Sensitivity of the NEXT experiment to Xe-124 double electron capture

G. Martinez-Lema; M. Martinez-Vara; M. Sorel; C. Adams; V. Alvarez; L. Arazi; I. J. Arnquist; C. D. R. Azevedo; K. Bailey; F. Ballester; J. M. Benlloch-Rodriguez; F. I. G. M. Borges; N. Byrnes; S. Carcel; J. V. Carrion; S. Cebrian; E. Church; C. A. N. Conde; T. Contreras; G. Diaz; J. Diaz; M. Diesburg; J. Escada; R. Esteve; R. Felkai; A. F. M. Fernandes; L. M. P. Fernandes; P. Ferrario; A. L. Ferreira; E. D. C. Freitas; J. Generowicz; S. Ghosh; A. Goldschmidt; J. J. Gomez-Cadenas; D. Gonzalez-Diaz; R. Guenette; R. M. Gutierrez; J. Haefner; K. Hafidi; J. Hauptman; C. A. O. Henriques; J. A. Hernando Morata; P. Herrero; V. Herrero; Y. Ifergan; S. Johnston; B. J. P. Jones; M. Kekic; L. Labarga; A. Laing; P. Lebrun; N. Lopez-March; M. Losada; R. D. P. Mano; J. Martin-Albo; A. Martinez; 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; M. Querol; A. B. Redwine; J. Renner; 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; T. Stiegler; J. F. Toledo; J. Torrent; A. Uson; J. F. C. A. Veloso; R. Webb; R. Weiss-Babai; J. T. White; K. Woodruff; N. Yahlali; NEXT Collaboration

doi:10.1007/JHEP02(2021)203

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Sensitivity of the NEXT experiment to Xe-124 double electron capture

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Sensitivity of the NEXT experiment to Xe-124 double electron capture

G. Martinez-Lema, M. Martinez-Vara, M. Sorel, C. Adams, V. Alvarez, L. Arazi, I. J. Arnquist, C. D. R. Azevedo, K. Bailey, F. Ballester, …

The journal of high energy physics, Vol.2021(2), 203

02/24/2021

DOI: 10.1007/JHEP02(2021)203

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Abstract

Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite different, potentially providing a new channel to measure the hypothesized neutrinoless mode of these decays. The Standard-Model-allowed two-neutrino double electron capture (2 nu EC EC) has been predicted for a number of isotopes, but only observed in Kr-78, Ba-130 and, recently, Xe-124. The sensitivity to this decay establishes a benchmark for the ultimate experimental goal, namely the potential to discover also the lepton-number-violating neutrinoless version of this process, 0 nu EC EC. Here we report on the current sensitivity of the NEXT-White detector to Xe-124 2 nu EC EC and on the extrapolation to NEXT-100. Using simulated data for the 2 nu EC EC signal and real data from NEXT-White operated with Xe-124-depleted gas as background, we define an optimal event selection that maximizes the NEXT-White sensitivity. We estimate that, for NEXT-100 operated with xenon gas isotopically enriched with 1 kg of Xe-124 and for a 5-year run, a sensitivity to the 2 nu EC EC half-life of 6 x 10(22) y (at 90% confidence level) or better can be reached.

Physical Sciences

Physics

Physics, Particles & Fields

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Title: Subtitle: Sensitivity of the NEXT experiment to Xe-124 double electron capture
Creators: G. Martinez-Lema - Instituto de Física Corpuscular
M. Martinez-Vara - Donostia Int Phys Ctr DIPC, Paseo Manuel Lardizabal 4, E-20018 Donostia San Sebastian, Spain
M. Sorel - Instituto de Física Corpuscular
C. Adams - Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
V. Alvarez - Univ Politecn Valencia, Ctr Mixto CSIC, Inst Instrumentac Imagen Mol I3M, Valencia, Spain
L. Arazi - Ben-Gurion University of the Negev
I. J. Arnquist - Pacific Northwest Natl Lab PNNL, Richland, WA 99352 USA
C. D. R. Azevedo - University of Aveiro
K. Bailey - Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
F. Ballester - Instituto de Instrumentación para Imagen Molecular
J. M. Benlloch-Rodriguez - Donostia Int Phys Ctr DIPC, Paseo Manuel Lardizabal 4, E-20018 Donostia San Sebastian, Spain
F. I. G. M. Borges - University of Coimbra
N. Byrnes - Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
S. Carcel - Instituto de Física Corpuscular
J. V. Carrion - Instituto de Física Corpuscular
S. Cebrian - Univ Zaragoza, Ctr Astroparticulas & Fis Altas Energias CAPA, Calle Pedro Cerbuna 12, E-50009 Zaragoza, Spain
E. Church - Pacific Northwest Natl Lab PNNL, Richland, WA 99352 USA
C. A. N. Conde - University of Coimbra
T. Contreras - Harvard University
G. Diaz - Universidade de Santiago de Compostela
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 - Ben-Gurion University of the Negev
A. F. M. Fernandes - University of Coimbra
L. M. P. Fernandes - University of Coimbra
P. Ferrario - Ikerbasque
A. L. Ferreira - University of Aveiro
E. D. C. Freitas - University of Coimbra
J. Generowicz - Donostia Int Phys Ctr DIPC, Paseo Manuel Lardizabal 4, E-20018 Donostia San Sebastian, Spain
S. Ghosh - Harvard University
A. Goldschmidt - Iowa State University
J. J. Gomez-Cadenas - Ikerbasque
D. Gonzalez-Diaz - Universidade de Santiago de Compostela
R. Guenette - Harvard University
R. M. Gutierrez - Univ Antonio Narino, Ctr Invest Ciencias Basicas & Aplicadas, Carretera 3 Este 47 A-15, Bogota, Colombia
J. Haefner - Harvard University
K. Hafidi - Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
J. Hauptman - Iowa State University
C. A. O. Henriques - University of Coimbra
J. A. Hernando Morata - Universidade de Santiago de Compostela
P. Herrero - Donostia Int Phys Ctr DIPC, Paseo Manuel Lardizabal 4, E-20018 Donostia San Sebastian, Spain
V. Herrero - Instituto de Instrumentación para Imagen Molecular
Y. Ifergan - Ben-Gurion University of the Negev
S. Johnston - Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
B. J. P. Jones - Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
M. Kekic - Universidade de Santiago de Compostela
L. Labarga - Univ Autonoma Madrid, Dept Fis Teor, Campus Cantoblanco, E-28049 Madrid, Spain
A. Laing - Iowa State University
P. Lebrun - Fermi National Accelerator Laboratory
N. Lopez-March - Universitat Politècnica de València
M. Losada - Univ Antonio Narino, Ctr Invest Ciencias Basicas & Aplicadas, Carretera 3 Este 47 A-15, Bogota, Colombia
R. D. P. Mano - University of Coimbra
J. Martin-Albo - Instituto de Física Corpuscular
A. Martinez - Iowa State University
A. D. McDonald - Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
F. Monrabal - Ikerbasque
C. M. B. Monteiro - University of Coimbra
F. J. Mora - Instituto de Instrumentación para Imagen Molecular
J. Munoz Vidal - Donostia Int Phys Ctr DIPC, Paseo Manuel Lardizabal 4, E-20018 Donostia San Sebastian, Spain
P. Novella - Instituto de Física Corpuscular
D. R. Nygren - Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
B. Palmeiro - Instituto de Física Corpuscular
A. Para - Iowa State University
J. Perez - Canfranc Underground Laboratory
M. Querol - Instituto de Física Corpuscular
A. B. Redwine - Ben-Gurion University of the Negev
J. Renner - Instituto de Física Corpuscular
J. Repond - Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
S. Riordan - Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
L. Ripoll - Universitat de Girona
Y. Rodriguez Garcia - Univ Antonio Narino, Ctr Invest Ciencias Basicas & Aplicadas, Carretera 3 Este 47 A-15, Bogota, Colombia
J. Rodriguez - Instituto de Instrumentación para Imagen Molecular
L. Rogers - Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
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 Univ, Dept Phys & Astron, College Stn, TX 77843 USA
T. Stiegler - Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA
J. F. Toledo - Univ Politecn Valencia, Ctr Mixto CSIC, Inst Instrumentac Imagen Mol I3M, Valencia, Spain
J. Torrent - Donostia Int Phys Ctr DIPC, Paseo Manuel Lardizabal 4, E-20018 Donostia San Sebastian, Spain
A. Uson - Instituto de Física Corpuscular
J. F. C. A. Veloso - University of Aveiro
R. Webb - Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA
R. Weiss-Babai - Ben-Gurion University of the Negev
J. T. White - Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA
K. Woodruff - Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
N. Yahlali - Instituto de Física Corpuscular
NEXT Collaboration
Resource Type: Journal article
Publication Details: The journal of high energy physics, Vol.2021(2), 203
DOI: 10.1007/JHEP02(2021)203
ISSN: 1029-8479
eISSN: 1029-8479
Publisher: Springer Nature
Number of pages: 25
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) SEV-2014-0398; CEX2018-000867-S / Severo Ochoa Program grants Laboratorio Subterraneo de Canfranc 339787-NEXT / European Research Council (ERC); European Commission; Spanish Government Ministerio de Economia y Competitividad; 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) MDM-2016-0692 / Maria de Maeztu Program University of Texas at Arlington 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 RYC-2015-18820 / Ramon y Cajal program (Spain); Spanish Government
Language: English
Date published: 02/24/2021
Academic Unit: Physics and Astronomy
Record Identifier: 9984627220602771

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