STEREO neutrino spectrum of 235U fission rejects sterile neutrino hypothesis

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • H Almazan
  • L Bernard
  • A Bonhomme
  • C Buck
  • A Chalil
  • P del Amo Sanchez
  • I El Atmani
  • L Labit
  • A Letourneau
  • D Lhuillier
  • M Licciardi
  • M Lindner
  • T Materna
  • H Pessard
  • J-S Real
  • J-S Ricol
  • C Roca
  • R Rogly
  • T Salagnac
  • V Savu
  • S Schoppmann
  • T Soldner
  • A Stutz
  • M Vialat
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000913332100001&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1038/s41586-022-05568-2
eISSN
1476-4687
Externe Identifier
  • Clarivate Analytics Document Solution ID: 7W2GT
  • PubMed Identifier: 36631644
ISSN
0028-0836
Ausgabe der Veröffentlichung
7943
Zeitschrift
NATURE
Paginierung
257 - +
Datum der Veröffentlichung
2023
Status
Published
Titel
STEREO neutrino spectrum of <SUP>235</SUP>U fission rejects sterile neutrino hypothesis
Sub types
  • Article
Ausgabe der Zeitschrift
613

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Autoren
  • H Almazán
  • L Bernard
  • A Blanchet
  • A Bonhomme
  • C Buck
  • A Chalil
  • P del Amo Sanchez
  • I El Atmani
  • L Labit
  • J Lamblin
  • A Letourneau
  • D Lhuillier
  • M Licciardi
  • M Lindner
  • T Materna
  • H Pessard
  • J-S Réal
  • J-S Ricol
  • C Roca
  • R Rogly
  • T Salagnac
  • V Savu
  • S Schoppmann
  • T Soldner
  • A Stutz
  • M Vialat
DOI
10.1038/s41586-022-05568-2
eISSN
1476-4687
ISSN
0028-0836
Ausgabe der Veröffentlichung
7943
Zeitschrift
Nature
Sprache
en
Online publication date
2023
Paginierung
257 - 261
Datum der Veröffentlichung
2023
Status
Published
Herausgeber
Springer Science and Business Media LLC
Herausgeber URL
http://dx.doi.org/10.1038/s41586-022-05568-2
Datum der Datenerfassung
2024
Titel
STEREO neutrino spectrum of 235U fission rejects sterile neutrino hypothesis
Ausgabe der Zeitschrift
613

Datenquelle: Crossref

Abstract
Anomalies in past neutrino measurements have led to the discovery that these particles have non-zero mass and oscillate between their three flavours when they propagate. In the 2010s, similar anomalies observed in the antineutrino spectra emitted by nuclear reactors have triggered the hypothesis of the existence of a supplementary neutrino state that would be sterile, that is, not interacting by means of the weak interaction<sup>1</sup>. The STEREO experiment<sup>2-6</sup> was designed to investigate this conjecture, which would potentially extend the standard model of particle physics. Here we present an analysis of the full set of data generated by STEREO, confirming observed anomalies while rejecting the hypothesis of a light sterile neutrino. Installed at the Institut Laue-Langevin (ILL) research reactor, STEREO accurately measures the antineutrino energy spectrum associated to the fission of <sup>235</sup>U. The segmentation of the detector and its very short distance to the compact core are crucial properties of STEREO for our analysis. The measured antineutrino energy spectrum suggests that anomalies originate from biases in the nuclear experimental data used for the predictions<sup>7,8</sup>. Our result supports the neutrino content of the standard model and establishes a new reference for the <sup>235</sup>U antineutrino energy spectrum. We anticipate that this result will allow progress towards finer tests of the fundamental properties of neutrinos but also to benchmark models and nuclear data of interest for reactor physics<sup>9,10</sup> and for observations of astrophysical or geoneutrinos<sup>11,12</sup>.
Autoren
  • STEREO Collaboration
DOI
10.1038/s41586-022-05568-2
eISSN
1476-4687
Externe Identifier
  • PubMed Identifier: 36631644
Open access
false
ISSN
0028-0836
Ausgabe der Veröffentlichung
7943
Zeitschrift
Nature
Schlüsselwörter
  • STEREO Collaboration
Sprache
eng
Medium
Print-Electronic
Online publication date
2023
Paginierung
257 - 261
Datum der Veröffentlichung
2023
Status
Published
Datum der Datenerfassung
2023
Titel
STEREO neutrino spectrum of <sup>235</sup>U fission rejects sterile neutrino hypothesis.
Sub types
  • Research Support, Non-U.S. Gov't
  • Journal Article
Ausgabe der Zeitschrift
613

Datenquelle: Europe PubMed Central

Abstract
Anomalies in past neutrino measurements have led to the discovery that these particles have non-zero mass and oscillate between their three flavours when they propagate. In the 2010s, similar anomalies observed in the antineutrino spectra emitted by nuclear reactors have triggered the hypothesis of the existence of a supplementary neutrino state that would be sterile, that is, not interacting by means of the weak interaction1. The STEREO experiment2-6 was designed to investigate this conjecture, which would potentially extend the standard model of particle physics. Here we present an analysis of the full set of data generated by STEREO, confirming observed anomalies while rejecting the hypothesis of a light sterile neutrino. Installed at the Institut Laue-Langevin (ILL) research reactor, STEREO accurately measures the antineutrino energy spectrum associated to the fission of 235U. The segmentation of the detector and its very short distance to the compact core are crucial properties of STEREO for our analysis. The measured antineutrino energy spectrum suggests that anomalies originate from biases in the nuclear experimental data used for the predictions7,8. Our result supports the neutrino content of the standard model and establishes a new reference for the 235U antineutrino energy spectrum. We anticipate that this result will allow progress towards finer tests of the fundamental properties of neutrinos but also to benchmark models and nuclear data of interest for reactor physics9,10 and for observations of astrophysical or geoneutrinos11,12.
Date of acceptance
2022
Autoren
  • STEREO Collaboration
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/36631644
DOI
10.1038/s41586-022-05568-2
eISSN
1476-4687
Ausgabe der Veröffentlichung
7943
Zeitschrift
Nature
Sprache
eng
Country
England
Paginierung
257 - 261
PII
10.1038/s41586-022-05568-2
Datum der Veröffentlichung
2023
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2023
Titel
STEREO neutrino spectrum of 235U fission rejects sterile neutrino hypothesis.
Sub types
  • Journal Article
  • Research Support, Non-U.S. Gov't
Ausgabe der Zeitschrift
613

Datenquelle: PubMed

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