Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-11-08
Phys.Rev. D68 (2003) 033017; Erratum-ibid. D70 (2004) 059901
Physics
High Energy Physics
High Energy Physics - Phenomenology
25 pages, 8 figures, uses revtex4 and graphicx. Several modifications added to make the text easier to understand. Two more fi
Scientific paper
10.1103/PhysRevD.70.059901
A possibility to measure $\sin^22\theta_{13}$ using reactor neutrinos is examined in detail. It is shown that the sensitivity $\sin^22\theta_{13}>0.02$ can be reached with 20 ton-year data by placing identical CHOOZ-like detectors at near and far distances from a giant nuclear power plant whose total thermal energy is 24.3 ${\text{GW}_{\text{th}}}$. It is emphasized that this measurement is free from the parameter degeneracies which occur in accelerator appearance experiments, and therefore the reactor measurement plays a role complementary to accelerator experiments. It is also shown that the reactor measurement may be able to resolve the degeneracy in $\theta_{23}$ if $\sin^22\theta_{13}$ and $\cos^22\theta_{23}$ are relatively large.
Inoue Katsumi
Minakata Hisakazu
Suekane Fumihiko
Sugiyama Hiroaki
Yasuda Osamu
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