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Random coincidence of 2 nu 2 beta decay events as a background source in bolometric 0 nu 2 beta decay experiments

D. M. Chernyak 1 F. A. Danevich A. Giuliani 1 E. Olivieri 2 M. Tenconi 3 V. I. Tretyak
1 CSNSM PS1
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
2 CSNSM INSTR
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Abstract : Two-neutrino double beta decay can create an irremovable background even in high energy resolution detectors searching for neutrinoless double beta decay due to random coincidence of 2 nu 2 beta events in the case of poor time resolution. Some possibilities for suppressing this background in cryogenic scintillating bolometers are discussed. It is shown that the present bolometric detector technologies enable one to control this form of background at the level required to explore the inverted hierarchy of the neutrino mass pattern, including the case of bolometers searching for the neutrinoless double beta decay of Mo-100, which is characterized by a relatively short two-neutrino double beta decay half-life.
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http://hal.in2p3.fr/in2p3-00713725
Contributor : Christine Hadrossek <>
Submitted on : Monday, July 2, 2012 - 2:38:06 PM
Last modification on : Wednesday, September 16, 2020 - 5:42:33 PM

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D. M. Chernyak, F. A. Danevich, A. Giuliani, E. Olivieri, M. Tenconi, et al.. Random coincidence of 2 nu 2 beta decay events as a background source in bolometric 0 nu 2 beta decay experiments. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2012, 72, pp.1989. ⟨10.1140/epjc/s10052-012-1989-y⟩. ⟨in2p3-00713725⟩

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