Bolometric Double Beta Decay Experiments: Review and Prospects
Open Access
- 26 November 2021
- Vol. 13 (12), 2255
- https://doi.org/10.3390/sym13122255
Abstract
This review aims to cover the history and recent developments on cryogenic bolometers for neutrinoless double beta decay (02) searches. A 02 decay observation would confirm the total lepton charge non-conservation, which is related to a global U(1) symmetry. This discovery would also provide essential information on neutrino masses and nature, opening the door to new physics beyond the Standard Model. The bolometric technology shows good prospects for future ton-scale experiments that aim to fully investigate the inverted ordering region of neutrino masses. The big advantage of bolometers is the high energy resolution and the possibility of particle identification, as well as various methods of additional background rejection. The CUORE experiment has proved the feasibility of ton-scale cryogenic experiments, setting the most stringent limit on Te 02 decay. Two CUPID demonstrators (CUPID-0 and CUPID-Mo) have set the most stringent limits on Se and Mo isotopes, respectively, with compatibly low exposures. Several experiments are developing new methods to improve the background in the region of interest with bolometric detectors. CUPID and AMoRE experiments aim to cover the inverted hierarchy region, using scintillating bolometers with hundreds of kg of Mo. We review all of these efforts here, with a focus on the different types of radioactive background and the measures put in place to mitigate them.
Keywords
This publication has 75 references indexed in Scilit:
- Random coincidence of 2ν2β decay events as a background source in bolometric 0ν2β decay experimentsThe European Physical Journal C, 2012
- Radon-induced surface contaminations in low background experimentsThe European Physical Journal C, 2011
- 130Te neutrinoless double-beta decay with CUORICINOAstroparticle Physics, 2011
- Production of high purity TeO2 single crystals for the study of neutrinoless double beta decayJournal of Crystal Growth, 2010
- TABLES OF DOUBLE BETA DECAY DATA—AN UPDATEAtomic Data and Nuclear Data Tables, 2002
- A scintillating bolometer for experiments on double beta decayPhysics Letters B, 1998
- Double-beta decay ofPhysical Review Letters, 1991
- Electrical and thermal properties of neutron-transmutation-doped Ge at 20 mKPhysical Review B, 1990
- Search for Neutrinos from the SunPhysical Review Letters, 1968
- On Transition Probabilities in Double Beta-DisintegrationPhysical Review B, 1939