Abstract

The CONNIE Experiment (Coherent Neutrino Nucleus Interaction Experiment) is currently collecting reactor neutrino data to search for the undiscovered standard model process of coherent neutrino-nucleus scattering (CNNS). The detector is composed of a silicon target of thick, fully-depleted, low-noise CCD detectors. Results from data collected in 2015 indicate backgrounds are controlled, and allow an estimate of sensitivity to be presented for a larger scale detector. A 2016 upgrade, adding additional target mass, and reducing readout noise, has been performed, increasing the total yield of signal events by a factor of 30, and already yielding science-quality data. Low-energy nuclear calibrations have been performed, enabling calibration down to the device energy threshold. An estimate of the sensitivity expected for measuring the coherent neutrino process is presented. Future prospects with improved detector energy thresholds are estimated.

Details

Title
Results from 2015 and the 2016 upgrade of the CONNIE experiment for detecting coherent neutrino nucleus scattering
Author
Aguilar-Arevalo, A 1 ; Bertou, X 2 ; Bonifazi, C 3 ; Butner, M 4 ; Cancelo, G 4 ; A Castaneda Vazquez 1 ; B Cervantes Vergara 1 ; Chavez, C R 5 ; Da Motta, H 6 ; JC D’Olivo 1 ; J Dos Anjos 6 ; Estrada, J 4 ; G Fernandez Moroni 7 ; Ford, R 4 ; Foguel, A 8 ; KP Hernandez Torres 1 ; Izraelevitch, F 4 ; Kavner, A 9 ; Kilminster, B 10 ; Kuk, K 4 ; Lima, HP, Jr 6 ; Makler, M 6 ; Molina, J 5 ; Moro, J M 11 ; Paolini, EE 12 ; Sarkis, Y 1 ; M Sofo Haro 2 ; Tiffenberg, J 4 ; Wagner, S 13 

 Universidad Nacional Autónoma de México, Ciudad de México, México 
 Centro Atomico Bariloche - Instituto Balseiro, CNEA/CONICET, Argentina 
 Universidade Federal do Rio de Janeiro, Instituto de Física, Rio de Janeiro, Brazil 
 Fermi National Accelerator Laboratory, Batavia, IL, U.S.A. 
 Facultad de Ingeniería - Universidad Nacional de Asuncion, Paraguay 
 Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil 
 Departamento de Ingeniera Electrica y de Computadores, Universidad Nacional del Sur, Bahía Blanca, Argentina; Instituto de Investigaciones en Ingeniería Electrica “Alfredo Desages”, CONICET - Universidad Nacional del Sur, Bahía Blanca, Argentina 
 Universidade Federal do Rio de Janeiro, Instituto de Física, Rio de Janeiro, Brazil; Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil 
 University of Michigan, Ann Arbor, MI, U.S.A. 
10  Universitat Zurich Physik Institut, Zurich, Switzerland 
11  Depto. de Ingeniería, Universidad Nacional del Sur, Bahía Blanca, Argentina 
12  Departamento de Ingeniera Electrica y de Computadores, Universidad Nacional del Sur, Bahía Blanca, Argentina; Comisión de Investigaciones Científicas Provincia Buenos Aires, La Plata, Argentina 
13  Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil; Pontificia Universidade Catolica, Rio de Janeiro, Brazil 
Publication year
2019
Publication date
Apr 2019
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2566145856
Copyright
© 2019. 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.