Journal of High Energy Physics (Oct 2019)
Demonstration of the event identification capabilities of the NEXT-White detector
- The NEXT collaboration,
- P. Ferrario,
- J. M. Benlloch-Rodríguez,
- G. Díaz López,
- J. A. Hernando Morata,
- M. Kekic,
- J. Renner,
- A. Usón,
- J. J. Gómez-Cadenas,
- C. Adams,
- V. Álvarez,
- L. Arazi,
- I. J. Arnquist,
- C. D. R Azevedo,
- K. Bailey,
- F. Ballester,
- F. I. G. M. Borges,
- N. Byrnes,
- S. Cárcel,
- J. V. Carrión,
- S. Cebrían,
- E. Church,
- C. A. N. Conde,
- T. Contreras,
- J. Díaz,
- 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. González-Díaz,
- R. Guenette,
- R. M. Gutíerrez,
- 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. López-March,
- M. Losada,
- R. D. P. Mano,
- J. Martín-Albo,
- A. Martínez,
- G. Martínez-Lema,
- A. D. McDonald,
- F. Monrabal,
- C. M. B. Monteiro,
- F. J. Mora,
- J. Muñoz Vidal,
- P. Novella,
- D. R. Nygren,
- B. Palmeiro,
- A. Para,
- J. Pérez,
- F. Psihas,
- M. Querol,
- J. Repond,
- S. Riordan,
- L. Ripoll,
- Y. Rodríguez García,
- J. Rodríguez,
- L. Rogers,
- B. Romeo,
- C. Romo-Luque,
- F. P. Santos,
- J. M. F. dos Santos,
- A. Simón,
- 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
Affiliations
- The NEXT collaboration
- P. Ferrario
- Ikerbasque, Basque Foundation for Science
- J. M. Benlloch-Rodríguez
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- G. Díaz López
- Donostia International Physics Center (DIPC)
- J. A. Hernando Morata
- Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela
- M. Kekic
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- J. Renner
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- A. Usón
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- J. J. Gómez-Cadenas
- Ikerbasque, Basque Foundation for Science
- C. Adams
- Argonne National Laboratory
- V. Álvarez
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- L. Arazi
- Nuclear Engineering Unit, Faculty of Engineering Sciences, Ben-Gurion University of the Negev
- I. J. Arnquist
- Pacific Northwest National Laboratory (PNNL)
- C. D. R Azevedo
- Institute of Nanostructures, Nanomodelling and Nanofabrication (i3N), Universidade de Aveiro
- K. Bailey
- Argonne National Laboratory
- F. Ballester
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC — Universitat Politécnica de Valéncia
- F. I. G. M. Borges
- LIP, Department of Physics, University of Coimbra
- N. Byrnes
- Department of Physics, University of Texas at Arlington
- S. Cárcel
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- J. V. Carrión
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- S. Cebrían
- Laboratorio de Física Nuclear y Astropartículas, Universidad de Zaragoza
- E. Church
- Pacific Northwest National Laboratory (PNNL)
- C. A. N. Conde
- LIP, Department of Physics, University of Coimbra
- T. Contreras
- Department of Physics, Harvard University
- J. Díaz
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- M. Diesburg
- Fermi National Accelerator Laboratory
- J. Escada
- LIP, Department of Physics, University of Coimbra
- R. Esteve
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC — Universitat Politécnica de Valéncia
- R. Felkai
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- A. F. M. Fernandes
- LIBPhys, Physics Department, University of Coimbra
- L. M. P. Fernandes
- LIBPhys, Physics Department, University of Coimbra
- A. L. Ferreira
- Institute of Nanostructures, Nanomodelling and Nanofabrication (i3N), Universidade de Aveiro
- E. D. C. Freitas
- LIBPhys, Physics Department, University of Coimbra
- J. Generowicz
- Donostia International Physics Center (DIPC)
- S. Ghosh
- Department of Physics, Harvard University
- A. Goldschmidt
- Lawrence Berkeley National Laboratory (LBNL)
- D. González-Díaz
- Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela
- R. Guenette
- Department of Physics, Harvard University
- R. M. Gutíerrez
- Centro de Investigación en Ciencias Básicas y Aplicadas, Universidad Antonio Nariño
- J. Haefner
- Department of Physics, Harvard University
- K. Hafidi
- Argonne National Laboratory
- J. Hauptman
- Department of Physics and Astronomy, Iowa State University
- C. A. O. Henriques
- LIBPhys, Physics Department, University of Coimbra
- P. Herrero
- Donostia International Physics Center (DIPC)
- V. Herrero
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC — Universitat Politécnica de Valéncia
- Y. Ifergan
- Nuclear Engineering Unit, Faculty of Engineering Sciences, Ben-Gurion University of the Negev
- S. Johnston
- Argonne National Laboratory
- B. J. P. Jones
- Department of Physics, University of Texas at Arlington
- L. Labarga
- Departamento de Física Teórica, Universidad Autónoma de Madrid
- A. Laing
- Department of Physics, University of Texas at Arlington
- P. Lebrun
- Fermi National Accelerator Laboratory
- N. López-March
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- M. Losada
- Centro de Investigación en Ciencias Básicas y Aplicadas, Universidad Antonio Nariño
- R. D. P. Mano
- LIBPhys, Physics Department, University of Coimbra
- J. Martín-Albo
- Department of Physics, Harvard University
- A. Martínez
- Donostia International Physics Center (DIPC)
- G. Martínez-Lema
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- A. D. McDonald
- Department of Physics, University of Texas at Arlington
- F. Monrabal
- Donostia International Physics Center (DIPC)
- C. M. B. Monteiro
- LIBPhys, Physics Department, University of Coimbra
- F. J. Mora
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC — Universitat Politécnica de Valéncia
- J. Muñoz Vidal
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- P. Novella
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- D. R. Nygren
- Department of Physics, University of Texas at Arlington
- B. Palmeiro
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- A. Para
- Fermi National Accelerator Laboratory
- J. Pérez
- Laboratorio Subterráneo de Canfranc
- F. Psihas
- Department of Physics, University of Texas at Arlington
- M. Querol
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- J. Repond
- Argonne National Laboratory
- S. Riordan
- Argonne National Laboratory
- L. Ripoll
- Escola Politécnica Superior, Universitat de Girona
- Y. Rodríguez García
- Centro de Investigación en Ciencias Básicas y Aplicadas, Universidad Antonio Nariño
- J. Rodríguez
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC — Universitat Politécnica de Valéncia
- L. Rogers
- Department of Physics, University of Texas at Arlington
- B. Romeo
- Donostia International Physics Center (DIPC)
- C. Romo-Luque
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- F. P. Santos
- LIP, Department of Physics, University of Coimbra
- J. M. F. dos Santos
- LIBPhys, Physics Department, University of Coimbra
- A. Simón
- Nuclear Engineering Unit, Faculty of Engineering Sciences, Ben-Gurion University of the Negev
- C. Sofka
- Department of Physics and Astronomy, Texas A&M University
- M. Sorel
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- T. Stiegler
- Department of Physics and Astronomy, Texas A&M University
- J. F. Toledo
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC — Universitat Politécnica de Valéncia
- J. Torrent
- Donostia International Physics Center (DIPC)
- J. F. C. A. Veloso
- Institute of Nanostructures, Nanomodelling and Nanofabrication (i3N), Universidade de Aveiro
- R. Webb
- Department of Physics and Astronomy, Texas A&M University
- R. Weiss-Babai
- Nuclear Engineering Unit, Faculty of Engineering Sciences, Ben-Gurion University of the Negev
- J. T. White
- Department of Physics and Astronomy, Texas A&M University
- K. Woodruff
- Department of Physics, University of Texas at Arlington
- N. Yahlali
- Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València
- DOI
- https://doi.org/10.1007/JHEP10(2019)052
- Journal volume & issue
-
Vol. 2019,
no. 10
pp. 1 – 20
Abstract
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 228Th 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.
Keywords
