BARABASH, A.S.; HUBERT, Ph.; NACHAB, A.; UMATOV, V.I.

doi:10.1088/1742-6596/1468/1/012106

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BARABASH, A.S.

HUBERT, Ph.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

NACHAB, A.

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Communication dans un congrès

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J.Phys.Conf.Ser., J.Phys.Conf.Ser., 2019-09-09, Toyama. 2020, vol. 1468, n° 1, p. 012106

Resumen en inglés

Triple beta decay of $^{150}$Nd to the ground and excited states of $^{150}$Eu and quadruple beta decay of $^{150}$Nd to the excited states of $^{150}$Gd have been studied using a 400 cm$^3$ low-background HPGe detector. A half-life limit for the quadruple beta decay to the 0$^+_1$ state of $^{150}$Gd was found to be T$_{1/2}$(0$\nu$ + 4$\nu$) > 8.7 × 10$^{20}$ yr (90% C.L.). For other (0$\nu$+4$\nu$) transitions to the excited states limits for the first time have been obtained at the level of (6.1 − 9.5) × 10$^{20}$ yr (90% C.L.). We report here also the results for the first search for triple beta decay to the ground and excited final states of $^{150}$Eu, T$_{1/2}$(0$\nu$ + 3$\nu$) > (0.04 − 4.8) × 10$^{20}$ yr (90% C.L.).< Leer menos

Palabras clave en inglés

gadolinium: nuclide

nucleus: excited state

europium

experimental results

double-beta decay

neodymium: nuclide

semiconductor detector: germanium

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Search for triple and quadruple beta decay of $^{150}$Nd using low-background HPGe detector

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