Random coincidence of 2ν2β decay events as a background source in bolometric 0ν2β decay experiments
Creators
- 1. Institute for Nuclear Research, MSP, 03680 Kyiv, Ukraine and Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, 91405 Orsay, France
- 2. Institute for Nuclear Research, MSP, 03680 Kyiv, Ukraine
- 3. Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, 91405 Orsay, France
Description
Two-neutrino double β decay can create an irremovable background even in high energy resolution detectors searching for neutrinoless double β decay due to random coincidence of 2ν2β 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 β decay of 100Mo, which is characterized by a relatively short two-neutrino double β decay half- life.
Files
epjc-2012.pdf
Files
(365.1 kB)
Name | Size | Download all |
---|---|---|
md5:4ff724dc71befe2b119584f0f8a60558
|
365.1 kB | Preview Download |