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Measurement of Reactor Antineutrino Oscillation Amplitude and Frequency at RENO.
Bak, G; Choi, J H; Jang, H I; Jang, J S; Jeon, S H; Joo, K K; Ju, K; Jung, D E; Kim, J G; Kim, J H; Kim, J Y; Kim, S B; Kim, S Y; Kim, W; Kwon, E; Lee, D H; Lee, H G; Lee, Y C; Lim, I T; Moon, D H; Pac, M Y; Park, Y S; Rott, C; Seo, H; Seo, J W; Seo, S H; Shin, C D; Yang, J Y; Yoo, J; Yu, I.
Afiliación
  • Bak G; Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea.
  • Choi JH; Institute for High Energy Physics, Dongshin University, Naju 58245, Korea.
  • Jang HI; Department of Fire Safety, Seoyeong University, Gwangju 61268, Korea.
  • Jang JS; GIST College, Gwangju Institute of Science and Technology, Gwangju 61005, Korea.
  • Jeon SH; Department of Physics, Sungkyunkwan University, Suwon 16419, Korea.
  • Joo KK; Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea.
  • Ju K; Department of Physics, KAIST, Daejeon 34141, Korea.
  • Jung DE; Department of Physics, Sungkyunkwan University, Suwon 16419, Korea.
  • Kim JG; Department of Physics, Sungkyunkwan University, Suwon 16419, Korea.
  • Kim JH; Department of Physics, Sungkyunkwan University, Suwon 16419, Korea.
  • Kim JY; Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea.
  • Kim SB; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Kim SY; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Kim W; Department of Physics, Kyungpook National University, Daegu 41566, Korea.
  • Kwon E; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Lee DH; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Lee HG; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Lee YC; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Lim IT; Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea.
  • Moon DH; Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea.
  • Pac MY; Institute for High Energy Physics, Dongshin University, Naju 58245, Korea.
  • Park YS; Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea.
  • Rott C; Department of Physics, Sungkyunkwan University, Suwon 16419, Korea.
  • Seo H; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Seo JW; Department of Physics, Sungkyunkwan University, Suwon 16419, Korea.
  • Seo SH; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Shin CD; Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea.
  • Yang JY; Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea.
  • Yoo J; Institute for Basic Science, Daejeon 34047, Korea.
  • Yu I; Department of Physics, KAIST, Daejeon 34141, Korea.
Phys Rev Lett ; 121(20): 201801, 2018 Nov 16.
Article en En | MEDLINE | ID: mdl-30500262
ABSTRACT
The RENO experiment reports more precisely measured values of θ_{13} and |Δm_{ee}^{2}| using ∼2200 live days of data. The amplitude and frequency of reactor electron antineutrino (ν[over ¯]_{e}) oscillation are measured by comparing the prompt signal spectra obtained from two identical near and far detectors. In the period between August 2011 and February 2018, the far (near) detector observed 103 212 (850 666) ν[over ¯]_{e} candidate events with a background fraction of 4.8% (2.0%). A clear energy and baseline dependent disappearance of reactor ν[over ¯]_{e} is observed in the deficit of the measured number of ν[over ¯]_{e}. Based on the measured far-to-near ratio of prompt spectra, we obtain sin^{2}2θ_{13}=0.0896±0.0048(stat)±0.0047(syst) and |Δm_{ee}^{2}|=[2.68±0.12(stat)±0.07(syst)]×10^{-3} eV^{2}.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2018 Tipo del documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2018 Tipo del documento: Article