Scintillating bolometers for the LUCIFER project

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

Pattavina, L.^1

INFN Laboratori Nazionali Del Gran Sasso, Assergi (AQ)

1-67100, Italy^1

关键词: Energy resolutions;    Neutrino mass;    Neutrinoless double-beta decays;    Present status;    Region of interest;    Scintillating Bolometers;    Sensitive probe;    The standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/6/062048/pdf
DOI  :  10.1088/1742-6596/718/6/062048

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Neutrinoless double beta decay (0vββ) is one of the most sensitive probes for physics beyond the Standard Model, providing unique information on the nature and masses of neutrinos. In order to explore the so-called inverted neutrino mass hierarchy region a further improvement on the upcoming 0vββ experiment is needed. In this respect, scintillating bolometers are the suitable technology for achieving such goal: they ensure excellent energy resolution and highly efficient particle discrimination. The LUCIFER project aims at deploying the first array of enriched scintillating bolometers for the investigation of 0vββ of82Se. The matrix which embeds the source is an array of Zn82Se crystals, where enriched82Se is used as decay isotope. Taking advantage of the large Q-value (2997 keV) and of the particle discrimination, the expected background rate in the region of interest is as low as 10-3c/keV/kg/y. The foreseen sensitivity after 2 years of live time will be 1.8×1025years. We will report on the potential of such technology and on the present status of the project.