Letter of Intent for Double-CHOOZ: a Search for the Mixing Angle Theta13

F. Ardellier; I. Barabanov; J. C. Barriere; M. Bauer; L. Bezrukov; C. Buck; C. Cattadori; B. Courty; M. Cribier; F. Dalnoki-Veress; N. Danilov; H. de Kerret; A. Di Vacri; A. Etenko; M. Fallot; Ch. Grieb; M. Goeger; A. Guertin; T. Kirchner; Y. S. Krylov; D. Kryn; C. Hagner; W. Hampel; F. X. Hartmann; P. Huber; J. Jochum; T. Lachenmaier; Th. Lasserre; Ch. Lendvai; M. Lindner; F. Marie; J. Martino; G. Mention; A. Milsztajn; J. P. Meyer; D. Motta; L. Oberauer; M. Obolensky; L. Pandola; W. Potzel; S. Schoenert; U. Schwan; T. Schwetz; S. Scholl; L. Scola; M. Skorokhvatov; S. Sukhotin; A. Letourneau; D. Vignaud; F. von Feilitzsch; W. Winter; E. Yanovich

arXiv · hep-ex/0405032

Letter of Intent for Double-CHOOZ: a Search for the Mixing Angle Theta13

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Abstract

Tremendous progress has been achieved in neutrino oscillation physics during the last few years. However, the smallness of the $\t13$ neutrino mixing angle still remains enigmatic. The current best constraint comes from the CHOOZ reactor neutrino experiment $\s2t13 < 0.2$ (at 90% C.L., for $\adm2=2.0 10^{-3} \text{eV}^2$). We propose a new experiment on the same site, Double-CHOOZ, to explore the range of $\s2t13$ from 0.2 to 0.03, within three years of data taking. The improvement of the CHOOZ result requires an increase in the statistics, a reduction of the systematic error below one percent, and a careful control of the cosmic ray induced background. Therefore, Double-CHOOZ will use two identical detectors, one at $\sim$150 m and another at 1.05 km distance from the nuclear cores. The plan is to start data taking with two detectors in 2008, and to reach a sensitivity of 0.05 in 2009, and 0.03 in 2011.

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F. Ardellier, I. Barabanov, J. C. Barriere, M. Bauer, L. Bezrukov, C. Buck, C. Cattadori, B. Courty, M. Cribier, F. Dalnoki-Veress, N. Danilov, H. de Kerret, A. Di Vacri, A. Etenko, M. Fallot, Ch. Grieb, M. Goeger, A. Guertin, T. Kirchner, Y. S. Krylov, D. Kryn, C. Hagner, W. Hampel, F. X. Hartmann, P. Huber, J. Jochum, T. Lachenmaier, Th. Lasserre, Ch. Lendvai, M. Lindner, F. Marie, J. Martino, G. Mention, A. Milsztajn, J. P. Meyer, D. Motta, L. Oberauer, M. Obolensky, L. Pandola, W. Potzel, S. Schoenert, U. Schwan, T. Schwetz, S. Scholl, L. Scola, M. Skorokhvatov, S. Sukhotin, A. Letourneau, D. Vignaud, F. von Feilitzsch, W. Winter, E. Yanovich. 2004-05-14. Letter of Intent for Double-CHOOZ: a Search for the Mixing Angle Theta13. https://arxiv.org/abs/hep-ex/0405032

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