Measurement of Electron Antineutrino Oscillation Amplitude and Frequency via Neutron Capture on Hydrogen at Daya Bay
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493911" target="_blank" >RIV/00216208:11320/24:10493911 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=A1Jd3C7jxh" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=A1Jd3C7jxh</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.133.151801" target="_blank" >10.1103/PhysRevLett.133.151801</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of Electron Antineutrino Oscillation Amplitude and Frequency via Neutron Capture on Hydrogen at Daya Bay
Original language description
This Letter reports the first measurement of the oscillation amplitude and frequency of reactor antineutrinos at Daya Bay via neutron capture on hydrogen using 1958 days of data. With over 3.6 million signal candidates, an optimized candidate selection, improved treatment of backgrounds and efficiencies, refined energy calibration, and an energy response model for the capture-on-hydrogen sensitive region, the relative (nu) over bar (e) rates and energy spectra variation among the near and far detectors gives sin(2)2 theta(13) = 0.0759(-0.0049)(+0.0050) and Delta m(32)(2) = (2.72(-0.15)(+0.14)) x 10(-3) eV(2) assuming the normal neutrino mass ordering, and Delta m(32)(2) = (-2.83(-0.14)(+0.15)) x 10(-3) eV(2) for the inverted neutrino mass ordering. This estimate of sin(2)2 theta(13) is consistent with and essentially independent from the one obtained using the capture-on-gadolinium sample at Daya Bay. The combination of these two results yields sin(2)2 theta(13) = 0.0833 +/- 0.0022, which represents an 8% relative improvement in precision regarding the Daya Bay full 3158-day capture-on-gadolinium result.
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
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Letters
ISSN
0031-9007
e-ISSN
1079-7114
Volume of the periodical
133
Issue of the periodical within the volume
15
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
151801
UT code for WoS article
001382581800001
EID of the result in the Scopus database
2-s2.0-85206081586