%0 Journal Article
%T Letter of Intent for Double-CHOOZ: a Search for the Mixing Angle Theta13
%A F. Ardellier
%A I. Barabanov
%A J. C. Barriere
%A M. Bauer
%A L. Bezrukov
%A C. Buck
%A C. Cattadori
%A B. Courty
%A M. Cribier
%A F. Dalnoki-Veress
%A N. Danilov
%A H. de Kerret
%A A. Di Vacri
%A A. Etenko
%A M. Fallot
%A Ch. Grieb
%A M. Goeger
%A A. Guertin
%A T. Kirchner
%A Y. S. Krylov
%A D. Kryn
%A C. Hagner
%A W. Hampel
%A F. X. Hartmann
%A P. Huber
%A J. Jochum
%A T. Lachenmaier
%A Th. Lasserre
%A Ch. Lendvai
%A M. Lindner
%A F. Marie
%A J. Martino
%A G. Mention
%A A. Milsztajn
%A J. P. Meyer
%A D. Motta
%A L. Oberauer
%A M. Obolensky
%A L. Pandola
%A W. Potzel
%A S. Schoenert
%A U. Schwan
%A T. Schwetz
%A S. Scholl
%A L. Scola
%A M. Skorokhvatov
%A S. Sukhotin
%A A. Letourneau
%A D. Vignaud
%A F. von Feilitzsch
%A W. Winter
%A E. Yanovich
%J Physics
%D 2004
%I arXiv
%X 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.
%U http://arxiv.org/abs/hep-ex/0405032v1