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Joint Measurement of the ^{235}U Antineutrino Spectrum by PROSPECT and STEREO.
- Source :
-
Physical review letters [Phys Rev Lett] 2022 Feb 25; Vol. 128 (8), pp. 081802. - Publication Year :
- 2022
-
Abstract
- The PROSPECT and STEREO collaborations present a combined measurement of the pure ^{235}U antineutrino spectrum, without site specific corrections or detector-dependent effects. The spectral measurements of the two highest precision experiments at research reactors are found to be compatible with χ^{2}/ndf=24.1/21, allowing a joint unfolding of the prompt energy measurements into antineutrino energy. This ν[over ¯]_{e} energy spectrum is provided to the community, and an excess of events relative to the Huber model is found in the 5-6 MeV region. When a Gaussian bump is fitted to the excess, the data-model χ^{2} value is improved, corresponding to a 2.4σ significance.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 128
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 35275665
- Full Text :
- https://doi.org/10.1103/PhysRevLett.128.081802