The Antineutrino Energy Structure in Reactor Experiments
The recent observation of an energy structure in the reactor antineutrino spectrum is reviewed. The reactor experiments Daya Bay, Double Chooz, and RENO have reported a consistent excess of antineutrinos deviating from the flux predictions, with a local significance of about 4σ between 4 and 6 MeV o...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2015/364392 |
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| _version_ | 1832559178692952064 |
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| author | Pau Novella |
| author_facet | Pau Novella |
| author_sort | Pau Novella |
| collection | DOAJ |
| description | The recent observation of an energy structure in the reactor antineutrino spectrum is reviewed. The reactor experiments Daya Bay, Double Chooz, and RENO have reported a consistent excess of antineutrinos deviating from the flux predictions, with a local significance of about 4σ between 4 and 6 MeV of the positron energy spectrum. The possible causes of the structure are analyzed in this work, along with the different experimental approaches developed to identify its origin. Considering the available data and results from the three experiments, the most likely explanation concerns the reactor flux predictions and the associated uncertainties. Therefore, the different current models are described and compared. The possible sources of incompleteness or inaccuracy of such models are discussed, as well as the experimental data required to improve their precision. |
| format | Article |
| id | doaj-art-e65b551300d243719d71d13308a6659d |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-e65b551300d243719d71d13308a6659d2025-02-03T01:30:47ZengWileyAdvances in High Energy Physics1687-73571687-73652015-01-01201510.1155/2015/364392364392The Antineutrino Energy Structure in Reactor ExperimentsPau Novella0Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, C/Catedrático José Beltran 2, 46980 Paterna, SpainThe recent observation of an energy structure in the reactor antineutrino spectrum is reviewed. The reactor experiments Daya Bay, Double Chooz, and RENO have reported a consistent excess of antineutrinos deviating from the flux predictions, with a local significance of about 4σ between 4 and 6 MeV of the positron energy spectrum. The possible causes of the structure are analyzed in this work, along with the different experimental approaches developed to identify its origin. Considering the available data and results from the three experiments, the most likely explanation concerns the reactor flux predictions and the associated uncertainties. Therefore, the different current models are described and compared. The possible sources of incompleteness or inaccuracy of such models are discussed, as well as the experimental data required to improve their precision.http://dx.doi.org/10.1155/2015/364392 |
| spellingShingle | Pau Novella The Antineutrino Energy Structure in Reactor Experiments Advances in High Energy Physics |
| title | The Antineutrino Energy Structure in Reactor Experiments |
| title_full | The Antineutrino Energy Structure in Reactor Experiments |
| title_fullStr | The Antineutrino Energy Structure in Reactor Experiments |
| title_full_unstemmed | The Antineutrino Energy Structure in Reactor Experiments |
| title_short | The Antineutrino Energy Structure in Reactor Experiments |
| title_sort | antineutrino energy structure in reactor experiments |
| url | http://dx.doi.org/10.1155/2015/364392 |
| work_keys_str_mv | AT paunovella theantineutrinoenergystructureinreactorexperiments AT paunovella antineutrinoenergystructureinreactorexperiments |