Demonstration of the event identification capabilities of the NEXT-White detector

P. Ferrario; J. M. Benlloch-Rodriguez; G. Diaz Lopez; J. A. Hernando Morata; M. Kekic; J. Renner; A. Uson; J. J. Gomez-Cadenas; C. Adams; V. Alvarez; L. Arazi; I. J. Arnquist; C. D. R. Azevedo; K. Bailey; F. Ballester; F. I. G. M. Borges; N. Byrnes; S. Carcel; J. V. Carrion; S. Cebrian; E. Church; C. A. N. Conde; T. Contreras; J. Diaz; M. Diesburg; J. Escada; R. Esteve; R. Felkai; A. F. M. Fernandes; L. M. P. Fernandes; A. L. Ferreira; E. D. C. Freitas; J. Generowicz; S. Ghosh; A. Goldschmidt; D. Gonzalez-Diaz; R. Guenette; R. M. Gutierrez; J. Haefner; K. Hafidi; J. Hauptman; C. A. O. Henriques; P. Herrero; V. Herrero; Y. Ifergan; S. Johnston; B. J. P. Jones; L. Labarga; A. Laing; P. Lebrun; N. Lopez-March; M. Losada; R. D. P. Mano; J. Martin-Albo; A. Martinez; G. Martinez-Lema; A. D. McDonald; F. Monrabal; C. M. B. Monteiro; F. J. Mora; J. Munoz Vidal; P. Novella; D. R. Nygren; B. Palmeiro; A. Para; J. Perez; F. Psihas; M. Querol; J. Repond; S. Riordan; L. Ripoll; Y. Rodriguez Garcia; J. Rodriguez; L. Rogers; B. Romeo; C. Romo-Luque; F. P. Santos; J. M. F. dos Santos; A. Simon; C. Sofka; M. Sorel; T. Stiegler; J. F. Toledo; J. Torrent; J. F. C. A. Veloso; R. Webb; R. Weiss-Babai; J. T. White; K. Woodruff; N. Yahlali; NEXT Collaboration

doi:10.1007/JHEP10(2019)052

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Demonstration of the event identification capabilities of the NEXT-White detector

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Demonstration of the event identification capabilities of the NEXT-White detector

P. Ferrario, J. M. Benlloch-Rodriguez, G. Diaz Lopez, J. A. Hernando Morata, M. Kekic, J. Renner, A. Uson, J. J. Gomez-Cadenas, C. Adams, V. Alvarez, …

The journal of high energy physics, Vol.2019(10), pp.1-20

10/01/2019

DOI: 10.1007/JHEP10(2019)052

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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.

Physical Sciences

Physics

Physics, Particles & Fields

Science & Technology

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Title: Subtitle: Demonstration of the event identification capabilities of the NEXT-White detector
Creators: P. Ferrario - Ikerbasque
J. M. Benlloch-Rodriguez - Instituto de Física Corpuscular
G. Diaz Lopez - DIPC, Paseo Manuel Lardizabal 4, E-20018 Donostia San Sebastian, Spain
J. A. Hernando Morata - Universidade de Santiago de Compostela
M. Kekic - Universitat de València
J. Renner - Instituto de Física Corpuscular
A. Uson - Instituto de Física Corpuscular
J. J. Gomez-Cadenas - Ikerbasque
C. Adams - Argonne National Laboratory
V. Alvarez - Instituto de Física Corpuscular
L. Arazi - Ben-Gurion University of the Negev
I. J. Arnquist - Pacific Northwest National Laboratory
C. D. R. Azevedo - University of Aveiro
K. Bailey - Argonne National Laboratory
F. Ballester - Instituto de Instrumentación para Imagen Molecular
F. I. G. M. Borges - University of Coimbra
N. Byrnes - The University of Texas at Arlington
S. Carcel - Universitat de València
J. V. Carrion - Instituto de Física Corpuscular
S. Cebrian - Universidad de Zaragoza
E. Church - Pacific Northwest National Laboratory
C. A. N. Conde - University of Coimbra
T. Contreras - Harvard University
J. Diaz - Instituto de Física Corpuscular
M. Diesburg - Fermi National Accelerator Laboratory
J. Escada - University of Coimbra
R. Esteve - Instituto de Instrumentación para Imagen Molecular
R. Felkai - Instituto de Física Corpuscular
A. F. M. Fernandes - University of Coimbra
L. M. P. Fernandes - University of Coimbra
A. L. Ferreira - University of Aveiro
E. D. C. Freitas - University of Coimbra
J. Generowicz - Donostia International Physics Center
S. Ghosh - Harvard University
A. Goldschmidt - Lawrence Berkeley National Laboratory
D. Gonzalez-Diaz - Universidade de Santiago de Compostela
R. Guenette - Harvard University
R. M. Gutierrez - Universidad Antonio Nariño
J. Haefner - Harvard University
K. Hafidi - Argonne National Laboratory
J. Hauptman - Iowa State University
C. A. O. Henriques - University of Coimbra
P. Herrero - Donostia International Physics Center
V. Herrero - Instituto de Instrumentación para Imagen Molecular
Y. Ifergan - Ben-Gurion University of the Negev
S. Johnston - Argonne National Laboratory
B. J. P. Jones - The University of Texas at Arlington
L. Labarga - Universidad Autónoma de Madrid
A. Laing - The University of Texas at Arlington
P. Lebrun - Fermi National Accelerator Laboratory
N. Lopez-March - Instituto de Física Corpuscular
M. Losada - Universidad Antonio Nariño
R. D. P. Mano - University of Coimbra
J. Martin-Albo - Harvard University
A. Martinez - Donostia International Physics Center
G. Martinez-Lema - Instituto de Física Corpuscular
A. D. McDonald - The University of Texas at Arlington
F. Monrabal - Donostia International Physics Center
C. M. B. Monteiro - University of Coimbra
F. J. Mora - Instituto de Instrumentación para Imagen Molecular
J. Munoz Vidal - Instituto de Física Corpuscular
P. Novella - Instituto de Física Corpuscular
D. R. Nygren - The University of Texas at Arlington
B. Palmeiro - Instituto de Física Corpuscular
A. Para - Fermi National Accelerator Laboratory
J. Perez - Canfranc Underground Laboratory
F. Psihas - The University of Texas at Arlington
M. Querol - Instituto de Física Corpuscular
J. Repond - Argonne National Laboratory
S. Riordan - Argonne National Laboratory
L. Ripoll - Universitat de Girona
Y. Rodriguez Garcia - Univ Antonio Narino, Ctr Invest Ciencias Basicas & Aplicadas, Sede Circunvalar, Carretera 3 Este 47 A-15, Bogota, Colombia
J. Rodriguez - Instituto de Física Corpuscular
L. Rogers - The University of Texas at Arlington
B. Romeo - Donostia International Physics Center
C. Romo-Luque - Instituto de Física Corpuscular
F. P. Santos - University of Coimbra
J. M. F. dos Santos - University of Coimbra
A. Simon - Ben-Gurion University of the Negev
C. Sofka - Texas A&M University
M. Sorel - Instituto de Física Corpuscular
T. Stiegler - Texas A&M University
J. F. Toledo - Instituto de Instrumentación para Imagen Molecular
J. Torrent - Donostia International Physics Center
J. F. C. A. Veloso - University of Aveiro
R. Webb - Texas A&M University
R. Weiss-Babai - Ben-Gurion University of the Negev
J. T. White - Texas A&M University
K. Woodruff - The University of Texas at Arlington
N. Yahlali - Instituto de Física Corpuscular
NEXT 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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