The Kr2Det project: Search for mass-3 state contribution |Ue3|2 to the electron neutrino using a one-reactor-two-detector oscillation experiment at the ... View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2003-10

AUTHORS

V. P. Martemyanov, L. A. Mikaelyan, V. V. Sinev, V. I. Kopeikin, Yu. V. Kozlov

ABSTRACT

The main physical goal of the project is to search with reactor antineutrinos for small mixing angle oscillations in the mass parameter region around Δmatm2 ∼ 2.5 × 10−3 eV2 in order to find the element Ue3 of the neutrino mixing matrix or to set a new more stringent constraint. To achieve this, we propose a “one-reactor-two-detector” experiment with two identical antineutrino spectrometers located ∼100 and ∼1000 m from the Krasnoyarsk underground reactor (∼600 m w.e.). In the no-oscillation case, the ratio of measured positron spectra of the \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $$\bar \nu _e + p \to e^ + + n$$ \end{document} reaction is energy independent. Deviation from a constant value of this ratio is the oscillation signature. In this scheme, results do not depend on the exact knowledge of the reactor power, νe spectra, burnup effects, and target volumes, and an important point that the backgrounds can periodically be measured during reactor off periods. We give a schematic description of the detectors, calculate the neutrino detection rates, and estimate the backgrounds. We also outline the detector monitoring and calibration procedures. We hope that systematic uncertainties will not exceed 0.5% and that the sensitivity of |Ue3|2≈4×10− (at Δm2=2.5×10−3 eV2) can be achieved. More... »

PAGES

1934-1939

References to SciGraph publications

  • 2000-06. Neutrino oscillations at reactors: What is next? in PHYSICS OF ATOMIC NUCLEI
  • Identifiers

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    http://scigraph.springernature.com/pub.10.1134/1.1619504

    DOI

    http://dx.doi.org/10.1134/1.1619504

    DIMENSIONS

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