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Title: Double-beta decay investigation with highly pure enriched $$^{82}$$Se for the LUCIFER experiment

Journal Article · · European Physical Journal. C, Particles and Fields
 [1];  [2];  [3];  [4];  [2];  [5];  [5];  [6];  [7];  [2];  [5];  [8];  [9];  [10];  [5];  [11];  [10];  [12];  [6];  [11] more »;  [10];  [9];  [2];  [10];  [9];  [9];  [10];  [6];  [6] « less
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Sapienza Univ. di Roma, Rome (Italy); INFN, Rome (Italy)
  3. Univ. di Pavia, Pavia (Italy); INFN, Pavia (Italy)
  4. Sapienza Univ. di Roma, Rome (Italy); Princeton Univ., Princeton, NJ (United States)
  5. Univ. di Milano-Bicocca, Milan (Italy); INFN, Milan (Italy)
  6. INFN, Rome (Italy)
  7. INFN, Genoa (Italy); Univ. di Genova, Genoa (Italy)
  8. Centre de Spectrometrie de Masse, Orsay (France)
  9. INFN, Milan (Italy)
  10. INFN, Assergi (L'Aquila) (Italy)
  11. Gran Sasso Science Institute, L'Aquila (Italy)
  12. CEA, Gif-sur-Yvette (France)

The LUCIFER project aims at deploying the first array of enriched scintillating bolometers for the investigation of neutrinoless double-beta decay of 82Se. The matrix which embeds the source is an array of ZnSe crystals, where enriched 82Se is used as decay isotope. The radiopurity of the initial components employed for manufacturing crystals, that can be operated as bolometers, is crucial for achieving a null background level in the region of interest for double-beta decay investigations. In this work, we evaluated the radioactive content in 2.5 kg of 96.3 % enriched 82Se metal, measured with a high-purity germanium detector at the Gran Sasso deep underground laboratory. The limits on internal contaminations of primordial decay chain elements of 232Th, 238U and 235U are respectively: <61, <110 and <74 μBq/kg at 90 % C.L. The extremely low-background conditions in which the measurement was carried out and the high radiopurity of the 82Se allowed us to establish the most stringent lower limits on the half-lives of the double-beta decay of 82Se to 0+1, 2+2 and 2+1 excited states of 82Kr of 3.4•1022, 1.3•1022 and 1.0•1022 y, respectively, with a 90 % C.L.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1405288
Journal Information:
European Physical Journal. C, Particles and Fields, Vol. 75, Issue 12; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

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Cited By (20)

Double beta decay to the excited states: Review
  • Barabash, A. S.
  • PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF GLOBAL NETWORK FOR INNOVATIVE TECHNOLOGY AND AWAM INTERNATIONAL CONFERENCE IN CIVIL ENGINEERING (IGNITE-AICCE’17): Sustainable Technology And Practice For Infrastructure and Community Resilience, AIP Conference Proceedings https://doi.org/10.1063/1.5007627
conference January 2017
Characterization of high-purity 82 Se-enriched ZnSe for double-beta decay bolometer/scintillation detectors journal February 2018
Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review journal March 2017
Extracting Majorana properties from strong bounds on neutrinoless double beta decay journal February 2017
Final Result of CUPID-0 Phase-I in the Search for the Se 82 Neutrinoless Double- β Decay journal July 2019
Evidence of Single State Dominance in the Two-Neutrino Double- β Decay of Se 82 with CUPID-0 journal December 2019
First array of enriched Zn $$^{82}$$ 82 Se bolometers to search for double beta decay journal July 2016
CUPID-0: the first array of enriched scintillating bolometers for 0 $$\nu \beta \beta $$ ν β β decay investigations journal May 2018
Analysis of cryogenic calorimeters with light and heat read-out for double beta decay searches journal September 2018
Search of the neutrino-less double beta decay of $$^{82}$$ 82 Se into the excited states of $$^{82}$$ 82 Kr with CUPID-0 journal November 2018
Background model of the CUPID-0 experiment journal July 2019
Screening of materials with high purity germanium detectors at the Laboratori Nazionali del Gran Sasso journal October 2017
Low background techniques in bolometers for double-beta decay search journal October 2017
Main features of detectors and isotopes to investigate double beta decay with increased sensitivity journal March 2018
Result on the Neutrinoless Double Beta Decay Search of 82Se with the CUPID-0 Experiment journal December 2018
Double Beta Decay to the Excited States: Review text January 2017
Low background techniques in bolometers for double-beta decay search text January 2017
Main features of detectors and isotopes to investigate double beta decay with increased sensitivity text January 2018
Background Model of the CUPID-0 Experiment text January 2019
Neutrinoless Double Beta Decay with $^{82}$SeF$_6$ and Direct Ion Imaging text January 2018

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