Author: Byron D. Dieterle (Univ. of New Mexico, Albuquerque NM 87131)
Title: The CHOOZ and KamLAND Reactor Neutrino Experiments
Abstract: Neutrinos were discovered at reactors forty years ago, and reactors remain animportant tool for the investigation of neutrinos. This is primarily due to theintense flux which is known to better than 2%, and has pure electron flavor. Distantdetectors can have sufficient count rates to test the hypotheses that the cosmic rayanomaly (CRA-too few muon flavored neutrinos from the atmosphere) and the solarneutrino anomaly (SNA-too few electron flavored solar neutrinos) are due to the oscillations of neutrinos with mass. The CHOOZ experiment tests in the region of the CRA with a detector one kilometer from reactors. It is sensitive to oscillations resulting from squared neutrino masses of 0.001 eV^2, and has seen no electron flavor oscillations. KamLAND is 160 Km from reactors and tests down to 0.00001 eV^2 -the region of the SNA. It is also sensitive to neutrinos fromthe sun, and high purity scintillator will allow detection of solar neutrinos downto lower energies than is possible in water cherenkov detectors. Construction of the apparatus has begun and the experiment with be started in the year 2001.
Comments: 8 pages, Latex, 7 figures.Report-no: noneSubj-class: hep-exJournal-ref: none