Search for a Sub-eV Sterile Neutrino using Daya Bay's Full Dataset

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493895" target="_blank" >RIV/00216208:11320/24:10493895 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=iZKC9l9o-t" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=iZKC9l9o-t</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.133.051801" target="_blank" >10.1103/PhysRevLett.133.051801</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for a Sub-eV Sterile Neutrino using Daya Bay's Full Dataset

Popis výsledku v původním jazyce

This Letter presents results of a search for the mixing of a sub-eV sterile neutrino with three active neutrinos based on the full data sample of the Daya Bay Reactor Neutrino Experiment, collected during 3158 days of detector operation, which contains 5.55 . 55 x 106 6 reactor v&lt;overline&gt;e e candidates identified as inverse beta- decay interactions followed by neutron capture on gadolinium. The analysis benefits from a doubling of the statistics of our previous result and from improvements of several important systematic uncertainties. No significant oscillation due to mixing of a sub-eV sterile neutrino with active neutrinos was found. Exclusion limits are set by both Feldman-Cousins and CLs methods. Light sterile neutrino mixing with sin 2 28 14 greater than or similar to 0.01 . 01 can be excluded at 95% confidence level in the region of 0.01 . 01 eV2 2 less than or similar to j Delta m241j less than or similar to 0.1 m 2 41 j less than or similar to 0 . 1 eV2. 2 . This result represents the world-leading constraints in the region of 2 x 10-4 - 4 eV2 2 less than or similar to j Delta m241j less than or similar to 0.2 m 2 41 j less than or similar to 0 . 2 eV2. 2 .

Název v anglickém jazyce

Search for a Sub-eV Sterile Neutrino using Daya Bay's Full Dataset

Popis výsledku anglicky

This Letter presents results of a search for the mixing of a sub-eV sterile neutrino with three active neutrinos based on the full data sample of the Daya Bay Reactor Neutrino Experiment, collected during 3158 days of detector operation, which contains 5.55 . 55 x 106 6 reactor v&lt;overline&gt;e e candidates identified as inverse beta- decay interactions followed by neutron capture on gadolinium. The analysis benefits from a doubling of the statistics of our previous result and from improvements of several important systematic uncertainties. No significant oscillation due to mixing of a sub-eV sterile neutrino with active neutrinos was found. Exclusion limits are set by both Feldman-Cousins and CLs methods. Light sterile neutrino mixing with sin 2 28 14 greater than or similar to 0.01 . 01 can be excluded at 95% confidence level in the region of 0.01 . 01 eV2 2 less than or similar to j Delta m241j less than or similar to 0.1 m 2 41 j less than or similar to 0 . 1 eV2. 2 . This result represents the world-leading constraints in the region of 2 x 10-4 - 4 eV2 2 less than or similar to j Delta m241j less than or similar to 0.2 m 2 41 j less than or similar to 0 . 2 eV2. 2 .

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

2024

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

133

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

051801

Kód UT WoS článku

001288385300007

EID výsledku v databázi Scopus

2-s2.0-85200400316