A new limit on 0𝝊ΒΒ-decay of 100Mo with scintillating calorimeters from the CUPID-Mo experiment

(2020). A new limit on 0𝝊ΒΒ-decay of 100Mo with scintillating calorimeters from the CUPID-Mo experiment. SNOLAB. https://scivideos.org/snolab/1006

A new limit on 0𝝊ΒΒ-decay of 100Mo with scintillating calorimeters from the CUPID-Mo experiment. SNOLAB, Aug. 17, 2020, https://scivideos.org/snolab/1006 

          @misc{ scivideos_1006,
            doi = {},
            url = {https://scivideos.org/snolab/1006},
            author = {},
            keywords = {Physics},
            language = {en},
            title = {A new limit on 0𝝊ΒΒ-decay of 100Mo with scintillating calorimeters from the CUPID-Mo experiment},
            publisher = {SNOLAB},
            year = {2020},
            month = {aug},
            note = {1006 see, \url{https://scivideos.org/snolab/1006}}
          }
Benjamin Schmidt
Source Repository SNOLAB
Collection
Talk Type Scientific Series
Subject

Abstract

The CUPID-Mo experiment, currently taking data at the Laboratoire Souterrain de Modane (France), is a demonstrator for CUPID, the next-generation upgrade of the first ton-scale cryogenic 0νββ-search, CUORE. The experiment is searching for 0νββ decay of 100Mo with an array of 20 enriched ~0.2 kg Li2MoO4 crystals. The detectors are operated deep under the Frejus mountain at a depth of 4800 m.w.e. in a dilution refrigerator at ~20 mK. They are complemented by cryogenic Ge light detectors allowing us to distinguish alpha from beta/gamma events by the detection of both heat and scintillation light signals. With a bolometric performance of ~ 7 keV energy resolution (FWHM) at 2615 keV, full alpha-to-beta/gamma separation and excellent radio-purity levels, we operate in the background free regime. For the present analysis, we consider more than one year of data acquired between March 2019 and April 2020. With 2.17 kg x yr of exposure and a high analysis efficiency of ~ 90%, we are able to set a new world leading limit for 0νββ decay of 100Mo. In this seminar, I will present the details of the analysis, the new limit of T1/2 > 1.4 x 1024 yr at 90% c.i. and I will conclude with an outlook on the data taken up to the end of CUPID-Mo operations in July 2020 and further upcoming analyses.