Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino

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

Detalles Bibliográficos
Autores: Agostini, M., Borexino Collaboration, Bravo Roldán, David
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/714625
Acceso en línea:http://hdl.handle.net/10486/714625
https://dx.doi.org/10.1103/PhysRevD.105.052002
Access Level:acceso abierto
Palabra clave:Solar neutrinos
Scintillation counter
Photons
Borexino experiment
Física
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spelling Correlated and integrated directionality for sub-MeV solar neutrinos in BorexinoAgostini, M.Borexino CollaborationBravo Roldán, DavidSolar neutrinosScintillation counterPhotonsBorexino experimentFísicaArtículo escrito por un elevado número de autores. Solo se referencia el que aparece en primer lugar, el nombre del grupo de colaboración si hubiere y los autores pertenecientes a la UAMLiquid scintillator detectors play a central role in the detection of neutrinos from various sources. In particular, it is the only technique used so far for the precision spectroscopy of sub-MeV solar neutrinos, as demonstrated by the Borexino experiment at the Gran Sasso National Laboratory in Italy. The benefit of a high light yield, and thus a low energy threshold and a good energy resolution, comes at the cost of the directional information featured by water Cherenkov detectors, measuring B8 solar neutrinos above a few MeV. In this paper we provide the first directionality measurement of sub-MeV solar neutrinos which exploits the correlation between the first few detected photons in each event and the known position of the Sun for each event. This is also the first signature of directionality in neutrinos elastically scattering off electrons in a liquid scintillator target. This measurement exploits the subdominant, fast Cherenkov light emission that precedes the dominant yet slower scintillation light signal. Through this measurement, we have also been able to extract the rate of Be7 solar neutrinos in Borexino. The demonstration of directional sensitivity in a traditional liquid scintillator target paves the way for the possible exploitation of the Cherenkov light signal in future kton-scale experiments using liquid scintillator targets. Directionality is important for background suppression as well as the disentanglement of signals from variousThe Borexino program is made possible by funding from Istituto Nazionale di Fisica Nucleare (INFN) (Italy), National Science Foundation (NSF) (USA), Deutsche Forschungsgemeinschaft (DFG), Cluster of Excellence PRISMA+ (Project ID 390831469), and recruitment initiative of Helmholtz-Gemeinschaft (HGF) (Germany), Russian Foundation for Basic Research (RFBR) (Grants No. 19-02-00097A) and Russian Science Foundation (RSF) (Grant No. 21-12-00063) (Russia), and Narodowe Centrum Nauki (NCN) (Grant No. UMO 2017/26/M/ST2/00915) (Poland). We gratefully acknowledge the computing services of Bologna INFN-Centro Nazionale Analisi Fotogrammi (CNAF) data center and U-Lite Computing Center and Network Service at LNGS (Italy)American Physical SocietyDepartamento de Física de MaterialesFacultad de Ciencias20222022-03-03research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/714625https://dx.doi.org/10.1103/PhysRevD.105.052002reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7146252026-06-23T12:46:27Z
dc.title.none.fl_str_mv Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino
title Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino
spellingShingle Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino
Agostini, M.
Solar neutrinos
Scintillation counter
Photons
Borexino experiment
Física
title_short Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino
title_full Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino
title_fullStr Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino
title_full_unstemmed Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino
title_sort Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino
dc.creator.none.fl_str_mv Agostini, M.
Borexino Collaboration
Bravo Roldán, David
author Agostini, M.
author_facet Agostini, M.
Borexino Collaboration
Bravo Roldán, David
author_role author
author2 Borexino Collaboration
Bravo Roldán, David
author2_role author
author
dc.contributor.none.fl_str_mv Departamento de Física de Materiales
Facultad de Ciencias
dc.subject.none.fl_str_mv Solar neutrinos
Scintillation counter
Photons
Borexino experiment
Física
topic Solar neutrinos
Scintillation counter
Photons
Borexino experiment
Física
description Artículo escrito por un elevado número de autores. Solo se referencia el que aparece en primer lugar, el nombre del grupo de colaboración si hubiere y los autores pertenecientes a la UAM
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-03-03
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/714625
https://dx.doi.org/10.1103/PhysRevD.105.052002
url http://hdl.handle.net/10486/714625
https://dx.doi.org/10.1103/PhysRevD.105.052002
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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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