Double-β decay of 82Se

Arnold, R.; Augier, C.; Baker, J. D.; Barabash, A. S.; Blum, D.; Brudanin, V.; Caffrey, A.J.; Campagne, Jean-Eric; Caurier, E.; Dassié, D.; Egorov, V.; Eschbach, R.; Filipova, T.; Gurriarán, R.; Guyonnet, J.L.; Hubert, F.; Hubert, Ph.; Jullian, S.; Kisel, I.; Kochetov, O.; Kornoukhov, V. N.; Kovalenko, V.; Lalanne, D.; Laplanche, F.; Leccia, F.; Linck, I.; Longuemare, C.; Marquet, Ch.; Mauger, F.; Mennrath, P.; Nicholson, H.; Pilugin, I.; Piquemal, F.; Purtov, O.; Reyss, J. L.; Sarazin, X.; Scheibling, F.; Suhonen, J.; Sutton, C.S.; Szklarz, G.; Timkin, V.; Torres, R. E. Ticse; Tretyak, V. I.; Umatov, V. I.; Vanyushin, I.A.; Vareille, A.; Vasilyev, Yu. B.; Vylov, Ts.; Zerkin, V.

doi:10.1016/s0375-9474(98)00208-5

Cited by 76 publications

(15 citation statements)

References 30 publications

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“…The evaluated lower limit on the half-life of 82 Se double-beta decay on the excited levels of daughter nuclei are the most stringent limits up-to-date. Our sensi- tivity surpasses the one of other works reported in literature [39,40] by about one order of magnitude. Furthermore the limit set for the decay to 2 + 1 state contradicts the theoretical calculations reported in [2].…”

Section: Results and Limits On Contaminationscontrasting

confidence: 47%

Double-beta decay investigation with highly pure enriched $$^{82}$$ 82 Se for the LUCIFER experiment

et al. 2015

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The LUCIFER project aims at deploying the first array of enriched scintillating bolometers for the investigation of neutrinoless double-beta decay of Se. The matrix which embeds the source is an array of ZnSe crystals, where enriched Se is used as decay isotope. The radiopurity of the initial components employed for manufacturing crystals, that can be operated as bolometers, is crucial for achieving a null background level in the region of interest for double-beta decay investigations. In this work, we evaluated the radioactive content in 2.5 kg of 96.3 % enriched Se metal, measured with a high-purity germanium detector at the Gran Sasso deep underground laboratory. The limits on internal contaminations of primordial decay chain elements of Th, U and U are respectively: 61, 110 and 74 Bq/kg at 90 % C.L. The extremely low-background conditions in which the measurement was carried out and the high radiopurity of the Se allowed us to establish the most stringent lower limits on the half-lives of the double-beta decay of Se to 0, 2 and 2 excited states of Kr of 3.410, 1.310 and 1.010 y, respectively, with a 90 % C.L.

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Section: Results and Limits On Contaminationscontrasting

confidence: 47%

Double-beta decay investigation with highly pure enriched $$^{82}$$ 82 Se for the LUCIFER experiment

et al. 2015

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“…[78]). Thus, to obtain a present half-life value for 82 Se, only the results of the direct measurements [1,42,43] were used. The result of Ref.…”

Section: Sementioning

confidence: 99%

Average and recommended half-life values for two-neutrino double beta decay

2015

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All existing positive results on two neutrino double beta decay in different nuclei were analyzed. Using the procedure recommended by the Particle Data Group, weighted average values for half-lives of + 1 ) and 238 U were obtained. Existing geochemical data were analyzed and recommended values for half-lives of 128 Te, and 130 Ba are proposed. Given the measured half-life values, nuclear matrix elements were calculated using latest (more reliable and precise) values for phase space factor. Finally, previous results (PRC 81 (2010) 035501) were up-dated and results for 136 Xe were added.

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“…A combination of drift chambers, plastic scintillators and NaI-detectors is used in the ELEGANT V detector, investigating samples of the order of 100 g enriched in 100 Mo and 116 Cd [57]. Enriched foils of 100 Mo , 82 Se , 116 Cd and 96 Zr are also used by the NEMO-2 experiment [58]. Geochemical experiments : An alternative approach relies on the detection of the daughter nucleus.…”

Section: Double Beta Decaymentioning

confidence: 99%

On the physics of massive neutrinos

1998

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Massive neutrinos open up the possibility for a variety of new physical phenomena. Among them are oscillations and double beta decay. Furthermore they influence several fields from particle physics to cosmology. In this article the concept of massive neutrinos is given and the current status of experimental research is extensively reviewed. This includes astrophysical studies of solar, supernova and very high energy neutrinos. Future perspectives are also outlined.Comment: 86 pages, 50 figures (large file 8MB!!). To appear in Physics Report

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Double-β decay of 82Se

Cited by 76 publications

References 30 publications

Double-beta decay investigation with highly pure enriched $$^{82}$$ 82 Se for the LUCIFER experiment

Double-beta decay investigation with highly pure enriched $$^{82}$$ 82 Se for the LUCIFER experiment

Average and recommended half-life values for two-neutrino double beta decay

On the physics of massive neutrinos

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