Antineutrino energy spectrum unfolding based on the Daya Bay measurement and its applications *
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10439412" target="_blank" >RIV/00216208:11320/21:10439412 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=DuBY8bmvlC" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=DuBY8bmvlC</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1674-1137/abfc38" target="_blank" >10.1088/1674-1137/abfc38</a>
Alternative languages
Result language
angličtina
Original language name
Antineutrino energy spectrum unfolding based on the Daya Bay measurement and its applications *
Original language description
The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in combination with the fission rates of fissile isotopes in the reactor, is used to extract the positron energy spectra resulting from the fission of specific isotopes. This information can be used to produce a precise, data-based prediction of the antineutrino energy spectrum in other reactor antineutrino experiments with different fission fractions than Daya Bay. The positron energy spectra are unfolded to obtain the antineutrino energy spectra by removing the contribution from detector response with the Wiener-SVD unfolding method. Consistent results are obtained with other unfolding methods. A technique to construct a data-based prediction of the reactor antineutrino energy spectrum is proposed and investigated. Given the reactor fission fractions, the technique can predict the energy spectrum to a 2% precision. In addition, we illustrate how to perform a rigorous comparison between the unfolded antineutrino spectrum and a theoretical model prediction that avoids the input model bias of the unfolding method.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/LTT17021" target="_blank" >LTT17021: Reactor neutrino experiments Daya Bay and JUNO</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chinese Physics C
ISSN
1674-1137
e-ISSN
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Volume of the periodical
45
Issue of the periodical within the volume
7
Country of publishing house
CN - CHINA
Number of pages
19
Pages from-to
073001
UT code for WoS article
000731625300001
EID of the result in the Scopus database
2-s2.0-85110512081