Investigation of $\beta^+$EC, EC/EC processes in $^{74}$Se
| Autor: | G. Warot, A. V. Rakhimov, V. B. Brudanin, I. Stekl, N. I. Rukhadze, V. I. Umatov, E. Rukhadze, S. I. Konovalov, Yu. A. Shitov, A. A. Klimenko, A. S. Barabash |
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| Přispěvatelé: | Laboratoire Souterrain de Modane (LSM - UMR 6417), 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]), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-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])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
010308 nuclear & particles physics Radiochemistry selenium: lifetime chemistry.chemical_element [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] 7. Clean energy 01 natural sciences energy: transition neutrino: exchange background: low nucleus: transition selenium: semileptonic decay Volume (thermodynamics) chemistry double-beta decay: (0neutrino) Double beta decay 0103 physical sciences Underground laboratory double-beta decay: (2neutrino) 010306 general physics Hpge detector selenium: nuclide Selenium experimental results |
| Zdroj: | AIP Conf.Proc. Matrix Elements for the Double-beta-decay EXperiments Matrix Elements for the Double-beta-decay EXperiments, May 2019, Prague, Czech Republic. pp.020021, ⟨10.1063/1.5130982⟩ |
| Popis: | International audience; Investigation of double beta decay processes (β+EC, EC/EC) of 74Se was performed at the Modane underground laboratory (LSM, France, 4800 m w.e.) using ultra low-background HPGe detector Obelix with sensitive volume of 600 cm3 and a sample of natural selenium with a mass of 1.6 kg, containing ∼0.89% (∼14.24 g) of 74Se. New experimental limits (at 90 % CL) on double beta decay transitions of 74Se to the ground and exited states of 74Ge were obtained from the preliminary calculation of experimental data accumulated in 135 days. |
| Databáze: | OpenAIRE |
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