Mitigation of backgrounds from cosmogenic 137Xe in xenon gas experiments using 3He neutron capture

Rogers, L. ; Jones, B.J.P. ; Laing, A. ; Pingulkar, S. ; Smithers, B. ; Woodruff, K. ; Adams, C. ; Lvarez, V. ; Arazi, L. ; Arnquist, I.J. ; Azevedo, C.D.R. ; Bailey, K. ; Ballester, F. ; Benlloch-Rodríguez, J.M. ; Borges, F.I.G.M. ; Byrnes, N. ; Cárcel, S. ; Carrión, J.V. ; Cebrián, S. (Universidad de Zaragoza) ; Church, E. ; Conde, C.A.N. ; Contreras, T. ; Díaz, G. ; Díaz, J. ; Diesburg, M. ; Dingler, R. ; Escada, J. ; Esteve, R. ; Felkai, R. ; Fernandes, A.F.M. ; Fernandes, L.M.P. ; Ferrario, P. ; Ferreira, A.L. ; Freitas, E.D.C. ; Generowicz, J. ; Ghosh, S. ; Goldschmidt, A. ; Gómez-Cadenas, J.J. ; González-Díaz, D. ; Guenette, R. ; Gutiérrez, R.M. ; Haefner, J. ; Hafidi, K. ; Hauptman, J. ; Henriques, C.A.O. ; Morata, J.A.H. ; Herrero, P. ; Herrero, V. ; Ifergan, Y. ; Johnston, S. ; Kekic, M. ; Labarga, L. ; 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. ; Vidal, J.M. ; Novella, P. ; Nygren, D.R. ; Palmeiro, B. ; Para, A. ; Pérez, J. ; Querol, M. ; Redwine, A.B. ; Renner, J. ; Repond, J. ; Riordan, S. ; Ripoll, L. ; García, Y.R. ; Rodríguez, J. ; 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. ; Usón, A. ; Veloso, J.F.C.A. ; Webb, R. ; Weiss-Babai, R. ; White, J.T. ; Yahlali, N.

Resumen: 136Xe is used as the target medium for many experiments searching for 0¿ßß. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutrons causing activation of detector materials. A potential background that is difficult to veto using muon tagging comes in the form of 137Xe created by the capture of neutrons on 136Xe. This isotope decays via beta decay with a half-life of 3.8 min and a Q ß of ~4.16 MeV. This work proposes and explores the concept of adding a small percentage of 3He to xenon as a means to capture thermal neutrons and reduce the number of activations in the detector volume. When using this technique we find the contamination from 137Xe activation can be reduced to negligible levels in tonne and multi-tonne scale high pressure gas xenon neutrinoless double beta decay experiments running at any depth in an underground laboratory.

Idioma: Inglés

DOI: 10.1088/1361-6471/ab8915

Año: 2020

Publicado en: Journal of Physics G: Nuclear and Particle Physics 47, 7 (2020), 075001 [17 pp]
ISSN: 0954-3899

Factor impacto JCR: 3.045 (2020)

Categ. JCR: PHYSICS, PARTICLES & FIELDS rank: 10 / 29 = 0.345 (2020) - Q2 - T2
Categ. JCR: PHYSICS, NUCLEAR rank: 6 / 19 = 0.316 (2020) - Q2 - T1

Factor impacto SCIMAGO: 1.387 - Nuclear and High Energy Physics (Q1)

Financiación: info:eu-repo/grantAgreement/EC/FP7/339787/EU/Towards the NEXT generation of bb0nu experimets/NEXT
Financiación: info:eu-repo/grantAgreement/EC/H2020/674896/EU/The Elusives Enterprise: Asymmetries of the Invisible Universe/ELUSIVES
Financiación: info:eu-repo/grantAgreement/EC/H2020/690575/EU/InvisiblesPlus/InvisiblesPlus
Financiación: info:eu-repo/grantAgreement/EC/H2020/740055/EU/Molecule for low diffusion TPCs for rare event searches/MELODIC
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2014-53371-C04
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MDM-2016-0692
Financiación: info:eu-repo/grantAgreement/ES/MINECO/SEV-2014-0398

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Física Atóm.Molec.y Nucl. (Dpto. Física Teórica)