Journal article
Demonstration of the event identification capabilities of the NEXT-White detector
The journal of high energy physics, Vol.2019(10), pp.1-20
10/01/2019
DOI: 10.1007/JHEP10(2019)052
Abstract
In experiments searching for neutrinoless double-beta decay, the possibility of identifying the two emitted electrons is a powerful tool in rejecting background events and therefore improving the overall sensitivity of the experiment. In this paper we present the first measurement of the efficiency of a cut based on the different event signatures of double and single electron tracks, using the data of the NEXT-White detector, the first detector of the NEXT experiment operating underground. Using a Th-228 calibration source to produce signal-like and background-like events with energies near 1.6 MeV, a signal efficiency of 71.6 +/- 1.5(stat) +/- 0.3(sys) % for a background acceptance of 20.6 +/- 0.4(stat) +/- 0.3(sys)% is found, in good agreement with Monte Carlo simulations. An extrapolation to the energy region of the neutrinoless double beta decay by means of Monte Carlo simulations is also carried out, and the results obtained show an improvement in background rejection over those obtained at lower energies.
Details
- Title: Subtitle
- Demonstration of the event identification capabilities of the NEXT-White detector
- Creators
- P. Ferrario - IkerbasqueJ. M. Benlloch-Rodriguez - Instituto de Física CorpuscularG. Diaz Lopez - DIPC, Paseo Manuel Lardizabal 4, E-20018 Donostia San Sebastian, SpainJ. A. Hernando Morata - Universidade de Santiago de CompostelaM. Kekic - Universitat de ValènciaJ. Renner - Instituto de Física CorpuscularA. Uson - Instituto de Física CorpuscularJ. J. Gomez-Cadenas - IkerbasqueC. Adams - Argonne National LaboratoryV. Alvarez - Instituto de Física CorpuscularL. Arazi - Ben-Gurion University of the NegevI. J. Arnquist - Pacific Northwest National LaboratoryC. D. R. Azevedo - University of AveiroK. Bailey - Argonne National LaboratoryF. Ballester - Instituto de Instrumentación para Imagen MolecularF. I. G. M. Borges - University of CoimbraN. Byrnes - The University of Texas at ArlingtonS. Carcel - Universitat de ValènciaJ. V. Carrion - Instituto de Física CorpuscularS. Cebrian - Universidad de ZaragozaE. Church - Pacific Northwest National LaboratoryC. A. N. Conde - University of CoimbraT. Contreras - Harvard UniversityJ. Diaz - Instituto de Física CorpuscularM. Diesburg - Fermi National Accelerator LaboratoryJ. Escada - University of CoimbraR. Esteve - Instituto de Instrumentación para Imagen MolecularR. Felkai - Instituto de Física CorpuscularA. F. M. Fernandes - University of CoimbraL. M. P. Fernandes - University of CoimbraA. L. Ferreira - University of AveiroE. D. C. Freitas - University of CoimbraJ. Generowicz - Donostia International Physics CenterS. Ghosh - Harvard UniversityA. Goldschmidt - Lawrence Berkeley National LaboratoryD. Gonzalez-Diaz - Universidade de Santiago de CompostelaR. Guenette - Harvard UniversityR. M. Gutierrez - Universidad Antonio NariñoJ. Haefner - Harvard UniversityK. Hafidi - Argonne National LaboratoryJ. Hauptman - Iowa State UniversityC. A. O. Henriques - University of CoimbraP. Herrero - Donostia International Physics CenterV. Herrero - Instituto de Instrumentación para Imagen MolecularY. Ifergan - Ben-Gurion University of the NegevS. Johnston - Argonne National LaboratoryB. J. P. Jones - The University of Texas at ArlingtonL. Labarga - Universidad Autónoma de MadridA. Laing - The University of Texas at ArlingtonP. Lebrun - Fermi National Accelerator LaboratoryN. Lopez-March - Instituto de Física CorpuscularM. Losada - Universidad Antonio NariñoR. D. P. Mano - University of CoimbraJ. Martin-Albo - Harvard UniversityA. Martinez - Donostia International Physics CenterG. Martinez-Lema - Instituto de Física CorpuscularA. D. McDonald - The University of Texas at ArlingtonF. Monrabal - Donostia International Physics CenterC. M. B. Monteiro - University of CoimbraF. J. Mora - Instituto de Instrumentación para Imagen MolecularJ. Munoz Vidal - Instituto de Física CorpuscularP. Novella - Instituto de Física CorpuscularD. R. Nygren - The University of Texas at ArlingtonB. Palmeiro - Instituto de Física CorpuscularA. Para - Fermi National Accelerator LaboratoryJ. Perez - Canfranc Underground LaboratoryF. Psihas - The University of Texas at ArlingtonM. Querol - Instituto de Física CorpuscularJ. Repond - Argonne National LaboratoryS. Riordan - Argonne National LaboratoryL. Ripoll - Universitat de GironaY. Rodriguez Garcia - Univ Antonio Narino, Ctr Invest Ciencias Basicas & Aplicadas, Sede Circunvalar, Carretera 3 Este 47 A-15, Bogota, ColombiaJ. Rodriguez - Instituto de Física CorpuscularL. Rogers - The University of Texas at ArlingtonB. Romeo - Donostia International Physics CenterC. Romo-Luque - Instituto de Física CorpuscularF. P. Santos - University of CoimbraJ. M. F. dos Santos - University of CoimbraA. Simon - Ben-Gurion University of the NegevC. Sofka - Texas A&M UniversityM. Sorel - Instituto de Física CorpuscularT. Stiegler - Texas A&M UniversityJ. F. Toledo - Instituto de Instrumentación para Imagen MolecularJ. Torrent - Donostia International Physics CenterJ. F. C. A. Veloso - University of AveiroR. Webb - Texas A&M UniversityR. Weiss-Babai - Ben-Gurion University of the NegevJ. T. White - Texas A&M UniversityK. Woodruff - The University of Texas at ArlingtonN. Yahlali - Instituto de Física CorpuscularNEXT Collaboration
- Resource Type
- Journal article
- Publication Details
- The journal of high energy physics, Vol.2019(10), pp.1-20
- DOI
- 10.1007/JHEP10(2019)052
- ISSN
- 1029-8479
- eISSN
- 1029-8479
- Publisher
- Springer Nature
- Number of pages
- 20
- Grant note
- PTDC/FIS-NUC/2525/2014; UID/FIS/04559/2013; PD/BD/105921/2014; SFRH/BPD/109180/2015; SFRH/BPD/76842/2011 / Portuguese FCT; Fundacao para a Ciencia e a Tecnologia (FCT) Ministerio de Economia y Competitividad; Spanish Government MDM-2016-0692 / Maria de Maetzu Program; Spanish Government FIS2014-53371-C04; RTI2018-095979 / Ministerio de Ciencia, Innovacion y Universidades of Spain; Spanish Government PROMETEO/2016/120; SEJI/2017/011 / GVA of Spain DE-AC02-06CH11357; DE-AC02-07CH11359; DE-FG02-13ER42020; DE-SC0019223/DE-SC0019054 / U.S. Department of Energy; United States Department of Energy (DOE) University of Texas at Arlington 339787NEXT / European Research Council (ERC); European Commission; Spanish Government PD/BD/105921/2014; PTDC/FIS-NUC/2525/2014 / Fundao para a Cincia e a Tecnologia; Fundacao para a Ciencia e a Tecnologia (FCT) 674896; 690575; 740055 / European Union's Framework Programme for Research and Innovation Horizon 2020 (2014-2020) under the Marie Sklodowska-Curie Grant; Marie Curie Actions SEV-2014-0398 / Severo Ochoa Program; Spanish Government RYC-2015-18820 / Ramon y Cajal program (Spain); Spanish Government
- Language
- English
- Date published
- 10/01/2019
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627284202771
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