86359 20200716101554.0 doi 10.1007/JHEP10(2019)052 sideral 114951 ART-2019-114951 eng Ferrario P. Demonstration of the event identification capabilities of the NEXT-White detector 2019 Access copy available to the general public Unrestricted 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. [Figure not available: see fulltext. info:eu-repo/grantAgreement/EC/FP7/339787/EU/Towards the NEXT generation of bb0nu experimets/NEXT info:eu-repo/grantAgreement/ES/MICINN/RTI2018-095979 info:eu-repo/grantAgreement/ES/MINECO/FIS2014-53371-C04 info:eu-repo/grantAgreement/ES/MINECO/MDM-2016-0692 info:eu-repo/grantAgreement/ES/MINECO/SEV-2014-0398 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 5.875 2019 PHYSICS, PARTICLES & FIELDS 4 / 29 = 0.138 2019 Q1 T1 0.948 2019 Nuclear and High Energy Physics 2019 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Benlloch-Rodríguez J.M. Díaz López G. Hernando Morata J.A. Kekic M. Renner J. Usón A. Gómez-Cadenas J.J. Adams C. Álvarez V. Arazi L. Arnquist I.J. Azevedo C.D.R. Bailey K. Ballester F. Borges F.I.G.M. Byrnes N. Cárcel S. Carrión J.V. (orcid)0000-0002-6948-5101 Cebrían S. Universidad de Zaragoza Church E. Conde C.A.N. Contreras T. Díaz J. Diesburg M. Escada J. Esteve R. Felkai R. Fernandes A.F.M. Fernandes L.M.P. Ferreira A.L. Freitas E.D.C. Generowicz J. Ghosh S. Goldschmidt A. González-Díaz D. Guenette R. Gutíerrez R.M. Haefner J. Hafidi K. Hauptman J. Henriques C.A.O. Herrero P. Herrero V. Ifergan Y. Johnston S. Jones B.J.P. Labarga L. Laing A. Lebrun P. López-March N. Losada M. Mano R.D.P. Martín-Albo J. Martínez A. Martínez-Lema G. McDonald A.D. Monrabal F. Monteiro C.M.B. Mora F.J. Muñoz Vidal J. Novella P. Nygren D.R. Palmeiro B. Para A. Pérez J. Psihas F. Querol M. Repond J. Riordan S. Ripoll L. Rodríguez García Y. Rodríguez J. Rogers L. Romeo B. Romo-Luque C. Santos F.P. dos Santos J.M.F. Simón A. Sofka C. Sorel M. Stiegler T. Toledo J.F. Torrent J. Veloso J.F.C.A. Webb R. Weiss-Babai R. White J.T. Woodruff K. Yahlali N. The NEXT collaboration 2004 390 Universidad de Zaragoza Dpto. Física Teórica Área Física Atóm.Molec.y Nucl. 2019, 10 (2019), 52 [20 pp.] J. high energy phys. Journal of High Energy Physics 1126-6708 529224 http://zaguan.unizar.es/record/86359/files/texto_completo.pdf Versión publicada 77411 http://zaguan.unizar.es/record/86359/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:86359 articulos driver 2020-07-16-09:48:16 ARTICLE