumoulin, L., Ferri, F., Giuliani, A., Gotti, C., Gras, P., Helis, D. L., Ianni, A., Imbert, L., Khalife, H., Kobychev, V. V., Konovalov, S. I., Loaiza, P., de Marcillac, P., Marnieros, S., Marrache-Kikuchi, C. A., Martinez, M., Nones, C., Olivieri, E., Ortiz de Solórzano, A., Peinaud, Y., Pessina, G., Poda, D. V., Redon, Th., Rosier, Ph., Scarpaci, J. A., Tretyak, V. I., Umatov, V. I., Velazquez, M., Zarytskyy, M. M., and Zolotarova, A.

Published
2023

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Author

Augier, C, Augier, C, Barabash, AS, 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, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, Zolotarova, AS, Augier, C, Augier, C, Barabash, AS, 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, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Published
2023

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

Published
2023

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

Published
2023

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Author

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

Published
2023

38. Enhanced light signal for the suppression of pile-up events in Mo-based bolometers for the 0$$\nu \beta \beta $$ decay search.

Author

Ahmine, A., primary, Armatol, A., additional, Bandac, I., additional, Bergé, L., additional, Calvo-Mozota, J. M., additional, Carniti, P., additional, Chapellier, M., additional, Dixon, T., additional, Dumoulin, L., additional, Giuliani, A., additional, Gras, Ph., additional, Ferri, F., additional, Imbert, L., additional, Khalife, H., additional, Loaiza, P., additional, de Marcillac, P., additional, Marnieros, S., additional, Marrache-Kikuchi, C. A., additional, Nones, C., additional, Olivieri, E., additional, de Solórzano, A. Ortiz, additional, Pessina, G., additional, Poda, D. V., additional, Redon, Th., additional, Scarpaci, J. A., additional, Velázquez, M., additional, and Zolotarova, A., additional

Published
2023
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39. New measurement of double-β decays of Mo100 to excited states of Ru100 with the CUPID-Mo experiment

Author

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., 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., Kotila, J., Loaiza, P., Ma, L., Makarov, E. P., de Marcillac, 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., and Zolotarova, A. S.

Subjects
Particle and Plasma Physics, Molecular, Nuclear, 100 Mo double-β decays, Atomic, Nuclear & Particles Physics
Abstract

The CUPID-Mo experiment, located at the Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20Li2Mo100O4 (LMO) calorimeters, each equipped with a Ge light detector for particle identification. In this work, we present the result of a search for two-neutrino and neutrinoless double-β decays of Mo100 to the first 0+ and 2+ excited states of Ru100 using the full CUPID-Mo exposure (2.71kgyr of LMO). We measure the half-life of 2νββ decay to the 01+ state as T1/22ν→01+=(7.5±0.8(stat.)-0.3+0.4(syst.))×1020yr. The bolometric technique enables measurement of the electron energies as well as the γ rays from nuclear deexcitation and this allows us to set new limits on the two-neutrino decay to the 21+ state of T1/22ν→21+>4.4×1021yr(90% c.i.) and on the neutrinoless modes of T1/20ν→21+>2.1×1023yr(90% c.i.), T1/20ν→01+>1.2×1023yr(90% c.i.). Information on the electrons' spectral shape is obtained, which allows us to make the first comparison of the single and higher state dominance 2νββ decay models for the 01+ excited state of Ru100.

Published
2023

40. Enhanced light signal as a powerful method to mitigate random coincidence background in double beta decay search with Mo-containing scintillating bolometers

Author

Armatol, A, Bandac, I, Bergé, L, Calvo-Mozota, J.M, Carniti, P, Chapellier, M, Dixon, T, Dumoulin, L, Giuliani, A, Gras, Ph, Ferri, F, Imbert, L, Khalife, H, Loaiza, P, de Marcillac, P, Marnieros, S, Marrache-Kikuchi, C.A, Nones, C, Olivieri, E, de Solórzano, A. Ortiz, Pessina, G, Poda, D.V, Redon, Th, Scarpaci, J.A, Velázquez, M, Zolotarova, A, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
bolometer, background, pile-up, efficiency, shape analysis, double-beta decay, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], time resolution, scintillation counter, performance, crystal
Abstract

International audience; Random coincidences of events could be one of the main sources of background in the search for neutrino-less double-beta decay of $^{100}$Mo with macro-bolometers, due to their modest time resolution. Scintillating bolometers as those based on Li$_2$MoO$_4$ crystals and employed in the CROSS and CUPID experiments can eventually exploit the coincident fast signal detected in a light detector to reduce this background. However, the scintillation provides a modest signal-to-noise ratio, making difficult a pile-up pulse-shape recognition and rejection at timescales shorter than a few ms. Neganov-Trofimov-Luke assisted light detectors (NTL-LDs) offer the possibility to effectively increase the signal-to-noise ratio, preserving a fast time-response, and enhance the capability of pile-up rejection via pulse shape analysis. In this article we present: a) an experimental work performed with a Li$_2$MoO$_4$ scintillating bolometer, studied in the framework of the CROSS experiment, and utilizing a NTL-LD; b) a simulation method to reproduce, synthetically, randomly coincident two-neutrino double-beta decay events; c) a new analysis method based on a pulse-shape discrimination algorithm capable of providing high pile-up rejection efficiencies. We finally show how the NTL-LDs offer a balanced solution between performance and complexity to reach background index $\sim$$10^{-4}$ counts/keV/kg/year with 280~g Li$_2$MoO$_4$ ($^{100}$Mo enriched) bolometers at 3034 keV, the Q-value of the double-beta decay, and target the goal of a next generation experiment like CUPID.

Published
2023
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41. Li$_2$$^{100\textrm{depl}}$MoO$_4$ Scintillating Bolometers for Rare-Event Search Experiments

Author

Bandac, I.C, Barabash, A.S, Bergé, L, Borovlev, Yu.A, Calvo-Mozota, J.M, Carniti, P, Chapellier, M, Dafinei, I, Danevich, F.A, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, Ph, Grigorieva, V.D, Ianni, A, Khalife, H, Kobychev, V.V, Konovalov, S.I, Loaiza, P, Madhukuttan, M, Makarov, E.P, de Marcillac, P, Marnieros, S, Marrache-Kikuchi, C.A, Martinez, M, Nones, C, Olivieri, E, de Solórzano, A. Ortiz, Pessina, G, Poda, D.V, Redon, Th, Scarpaci, J.A, Shlegel, V.N, Tretyak, V.I, Umatov, V.I, Zarytskyy, M.M, Zolotarova, A, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
photon, emission, Physics - Instrumentation and Detectors, scintillation counter, crystal, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], molybdenum, bolometer, lithium, cryogenics, photon, scintillation counter, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), Nuclear Experiment, performance
Abstract

We report on the development of scintillating bolometers based on lithium molybdate crystals containing molybdenum depleted in the double-$\beta$ active isotope $^{100}$Mo (Li$_2$$^{100\textrm{depl}}$MoO$_4$). We used two Li$_2$$^{100\textrm{depl}}$MoO$_4$ cubic samples, 45 mm side and 0.28 kg each, produced following purification and crystallization protocols developed for double-$\beta$ search experiments with $^{100}$Mo-enriched Li$_2$MoO$_4$ crystals. Bolometric Ge detectors were utilized to register scintillation photons emitted by the Li$_2$$^{100\textrm{depl}}$MoO$_4$ crystal scintillators. The measurements were performed in the CROSS cryogenic set-up at the Canfranc underground laboratory (Spain). We observed that the Li$_2$$^{100\textrm{depl}}$MoO$_4$ scintillating bolometers are characterized by excellent spectrometric performance ($\sim$3--6 keV FWHM at 0.24--2.6 MeV $\gamma$'s), moderate scintillation signal ($\sim$0.3--0.6 keV/MeV depending on light collection conditions) and high radiopurity ($^{228}$Th and $^{226}$Ra activities are below a few $\mu$Bq/kg), comparable to the best reported results of low-temperature detectors based on Li$_2$MoO$_4$ with natural or $^{100}$Mo-enriched molybdenum content. Prospects of Li$_2$$^{100\textrm{depl}}$MoO$_4$ bolometers for use in rare-event search experiments are briefly discussed., Comment: Prepared for submission to MDPI Sensors; 16 pages, 7 figures, and 3 tables

Published
2023
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42. The background model of the CUPID-Mo $0νββ$ experiment

Author

Mo Collaboration, Augier, C., Barabash, A. S., Bellini, F., Benato, G., Beretta, M., Bergé, L., Billard, J., Borovlev, Yu. A., Cardani, L., Casali, N., Cazes, A., Celi, E., 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., Kotila, J., 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., 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., and Zolotarova, A. S.

Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det)
Abstract

CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation $0νββ$ decay experiment, CUPID. It consisted of an array of 20 enriched Li$_{2}$$ ^{100}$MoO$_4$ bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform and validate the background prediction for CUPID. In this paper, we present a detailed model of the CUPID-Mo backgrounds. This model is able to describe well the features of the experimental data and enables studies of the $2νββ$ decay and other processes with high precision. We also measure the radio-purity of the Li$_{2}$$^{100}$MoO$_4$ crystals which are found to be sufficient for the CUPID goals. Finally, we also obtain a background index in the region of interest of 3.7$^{+0.9}_{-0.8}$(stat)$^{+1.5}_{-0.7}$(syst)$\times10^{-3}$counts/$Δ$E$_{FWHM}$/mol$_{iso}$/yr, the lowest in a bolometric $0νββ$ decay experiment.

Published
2023
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43. Final results on the $$0\nu \beta \beta $$ <math> <mrow> <mn>0</mn> <mi>ν</mi> <mi>β</mi> <mi>β</mi> </mrow> </math> decay half-life limit of $$^{100}$$ <math> <msup> <mrow></mrow> <mn>100</mn> </msup> </math> Mo from the CUPID-Mo experiment

Author

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

Abstract

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 β β $$ < ( 0.28 - 0.49 ) eV, dependent upon the nuclear matrix element utilized.

Published
2022

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

Author

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

Published
2022
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45. The neutrinoless double beta decay CROSS experiment: demonstrator with surface sensitive bolometers

Author

Zolotarova, A, Bandac, I, Barabash, A, Berest, V, Berge, L, Bourgeois, C, Calvo-Mozota, J, Carniti, P, Chapellier, M, de Combarieu, M, Dafinei, I, Danevich, F, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, P, Guerard, E, Ianni, A, Khalife, H, Konovalov, S, Loaiza, P, Madhukuttan, M, de Marcillac, P, Mariam, R, Marnieros, S, Marrache-Kikuchi, C, Martinez, M, Nones, C, Olivieri, E, Pessina, G, Poda, D, Redon, T, Scarpaci, J, Tretyak, V, Umatov, V, Zarytskyy, M, Zolotarova A., Bandac I. C., Barabash A. S., Berest V., Berge L., Bourgeois Ch., Calvo-Mozota J. M., Carniti P., Chapellier M., de Combarieu M., Dafinei I., Danevich F. A., Dumoulin L., Ferri F., Giuliani A., Gotti C., Gras Ph., Guerard E., Ianni A., Khalife H., Konovalov S. I., Loaiza P., Madhukuttan M., de Marcillac P., Mariam R., Marnieros S., Marrache-Kikuchi C. A., Martinez M., Nones C., Olivieri E., Pessina G., Poda D. V., Redon Th., Scarpaci J. -A., Tretyak V. I., Umatov V. I., Zarytskyy M. M., Zolotarova, A, Bandac, I, Barabash, A, Berest, V, Berge, L, Bourgeois, C, Calvo-Mozota, J, Carniti, P, Chapellier, M, de Combarieu, M, Dafinei, I, Danevich, F, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, P, Guerard, E, Ianni, A, Khalife, H, Konovalov, S, Loaiza, P, Madhukuttan, M, de Marcillac, P, Mariam, R, Marnieros, S, Marrache-Kikuchi, C, Martinez, M, Nones, C, Olivieri, E, Pessina, G, Poda, D, Redon, T, Scarpaci, J, Tretyak, V, Umatov, V, Zarytskyy, M, Zolotarova A., Bandac I. C., Barabash A. S., Berest V., Berge L., Bourgeois Ch., Calvo-Mozota J. M., Carniti P., Chapellier M., de Combarieu M., Dafinei I., Danevich F. A., Dumoulin L., Ferri F., Giuliani A., Gotti C., Gras Ph., Guerard E., Ianni A., Khalife H., Konovalov S. I., Loaiza P., Madhukuttan M., de Marcillac P., Mariam R., Marnieros S., Marrache-Kikuchi C. A., Martinez M., Nones C., Olivieri E., Pessina G., Poda D. V., Redon Th., Scarpaci J. -A., Tretyak V. I., Umatov V. I., and Zarytskyy M. M.

Published
2022

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Author

Augier, C, Augier, C, Barabash, AS, 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, FA, Jesus, M De, Marcillac, P de, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ Huang R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Loaiza, P, Ma, L, Makarov, EP, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, Zolotarova, AS, Augier, C, Augier, C, Barabash, AS, 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, FA, Jesus, M De, Marcillac, P de, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ Huang R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Loaiza, P, Ma, L, Makarov, EP, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Abstract

The CUPID-Mo experiment to search for 0$ u\beta\beta$ decay in $^{100}$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$ u\beta\beta$ decay experiment. CUPID-Mo was comprised of 20 enriched Li$_2$$^{100}$MoO$_4$ scintillating calorimeters, each with a mass of $\sim$ 0.2 kg, operated at $\sim$20 mK. We present here the final analysis with the full exposure of CUPID-Mo ($^{100}$Mo exposure of 1.47 kg$\times$yr) used to search for lepton number violation via 0$ u\beta\beta$ 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 $^{100}$Mo 0$ u\beta\beta$ decay half-life of $T^{0 u}_{1/2} > 1.8 \times 10^{24}$ year (stat.+syst.) at 90% CI. Under the light Majorana neutrino exchange mechanism this corresponds to an effective Majorana neutrino mass of $\left < (0.28$--$0.49)$ eV, dependent upon the nuclear matrix element utilized.

Published
2022

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Author

Augier, C, Augier, C, Barabash, AS, 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, FA, De Jesus, M, de Marcillac, P, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Loaiza, P, Ma, L, Makarov, EP, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, Zolotarova, AS, Augier, C, Augier, C, Barabash, AS, 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, FA, De Jesus, M, de Marcillac, P, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Helis, DL, Huang, HZ, Huang, R, Imbert, L, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, Yu G, Konovalov, SI, Loaiza, P, Ma, L, Makarov, EP, Mariam, R, Marini, L, Marnieros, S, Navick, X-F, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Sanglard, V, Scarpaci, JA, Schmidt, B, Shen, Y, Shlegel, VN, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, and Zolotarova, AS

Published
2022

48. The neutrinoless double beta decay CROSS experiment: demonstrator with surface sensitive bolometers

Author

Zolotarova, A., Bandac, I.C., Barabash, A.S., Berest, V., Bergé, L., Bourgeois, Ch., Calvo-Mozota, J.M., Carniti, P., Chapellier, M., de Combarieu, M., Dafinei, I., Danevich, F.A., Dumoulin, L., Ferri, F., Giuliani, A., Gotti, C., Gras, Ph., Guerard, E., Ianni, A., Khalife, H., Konovalov, S.I., Loaiza, P., Madhukuttan, M., de Marcillac, P., Mariam, R., Marnieros, S., Marrache-Kikuchi, C.A., Martinez, M., Nones, C., Olivieri, E., Pessina, G., Poda, D.V., Redon, Th., Scarpaci, J.A., Tretyak, V.I., Umatov, V.I., Zarytskyy, M.M., Zolotarova, A, Bandac, I, Barabash, A, Berest, V, Berge, L, Bourgeois, C, Calvo-Mozota, J, Carniti, P, Chapellier, M, de Combarieu, M, Dafinei, I, Danevich, F, Dumoulin, L, Ferri, F, Giuliani, A, Gotti, C, Gras, P, Guerard, E, Ianni, A, Khalife, H, Konovalov, S, Loaiza, P, Madhukuttan, M, de Marcillac, P, Mariam, R, Marnieros, S, Marrache-Kikuchi, C, Martinez, M, Nones, C, Olivieri, E, Pessina, G, Poda, D, Redon, T, Scarpaci, J, Tretyak, V, Umatov, V, Zarytskyy, M, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
detector: technology, History, molybdenum: nuclide, shape analysis, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], sensitivity, crystal: surface, neutrinoless double beta decay, Computer Science Applications, Education, double-beta decay: (0neutrino), bolometer, CROSS, tellurium: nuclide, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Abstract

The CROSS experiment is proposing to use a new technology of surface sensitive bolometers for low-background neutrinoless double beta decay searches. Efficient rejection of surface α and β events will allow to reach background in the region of interest below than 10−4 cnts/keV/kg/yr. The isotopes of interest, which are 130Te and 100Mo, are investigated with TeO2 and Li2MoO4 bolometers. The surface sensitivity is achieved thanks to the evaporation of thin metallic film on the crystal surface that modifies the pulse shape of near-surface events. An investigation of various pulse shape parameters was performed. The analysis shows that one of the best parameters for discrimination is the integrated area of the raw signal both for TeO2 and Li2MoO4 with Pd-Al (10 nm - 100 nm) bi-layer.

Published
2022
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49. The neutrinoless double beta decay CROSS experiment: demonstrator with surface sensitive bolometers

Author

Zolotarova, A., primary, Bandac, I.C., additional, Barabash, A.S., additional, Berest, V., additional, Bergé, L., additional, Bourgeois, Ch., additional, Calvo-Mozota, J.M., additional, Carniti, P., additional, Chapellier, M., additional, de Combarieu, M., additional, Dafinei, I., additional, Danevich, F.A., additional, Dumoulin, L., additional, Ferri, F., additional, Giuliani, A., additional, Gotti, C., additional, Ph., Gras, additional, Guerard, E., additional, Ianni, A., additional, Khalife, H., additional, Konovalov, S.I., additional, Loaiza, P., additional, Madhukuttan, M., additional, de Marcillac, P., additional, Mariam, R., additional, Marnieros, S., additional, Marrache-Kikuchi, C.A., additional, Martinez, M., additional, Nones, C., additional, Olivieri, E., additional, Pessina, G., additional, Poda, D.V., additional, Redon, Th., additional, Scarpaci, J.-A., additional, Tretyak, V.I., additional, Umatov, V.I., additional, and Zarytskyy, M.M., additional

Published
2021
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50. A new limit for neutrinoless double-beta decay of 100 Mo from the CUPID-Mo experiment (CUPID-Mo Collaboration)

Author

Armengaud, E., Augier, C., Barabash, A.S., Bellini, F, Benato, G, Benoit, Alain, Beretta, M, Bergé, L., Billard, J., Borovlev, Yu, Bourgeois, Ch, Brudanin, V, Camus, P, Cardani, L, Casali, N, Cazes, A., Chapellier, M, Charlieux, F., Chiesa, D, De Combarieu, M, Dafinei, I, Danevich, F, De Jesus, M., Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, B, Gascon, J., Gironi, L, Giuliani, A, Grigorieva, V, Gros, M, Guerard, E, Helis, D, Huang, H, Huang, R, Johnston, J, Juillard, A., Khalife, H, Kleifges, M, Kobychev, V, Kolomensky, Yu, Konovalov, S, Leder, A, Loaiza, P, Ma, L, Makarov, E, De Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Misiak, D, Navick, X.-F, Nones, C, Norman, E, Novati, V, Olivieri, E, Ouellet, J, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, PENG, H, Pessina, G, Pirro, S, Poda, D, Polischuk, O, Pozzi, S, Previtali, E, Redon, Th, Rojas, A, Rozov, S, Rusconi, C, Sanglard, V., Scarpaci, J.A., Schäffner, K, Schmidt, B, Shen, Y, Shlegel, V, Siebenborn, B, Singh, V, Tomei, C, Tretyak, V, Umatov, V, Vagneron, L., Velázquez, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, M, Zolotarova, A. S., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Cryogénie (Cryo), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CUPID, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institute of Theoretical and Experimental Physics [Moscow] (ITEP), National Research Center 'Kurchatov Institute' (NRC KI), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Laboratori Nazionali di Frascati (INFN), LABORATORY NAZIONALI DI FRASCATI, Hélium : du fondamental aux applications (NEEL - HELFA), University of California [Berkeley] (UC Berkeley), University of California (UC), Nikolaev Institute of Inorganic Chemistry [Novosibirsk] (NIC), Siberian Branch of the Russian Academy of Sciences (SB RAS), Dzhelepov Laboratory of Nuclear Problems [Dubna] (DLNP), Joint Institute for Nuclear Research (JINR), Cryogénie (NEEL - Cryo), Istituto Nazionale di Fisica Nucleare [Sezione di Roma 1] (INFN), Istituto Nazionale di Fisica Nucleare, Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), Institut Rayonnement Matière de Saclay (IRAMIS), Institute for Nuclear Research of NAS of Ukraine, National Academy of Sciences of Ukraine (NASU), Karlsruhe Institute of Technology (KIT), Université Paris-Saclay, Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Fudan University [Shanghai], Massachusetts Institute of Technology (MIT), Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari (INFN, Sezione di Cagliari), Istituto Nazionale di Fisica Nucleare (INFN), University of Science and Technology of China [Hefei] (USTC), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), University of Southern California (USC), Science et Ingénierie des Matériaux et Procédés (SIMaP), and Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )

Subjects
[PHYS]Physics [physics], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2021
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