학술논문
Letter of Intent for Double-CHOOZ: a Search for the Mixing Angle Theta13
Document Type
Working Paper
Author
Ardellier, F.; Barabanov, I.; Barriere, J. C.; Bauer, M.; Bezrukov, L.; Buck, C.; Cattadori, C.; Courty, B.; Cribier, M.; Dalnoki-Veress, F.; Danilov, N.; de Kerret, H.; Di Vacri, A.; Etenko, A.; Fallot, M.; Grieb, Ch.; Goeger, M.; Guertin, A.; Kirchner, T.; Krylov, Y. S.; Kryn, D.; Hagner, C.; Hampel, W.; Hartmann, F. X.; Huber, P.; Jochum, J.; Lachenmaier, T.; Lasserre, Th.; Lendvai, Ch.; Lindner, M.; Marie, F.; Martino, J.; Mention, G.; Milsztajn, A.; Meyer, J. P.; Motta, D.; Oberauer, L.; Obolensky, M.; Pandola, L.; Potzel, W.; Schoenert, S.; Schwan, U.; Schwetz, T.; Scholl, S.; Scola, L.; Skorokhvatov, M.; Sukhotin, S.; Letourneau, A.; Vignaud, D.; von Feilitzsch, F.; Winter, W.; Yanovich, E.
Source
Subject
Language
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.
Comment: 102 pages, 9 chapters, 3 appendix. 43 figures
Comment: 102 pages, 9 chapters, 3 appendix. 43 figures