Abstract

The COSINUS (Cryogenic Observatory for SIgnals seen in Next-generation Underground Searches) project aims to provide a model independent cross-check of the long-standing DAMA/LIBRA claim on the observation of dark matter, by using the same target material (NaI) with a different experimental approach. The use of sodium iodide (NaI) crystals, operated at cryogenic temperature as scintillating calorimeters, provides both a low energy threshold for nuclear recoil events as expected from dark matter particle interactions, and the possibility to perform particle discrimination. Indeed, the dual read-out of phonon and light allows to perform signal-to-background discrimination on an event-by-event basis, a unique feature in comparison to other NaI-based dark matter searches. In this paper we will discuss in detail the COSINUS detector concept and we will present the performances of our first prototypes together with the results of the first measurements.

Details

Title
A NaI-based cryogenic scintillating calorimeter: status and results of the COSINUS project
Author
N Di Marco 1 ; Angloher, G 2 ; Carniti, P 3 ; Cassina, L 3 ; Gironi, L 3 ; Gotti, C 3 ; Mancuso, M 2 ; Pagnanini, L 4 ; Pessina, G 5 ; Petricca, F 2 ; Pirro, S 1 ; Pröbst, F 2 ; Puig, R 6 ; Reindl, F 6 ; Schäffner, K 4 ; Schieck, J 6 ; Stahlberg, M 6 

 INFN - Laboratori Nazionali del Gran Sasso, I-67010 Assergi - Italy 
 Max-Planck-Institut für Physik, D-80805 München - Germany 
 INFN - Sezione di Milano Bicocca, I-20126 Milano - Italy; Dipartimento di Fisica, Università di Milano-Bicocca, I-20126 Milano - Italy 
 Gran Sasso Science Institute, I-67100 L’Aquila - Italy; INFN - Laboratori Nazionali del Gran Sasso, I-67010 Assergi - Italy 
 INFN - Sezione di Milano Bicocca, I-20126 Milano - Italy 
 Institut fuür Hochenergiephysik der OÖAW, A-1050 Wien - Austria; Atominstitut, Technical University Vienna, A-1020 Wien - Austria 
Publication year
2018
Publication date
Jul 2018
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2572379372
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.