Sensitivity of a tonne-scale NEXT detector for neutrinoless double-beta decay searches

Adams, C.; Álvarez, V.; Arazi, L.; Arnquist, I. J.; Azevedo, C.D.R.; Bailey, K.; Ballester, F.; Benlloch-Rodríguez, J.M.; Borges, F.I.G.M.; Byrnes, N.; Cárcel, S.; Carrión, J.V.; Cebrián, S.; Church, E.; Conde, C.A.N.; Contreras, T.; Denisenko, A. A.; Díaz, G. A.; Díaz, Julio Pérez; Escada, J.; Esteve, R.; Felkai, R.; Fernandes, L. M. P.; Ferrario, P.; Ferreira, A. L.; Foss, Frank W.; Freitas, E.D.C.; Freixa, Zoraida; Generowicz, J.; Goldschmidt, A.; Gómez-Cadenas, J.J.; Gonzalez, R. C.; González-Díaz, D.; Gosh, S.; Guénette, R.; Gutiérrez, Rafael; Haefner, J.; Hafidi, K.; Hauptman, J. M.; Henriques, C. A. O.; Morata, J. A. Hernando; Herrero, Pablo; Herrero, V.; Ho, Johnny C.; Ifergan, Y.; Jones, Ben; Kekic, M.; Labarga, L.; Laing, A.; Lebrun, P.; López-March, N.; Losada, M.; Mano, R.D.P.; Martín-Albo, J.; Martínez, A.; Martínez-Vara, M.; Martínez-Lema, G.; McDonald, A. D.; Meziani, Z. E.; Monrabal, F.; Monteiro, C. M. B.; Mora, Francisco; Vidal, J. Muñoz; Newhouse, C.; Novella, P.; Nygren, D. R.; Oblak, E.; Palmeiro, B.; Para, A.; Pérez, Javier Laso; Querol, M.; Redwine, A. B.; Renner, J.; Ripoll, L.; Rivilla, Iván; García, Y. Rodríguez; Rodríguez, J.; Rogero, Celia; Rogers, L.; Romeo, B.; Romo-Luque, C.; Santos, F.P.; Santos, J. M. F. dos; Simón, A.; Sorel, M.; Stanford, C.; Teixeira, J. M. R.; Thapa, Pawan; Toledo, J.F.; Torrent, J.; Usón, A.; Veloso, J.F.C.A.; Vuong, T.T.; Webb, R.; Weiss-Babai, R.; White, James T.; Woodruff, K.; Yahlali, N.

doi:10.1007/jhep08(2021)164

Cited by 38 publications

(23 citation statements)

References 46 publications

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“…The next very few years will see stricter limits from experiments-such as LEGEND-200, CUORE, KamLAND-Zen 800, and SNO+-that are currently operating or under construction. On a slightly longer time scale, ton-scale experiments [19][20][21][22][23][24] based on 76 Ge, 100 Mo, 136 Xe, and perhaps other isotopes will come on line. The goal of these large experiments is the ability to detect any decay caused by the exchange of light Majorana neutrinos if the neutrino mass hierarchy is inverted (i.e., if the neutrino with the largest electron-flavor component is the heaviest), as well as increased sensitivity to decay caused primarily by the exchange of other still-hypothetical particles.…”

Section: Introductionmentioning

confidence: 98%

Towards Precise and Accurate Calculations of Neutrinoless Double-Beta Decay: Project Scoping Workshop Report

Cirigliano,

Davoudi,

Engel

et al. 2022

Preprint

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This white paper is an outgrowth of a National Science Foundation (NSF) Project Scoping Workshop, the purpose of which was to assess the current status of calculations for the nuclear matrix elements governing neutrinoless doublebeta decay and determine if more work on them is required. The recent effort to define the United States' role in ton-scale experiments, together with the conclusion in 2021 of the Department of Energy (DOE) Topical Collaboration on neutrinoless double-beta decay, made such an exercise extremely timely.The main conclusions of the workshop can be summarized as follows:

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Section: Introductionmentioning

confidence: 98%

Towards Precise and Accurate Calculations of Neutrinoless Double-Beta Decay: Project Scoping Workshop Report

Cirigliano,

Davoudi,

Engel

et al. 2022

Preprint

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“…We address three items in this article: monitoring the 222 Rn concentration inside the LSC and its correlation with the internal and external temperature, pressure and relative humidity; the measurement of the residual 222 Rn concentration of the evaporated nitrogen that was used to purge the ANAIS-112 experiment during 2017-2018 [11,12] and, finally, a similar measurement of the air provided by the radon abatement system [6] that supplies radon-free air to the experiments in the LSC [13][14][15][16][17][18][19]. Our data add very useful information to the published results of other background sources at LSC: the rock radioactivity [20], the neutron flux [21,22] and the cosmic-ray muon flux [23].…”

Section: Introductionmentioning

confidence: 99%

Long term measurement of the $^{222}$Rn concentration in the Canfranc Underground Laboratory

Amaré¹,

I.²,

Blancas³

et al. 2022

Preprint

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We report the results of six years (2013)(2014)(2015)(2016)(2017)(2018) of measurements of 222 Rn air concentration, relative humidity, atmospheric pressure and temperature in the halls A, B and C of the Canfranc Underground Laboratory (LSC). We have calculated all the Pearson correlation coefficients among these parameters and we have found a positive correlation between the 222 Rn concentration and the relative humidity. Both correlated variables show a seasonal periodicity. The joint analysis of laboratory data and four years (2015-2018) of the meteorological variables outside the laboratory shows the correlation between the 222 Rn concentration and the outside temperature. The collected information stresses the relevance of designing good Rn-mitigation strategies in current and future experiments at LSC; in particular, we have checked for two years (2017-2018) the good performance of the mitigation procedure of the ANAIS-112 experiment. Finally, in another measurement (2019 for two years of live time, we report an upper limit to the residual 222 Rn content of the radon-free air provided by the radon abatement system installed in the laboratory.

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“…The experimental goal of NEXT experiments is to search for neutrinoless double beta decay in 136 Xe using high-pressure xenon gas time projection chambers (HPGXeTPC) with amplification of the ionization signal by electroluminescence (EL), which offers good energy resolution and tracking-based event identification. Moreover, the NEXT collaboration is currently defining a ton-scale version of NEXT-100 [ 3 ] that would be able to reach a sensitivity to the half-life of the 136 Xe neutrinoless double beta decay of 10 27 yr, after a few years of operation.…”

Section: Introductionmentioning

confidence: 99%

Data Compression in the NEXT-100 Data Acquisition System

Bosch

Ponce

Estévez

et al. 2022

Sensors

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NEXT collaboration detectors are based on energy measured by an array of photomultipliers (PMT) and topological event filtering based on an array of silicon photomultipliers (SiPMs). The readout of the PMT sensors for low-frequency noise effects and detector safety issues requires a grounded cathode connection that makes the readout AC-couple with variations in the signal baseline. Strict detector requirements of energy resolution better than 1% FWHM require a precise baseline reconstruction that is performed offline for data analysis and detector performance characterization. Baseline variations make it inefficient to apply traditional lossy data compression techniques, such as zero-suppression, that help to minimize data throughput and, therefore, the dead time of the system. However, for the readout of the SiPM sensors with less demanding requirements in terms of accuracy, a traditional zero-suppression is currently applied with a configuration that allows for a compression ratio of around 71%. The third stage in the NEXT detectors program, the NEXT-100 detector, is a 100 kg detector that instruments approximately five times more PMT sensors and twice the number of SiPM sensors than its predecessor, the NEXT-White detector, putting more pressure in the DAQ throughput, expected to be over 900 MB/s with the current configuration, which will worsen the dead time of the acquisition data system. This paper describes the data compression techniques applied to the sensor data in the NEXT-100 detector, which reduces data throughput and minimizes dead time while maintaining the event rate to the level of its predecessor, around 50 Hz.

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Sensitivity of a tonne-scale NEXT detector for neutrinoless double-beta decay searches

Cited by 38 publications

References 46 publications

Towards Precise and Accurate Calculations of Neutrinoless Double-Beta Decay: Project Scoping Workshop Report

Towards Precise and Accurate Calculations of Neutrinoless Double-Beta Decay: Project Scoping Workshop Report

Long term measurement of the $^{222}$Rn concentration in the Canfranc Underground Laboratory

Data Compression in the NEXT-100 Data Acquisition System

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