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Title: First data from the CUPID-Mo neutrinoless double beta decay experiment

Abstract

The CUPID-Mo experiment is searching for neutrinoless double beta decay in $$^{100}$$Mo, evaluating the technology of cryogenic scintillating Li$$_{2}^{100}$$MoO$$_4$$ detectors for CUPID (CUORE Upgrade with Particle ID). CUPID-Mo detectors feature background suppression using a dual-readout scheme with Li$$_{2}$$MoO$$_4$$ crystals complemented by Ge bolometers for light detection. The detection of both heat and scintillation light signals allows the efficient discrimination of $$\alpha$$ from $$\gamma$$&$$\beta$$ events. In this proceedings, we discuss results from the first 2 months of data taking in spring 2019. In addition to an excellent bolometric performance of 6.7$$\,$$keV (FWHM) at 2615$$\,$$keV and an $$\alpha$$ separation of better than 99.9% for all detectors, we report on bulk radiopurity for Th and U. Finally, we interpret the accumulated physics data in terms of a limit of $$T_{1/2}^{0\nu}\,> 3\times10^{23}\,$$yr for $$^{100}$$Mo and discuss the sensitivity of CUPID-Mo until the expected end of physics data taking in early 2020.

Authors:
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
CUPID-Mo Collaboration
OSTI Identifier:
1580996
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series
Additional Journal Information:
Journal Volume: 1468; Journal ID: ISSN 1742-6588
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Schmidt, B. First data from the CUPID-Mo neutrinoless double beta decay experiment. United States: N. p., 2020. Web. doi:10.1088/1742-6596/1468/1/012129.
Schmidt, B. First data from the CUPID-Mo neutrinoless double beta decay experiment. United States. https://doi.org/10.1088/1742-6596/1468/1/012129
Schmidt, B. Sat . "First data from the CUPID-Mo neutrinoless double beta decay experiment". United States. https://doi.org/10.1088/1742-6596/1468/1/012129. https://www.osti.gov/servlets/purl/1580996.
@article{osti_1580996,
title = {First data from the CUPID-Mo neutrinoless double beta decay experiment},
author = {Schmidt, B.},
abstractNote = {The CUPID-Mo experiment is searching for neutrinoless double beta decay in $^{100}$Mo, evaluating the technology of cryogenic scintillating Li$_{2}^{100}$MoO$_4$ detectors for CUPID (CUORE Upgrade with Particle ID). CUPID-Mo detectors feature background suppression using a dual-readout scheme with Li$_{2}$MoO$_4$ crystals complemented by Ge bolometers for light detection. The detection of both heat and scintillation light signals allows the efficient discrimination of $\alpha$ from $\gamma$&$\beta$ events. In this proceedings, we discuss results from the first 2 months of data taking in spring 2019. In addition to an excellent bolometric performance of 6.7$\,$keV (FWHM) at 2615$\,$keV and an $\alpha$ separation of better than 99.9% for all detectors, we report on bulk radiopurity for Th and U. Finally, we interpret the accumulated physics data in terms of a limit of $T_{1/2}^{0\nu}\,> 3\times10^{23}\,$yr for $^{100}$Mo and discuss the sensitivity of CUPID-Mo until the expected end of physics data taking in early 2020.},
doi = {10.1088/1742-6596/1468/1/012129},
url = {https://www.osti.gov/biblio/1580996}, journal = {Journal of Physics. Conference Series},
issn = {1742-6588},
number = ,
volume = 1468,
place = {United States},
year = {2020},
month = {2}
}

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