Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment

Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM

Detalles Bibliográficos
Autores: Aker, M., Díaz Barrero, Deseada, López Poyato, J. Manuel, Telle, Helmut H.
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/704628
Acceso en línea:http://hdl.handle.net/10486/704628
https://dx.doi.org/10.1140/epjc/s10052-021-09325-z
Access Level:acceso abierto
Palabra clave:Neutrino Mass
Tritium
Electron Capture
Química
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spelling Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experimentAker, M.Díaz Barrero, DeseadaLópez Poyato, J. ManuelTelle, Helmut H.Neutrino MassTritiumElectron CaptureQuímicaArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMThe KATRIN experiment is designed for a direct and model-independent determination of the effective electron anti-neutrino mass via a high-precision measurement of the tritium β-decay endpoint region with a sensitivity on mν of 0.2 eV /c 2 (90% CL). For this purpose, the β-electrons from a high-luminosity windowless gaseous tritium source traversing an electrostatic retarding spectrometer are counted to obtain an integral spectrum around the endpoint energy of 18.6 keV. A dominant systematic effect of the response of the experimental setup is the energy loss of β -electrons from elastic and inelastic scattering off tritium molecules within the source. We determined the energy-loss function in-situ with a pulsed angular-selective and monoenergetic photoelectron source at various tritium-source densities. The data was recorded in integral and differential modes; the latter was achieved by using a novel time-of-flight technique. We developed a semi-empirical parametrization for the energy-loss function for the scattering of 18.6-keV electrons from hydrogen isotopologs. This model was fit to measurement data with a 95% T 2 gas mixture at 30 K, as used in the first KATRIN neutrino-mass analyses, as well as a D 2 gas mixture of 96% purity used in KATRIN commissioning runs. The achieved precision on the energy-loss function has abated the corresponding uncertainty of σ(mν2) < 10-2eV2 [1] in the KATRIN neutrino-mass measurement to a subdominant levelSpringerDepartamento de Química Física AplicadaFacultad de Ciencias20212021-07-05research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/704628https://dx.doi.org/10.1140/epjc/s10052-021-09325-zreponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7046282026-06-23T12:46:27Z
dc.title.none.fl_str_mv Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment
title Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment
spellingShingle Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment
Aker, M.
Neutrino Mass
Tritium
Electron Capture
Química
title_short Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment
title_full Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment
title_fullStr Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment
title_full_unstemmed Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment
title_sort Precision measurement of the electron energy-loss function in tritium and deuterium gas for the KATRIN experiment
dc.creator.none.fl_str_mv Aker, M.
Díaz Barrero, Deseada
López Poyato, J. Manuel
Telle, Helmut H.
author Aker, M.
author_facet Aker, M.
Díaz Barrero, Deseada
López Poyato, J. Manuel
Telle, Helmut H.
author_role author
author2 Díaz Barrero, Deseada
López Poyato, J. Manuel
Telle, Helmut H.
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Química Física Aplicada
Facultad de Ciencias
dc.subject.none.fl_str_mv Neutrino Mass
Tritium
Electron Capture
Química
topic Neutrino Mass
Tritium
Electron Capture
Química
description Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-07-05
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/704628
https://dx.doi.org/10.1140/epjc/s10052-021-09325-z
url http://hdl.handle.net/10486/704628
https://dx.doi.org/10.1140/epjc/s10052-021-09325-z
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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