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          Institute: MPI für Kernphysik     Collection: Neutrino Physics     Display Documents

ID: 207262.0, MPI für Kernphysik / Neutrino Physics
Letter of Intent for Double-CHOOZ: a Search for the Mixing Angle Theta13
Authors:Ardellier, F.; Barabanov, Igor; Barrière, J. C.; Bauer, M.; Bezrukov, L.; Buck, Christian; Cattadori, Carla; Courty, B.; Cribier, Michel; Dalnoki-Veress, Ferenc; Danilov, N.; de Kerret, Hervé; Di Vacri, A.; Etenko, A.; Fallot, M.; Grieb, Christian; Goeger, Marianne; Guertin, A.; Kirchner, T.; Krylov, Y. S.; Kryn, D.; Hagner, Caren; Hampel, Wolfgang; Hartmann, Frank Xavier; Huber, P.; Jochum, Josef; Lachenmaier, Tobias; Lasserre, Thierry; Lendvai, Christian; Lindner, M.; Marie, F.; Martino, J.; Mention, G.; Milsztajn, A.; Meyer, Jean Paul; Motta, Dario; Oberauer, Lothar; Obolensky, M.; Pandola, Luciano; Potzel, Walter; Schoenert, Stefan; Schwan, Ute; Schwetz, T.; Scholl, S.; Scola, L.; Skorokhvatov, M.; Sukhotin, S.; Letourneau, A.; Vignaud, D.; von Feilitzsch, Franz; Winter, W.; Yanovich, E.
Research Context:Neutrino physics
Date of Publication (YYYY-MM-DD):2004
Review Status:not specified
Audience:Experts Only
Abstract / Description:Tremendous progress has been achieved in neutrino oscillation physics during the last few years. However, the smallness of the theta13 neutrino mixing angle still remains enigmatic. The current best constraint comes from the CHOOZ reactor neutrino experiment sin^2(2*theta13) < 0.2 (at 90% C.L., for dm^2_atm=2.0 10^{-3} {eV}^2). We propose a new experiment on the same site, Double-CHOOZ, to explore the range of sin^2(2*theta13) 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 ~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.
Free Keywords:theta13, reactor neutrinos
External Publication Status:published
Document Type:Conference-Paper
Affiliations:MPI für Kernphysik/Independent Research Group S. Schönert/Neutrino Physics
External Affiliations:APC Paris
IPC of RAS, Moscow
Eberhard Karls Universität Tübingen
INFN, LNGS/Assergi
INFN, Milano
INR of RAS, Moscow
PCC Collège de France, Paris
RRC Kurchatov Institute, Moscow
Subatech, Nantes
Technische Universität München, Garching
University of L'Aquila
Universität Hamburg
Identifiers:URL:http://arxiv.org/abs/hep-ex/0405032 [hep-ex/0405032]
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