Indication of Reactor ν̅[subscript e] Disappearance in the Double Chooz Experiment
The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0.040(syst) was obtained in 101 days of running at the Chooz nuclear power plant in France, with two...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/70509 https://orcid.org/0000-0002-9970-108X https://orcid.org/0000-0002-6393-0438 |
| _version_ | 1811084271935291392 |
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| author | Conrad, Janet Jones, Christopher LaDon Spitz, Joshua B. Terao, Kazuhiro Winslow, Lindley |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Conrad, Janet Jones, Christopher LaDon Spitz, Joshua B. Terao, Kazuhiro Winslow, Lindley |
| author_sort | Conrad, Janet |
| collection | MIT |
| description | The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0.040(syst) was obtained in 101 days of running at the Chooz nuclear power plant in France, with two 4.25 GW[subscript th] reactors. The results were obtained from a single 10 m[superscript 3] fiducial volume detector located 1050 m from the two reactor cores. The reactor antineutrino flux prediction used the Bugey4 flux measurement after correction for differences in core composition. The deficit can be interpreted as an indication of a nonzero value of the still unmeasured neutrino mixing parameter sin[superscript 2]2θ[subscript 13]. Analyzing both the rate of the prompt positrons and their energy spectrum, we find sin[superscript 2]2θ[subscript 13]=0.086±0.041(stat)±0.030(syst), or, at 90% C.L., 0.017<sin[superscript 2]2θ[subscript 13]<0.16. |
| first_indexed | 2024-09-23T12:48:05Z |
| format | Article |
| id | mit-1721.1/70509 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:48:05Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/705092022-09-28T10:06:26Z Indication of Reactor ν̅[subscript e] Disappearance in the Double Chooz Experiment Indication of Reactor ν̅e Disappearance in the Double Chooz Experiment Conrad, Janet Jones, Christopher LaDon Spitz, Joshua B. Terao, Kazuhiro Winslow, Lindley Massachusetts Institute of Technology. Department of Physics Conrad, Janet Conrad, Janet Jones, Christopher LaDon Spitz, Joshua B. Terao, Kazuhiro Winslow, Lindley The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio of events of 0.944±0.016(stat)±0.040(syst) was obtained in 101 days of running at the Chooz nuclear power plant in France, with two 4.25 GW[subscript th] reactors. The results were obtained from a single 10 m[superscript 3] fiducial volume detector located 1050 m from the two reactor cores. The reactor antineutrino flux prediction used the Bugey4 flux measurement after correction for differences in core composition. The deficit can be interpreted as an indication of a nonzero value of the still unmeasured neutrino mixing parameter sin[superscript 2]2θ[subscript 13]. Analyzing both the rate of the prompt positrons and their energy spectrum, we find sin[superscript 2]2θ[subscript 13]=0.086±0.041(stat)±0.030(syst), or, at 90% C.L., 0.017<sin[superscript 2]2θ[subscript 13]<0.16. United States. Dept. of Energy National Science Foundation (U.S.) 2012-05-04T18:12:30Z 2012-05-04T18:12:30Z 2012-03 2012-01 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/70509 Abe, Y. et al. “Indication of Reactor ν[over ¯]_{e} Disappearance in the Double Chooz Experiment.” Physical Review Letters 108.13 (2012): Web. 4 May 2012. © 2012 American Physical Society https://orcid.org/0000-0002-9970-108X https://orcid.org/0000-0002-6393-0438 en_US http://dx.doi.org/10.1103/PhysRevLett.108.131801 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Conrad, Janet Jones, Christopher LaDon Spitz, Joshua B. Terao, Kazuhiro Winslow, Lindley Indication of Reactor ν̅[subscript e] Disappearance in the Double Chooz Experiment |
| title | Indication of Reactor ν̅[subscript e] Disappearance in the Double Chooz Experiment |
| title_full | Indication of Reactor ν̅[subscript e] Disappearance in the Double Chooz Experiment |
| title_fullStr | Indication of Reactor ν̅[subscript e] Disappearance in the Double Chooz Experiment |
| title_full_unstemmed | Indication of Reactor ν̅[subscript e] Disappearance in the Double Chooz Experiment |
| title_short | Indication of Reactor ν̅[subscript e] Disappearance in the Double Chooz Experiment |
| title_sort | indication of reactor ν̅ subscript e disappearance in the double chooz experiment |
| url | http://hdl.handle.net/1721.1/70509 https://orcid.org/0000-0002-9970-108X https://orcid.org/0000-0002-6393-0438 |
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