Joint Determination of Reactor Antineutrino Spectra from U-235 and Pu-239 Fission by Daya Bay and PROSPECT

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10455151" target="_blank" >RIV/00216208:11320/22:10455151 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=f9Z3PeIzqd" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=f9Z3PeIzqd</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.128.081801" target="_blank" >10.1103/PhysRevLett.128.081801</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Joint Determination of Reactor Antineutrino Spectra from U-235 and Pu-239 Fission by Daya Bay and PROSPECT

Popis výsledku v původním jazyce

A joint determination of the reactor antineutrino spectra resulting from the fission of U-235 and Pu-239 has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of U-235 spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant U-235 and Pu-239 isotopes and improves the uncertainty of the U-235 spectral shape to about 3%. The U-235 and Pu-239 antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the U-235 and Pu-239 spectra based on the combination of experiments at low-and highly enriched uranium reactors.

Název v anglickém jazyce

Joint Determination of Reactor Antineutrino Spectra from U-235 and Pu-239 Fission by Daya Bay and PROSPECT

Popis výsledku anglicky

A joint determination of the reactor antineutrino spectra resulting from the fission of U-235 and Pu-239 has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of U-235 spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant U-235 and Pu-239 isotopes and improves the uncertainty of the U-235 spectral shape to about 3%. The U-235 and Pu-239 antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the U-235 and Pu-239 spectra based on the combination of experiments at low-and highly enriched uranium reactors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

128

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

081801

Kód UT WoS článku

000766657400007

EID výsledku v databázi Scopus

2-s2.0-85125673608