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PhysRevD.86.052008-accepted.pdf (805.53 kB)

Reactor ? ¯e disappearance in the Double Chooz experiment

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posted on 2023-06-10, 01:46 authored by Y Abe, C Aberle, J C Dos Anjos, J C Barriere, M Bergevin, A Bernstein, Thiago Sogo BezerraThiago Sogo Bezerra, L Bezrukhov, E Blucher, N S Bowden, C Buck, J Busenitz, A Cabrera, E Caden, L Camilleri, Double Chooz Collaboration, others
The Double Chooz experiment has observed 8249 candidate electron antineutrino events in 227.93 live days with 33.71GW-ton-years (reactor power×detector mass×live time) exposure using a 10.3m3 fiducial volume detector located at 1050m from the reactor cores of the Chooz nuclear power plant in France. The expectation in case of ? 13=0 is 8937 events. The deficit is interpreted as evidence of electron antineutrino disappearance. From a rate plus spectral shape analysis we find sin22? 13=0.109±0.030(stat)±0.025(syst) . The data exclude the no-oscillation hypothesis at 99.8%CL (2.9s).

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Publication status

  • Published

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  • Published version

Journal

Physical Review D - Particles, Fields, Gravitation and Cosmology

ISSN

1550-7998

Publisher

American Physical Society

Issue

5

Volume

86

Page range

1-21

Article number

a052008

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2021-11-16

First Open Access (FOA) Date

2021-11-16

First Compliant Deposit (FCD) Date

2021-11-12

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