Pulse shape discrimination in CUPID-Mo using principal component analysis

Huang, R. G.; Armengaud, E.; Augier, C.; Barabash, A. S.; Bellini, F.; Benato, G.; Benoı̂t, A.; Beretta, M.; Bergé, L.; Billard, J.; Borovlev, Yu. A.; Bourgeois, C.; Brudanin, V.; Camus, P.; Cardani, L.; Casali, N.; Cazes, A.; Chapellier, M.; Charlieux, F.; Combarieu, M. de; Dafinei, I.; Danevich, F.A.; Jésus, M. de; Dixon, T.; Dumoulin, L.; Eitel, K.; Ferri, F.; Fujikawa, B. K.; Gascon, J.; Gironi, L.; Giuliani, A.; Grigorieva, V. D.; Gros, M.; Guerard, E.; Helis, D.; Huang, H. Z.; Johnston, J.; Juillard, A.; Khalife, H.; Kleifges, M.; Kobychev, V.; Kolomensky, Yu. G.; Коновалов, С. И.; Loaiza, P.; Ma, L.; Makarov, E. P.; Marcillac, P. de; Mariam, R.; Marini, L.; Marnieros, S.; Misiak, D.; Navick, X.F.; Nones, C.; Norman, E. B.; Olivieri, E.; Ouellet, J. L.; Pagnanini, L.; Pari, P.; Pattavina, L.; Paul, Biswajit; Pavan, M.; Peng, H.; Pessina, G.; Pirro, S.; Poda, D.V.; Polischuk, O. G.; Previtali, E.; Redon, T.; Rozov, S.; Rusconi, C.; Sanglard, V.; Scarpaci, J. A.; Schäffner, K.; Schmidt, Benjamin; Shen, Yang; 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. A.; Xue, M.; Yakushev, E.; Zarytskyy, M. M.; Zolotarova, A.

doi:10.1088/1748-0221/16/03/p03032

Cited by 15 publications

(15 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this analysis we use a new algorithm based on principal component analysis (PCA) for pulse shape discrimination. The method has been developed and documented for CUPID-Mo 56 , and has been adapted for use in CUORE 57 . This technique replaces the algorithm used in previous CUORE results, which was based on six pulse shape variables 30 .…”

Section: Methodsmentioning

confidence: 99%

Search for Majorana neutrinos exploiting millikelvin cryogenics with CUORE

Adams¹,

Alduino²,

Alfonso³

et al. 2022

Nature

Self Cite

108

View full text Add to dashboard Cite

The possibility that neutrinos may be their own antiparticles, unique among the known fundamental particles, arises from the symmetric theory of fermions proposed by Ettore Majorana in 19371. Given the profound consequences of such Majorana neutrinos, among which is a potential explanation for the matter–antimatter asymmetry of the universe via leptogenesis2, the Majorana nature of neutrinos commands intense experimental scrutiny globally; one of the primary experimental probes is neutrinoless double beta (0νββ) decay. Here we show results from the search for 0νββ decay of 130Te, using the latest advanced cryogenic calorimeters with the CUORE experiment3. CUORE, operating just 10 millikelvin above absolute zero, has pushed the state of the art on three frontiers: the sheer mass held at such ultralow temperatures, operational longevity, and the low levels of ionizing radiation emanating from the cryogenic infrastructure. We find no evidence for 0νββ decay and set a lower bound of the process half-life as 2.2 × 1025 years at a 90 per cent credibility interval. We discuss potential applications of the advances made with CUORE to other fields such as direct dark matter, neutrino and nuclear physics searches and large-scale quantum computing, which can benefit from sustained operation of large payloads in a low-radioactivity, ultralow-temperature cryogenic environment.

show abstract

Section: Methodsmentioning

confidence: 99%

Search for Majorana neutrinos exploiting millikelvin cryogenics with CUORE

Adams¹,

Alduino²,

Alfonso³

et al. 2022

Nature

Self Cite

108

View full text Add to dashboard Cite

show abstract

“…This measurement shows the utility of cryogenic bolometers for precision studies across multiple energy bins to test various spectral shapes that stem from rare/forbidden nuclear processes. Further developments in cryogenic detectors which exhibit faster timing resolution, such as those using TESs for heat and/or light readout, would provide better separation of low-energy pile-up events and could offer even better energy resolutions than the NTDs used in this experiment [25,76].…”

Section: Discussionmentioning

confidence: 99%

“…Such detectors operate at milli-kelvin temperatures and measure energy deposition events by converting phonons into a temperature increase within a sensitive thermistor. Bolometers benefit from excellent energy resolution, high electron containment efficiencies, low energy trigger thresholds, and strong particle-ID capabilities when equipped with a dual heat/light or heat/ionization readout [15,23,25]. Additionally, the ability to operate nearly any crystalline ma-terial as a bolometer provides practical means to study a very wide range of long-lived nuclear processes for which sufficient quantities of isotope may be procured and grown into crystalline form.…”

Section: Introductionmentioning

confidence: 99%

Determining $g_{A}/g_{V}$ with High Resolution Spectral Measurements Using an LiInSe$_2$ Bolometer

Leder,

Mayer,

Ouellet

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Neutrinoless Double-Beta decay (0νββ) processes sample a wide range of intermediate forbidden nuclear transitions, which may be impacted by quenching of the axial vector coupling constant (gA/gV ), the uncertainty of which plays a pivotal role in determining the sensitivity reach of 0νββ experiments. In this Letter, we present measurements performed on a high-resolution LiInSe2 bolometer in a "source=detector" configuration to measure the spectral shape of the 4-fold forbidden β-decay of 115 In. The value of gA/gV is determined by comparing the spectral shape of theoretical predictions to the experimental β spectrum taking into account various simulated background components as well as a variety of detector effects. We find evidence of quenching of gA/gV at > 5σ with a model-dependent quenching factor of 0.655 ± 0.002 as compared to the free-nucleon value for the Interacting Shell Model. We also measured the 115 In half-life to be [5.18 ± 0.06(stat.) +0.005 −0.015 (sys.)] × 10 14 yr within the Interacting Shell Model framework. This work demonstrates the power of the bolometeric technique to perform precision nuclear physics single-β decay measurements, which can help reduce the uncertainties in the calculation of 0νββ nuclear matrix elements.

show abstract

“…Moreover, 100 Mo-enriched crystals (Li 2 100 MoO 4 ; 97% of enrichment in 100 Mo) have been already developed and used in the LUMINEU (4-detector array) [74,173,345] and its follow-up CUPID-Mo (20-detector array) [159,259,[497][498][499] bolometric DBD search experiments at LSM. Despite of the modest exposure of these small-scale CUPID demonstrators, they have provided valuable physics results.…”

Section: Lithium Molybdatementioning

confidence: 99%

Scintillation in Low-Temperature Particle Detectors

Poda

2021

Physics

View full text Add to dashboard Cite

Inorganic crystal scintillators play a crucial role in particle detection for various applications in fundamental physics and applied science. The use of such materials as scintillating bolometers, which operate at temperatures as low as 10 mK and detect both heat (phonon) and scintillation signals, significantly extends detectors performance compared to the conventional scintillation counters. In particular, such low-temperature devices offer a high energy resolution in a wide energy interval thanks to a phonon signal detection, while a simultaneous registration of scintillation emitted provides an efficient particle identification tool. This feature is of great importance for a background identification and rejection. Combined with a large variety of elements of interest, which can be embedded in crystal scintillators, scintillating bolometers represent powerful particle detectors for rare-event searches (e.g., rare alpha and beta decays, double-beta decay, dark matter particles, neutrino detection). Here, we review the features and results of low-temperature scintillation detection achieved over a 30-year history of developments of scintillating bolometers and their use in rare-event search experiments.

show abstract

Pulse shape discrimination in CUPID-Mo using principal component analysis

Cited by 15 publications

References 13 publications

Search for Majorana neutrinos exploiting millikelvin cryogenics with CUORE

Search for Majorana neutrinos exploiting millikelvin cryogenics with CUORE

Determining $g_{A}/g_{V}$ with High Resolution Spectral Measurements Using an LiInSe$_2$ Bolometer

Scintillation in Low-Temperature Particle Detectors

Contact Info

Product

Resources

About