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Title: Current status of new SAGE project with 51Cr neutrino source

Abstract

A very short-baseline neutrino oscillation experiment with an intense 51Cr neutrino source is currently under construction at the Baksan Neutrino Observatory of the Institute for Nuclear Research RAS (BNO). The experiment, which is based on the existing SAGE experiment, will use an upgraded Gallium-Germanium Neutrino Telescope (GGNT) and an artificial 51Cr neutrino source with activity ~3 MCi to search for transitions of active neutrinos to sterile states with Δm2 ~1 eV2. The neutrino source will be placed in the center of a liquid Ga metal target that is divided into two concentric zones, internal and external. The average path length of neutrinos in each zone will be the same and the neutrino capture rate will be measured separately in each zone. The oscillation signature, which comes from the ratio of events in the near and far gallium volumes, will be largely free of systematic errors, such as may occur from cross section and source strength uncertainties, and will provide a clean signal of electron neutrino disappearance into a sterile state at baselines of about 0.6 and 2.0 m. The sensitivity to the disappearance of electron neutrinos is expected to be a few percent. Construction of this set of new facilities,more » including a two-zone tank for irradiation of 50 tons of Ga metal with the intense 51Cr source, as well as additional modules of the GGNT counting and extraction systems, is close to completion. In order to check the new facilities they will first be used for SAGE solar neutrino measurements.« less

Authors:
 [1];  [2];  [1]; ORCiD logo [3];  [1];  [1];  [1];  [1];  [1];  [1];  [4];  [1];  [5];  [6];  [1];  [7];  [1];  [8]
  1. Russian Academy of Sciences (RAS), Moscow (Russian Federation). Inst. for Nuclear Research
  2. SNOLAB, Sudbury, ON (Canada)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Russian Academy of Sciences (RAS), Moscow (Russian Federation). Inst. for Nuclear Research; Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
  5. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  6. Univ. of Washington, Seattle, WA (United States). Center for Experimental Nuclear Physics and Astrophysics
  7. Carleton Univ., Ottawa, ON (Canada). Dept. of Physics
  8. Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Physics
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE; Russian Academy of Sciences (RAS); Russian Foundation for Basic Research (RFBR); Grant of the President of the Russian Federation
OSTI Identifier:
1440431
Report Number(s):
LA-UR-15-25591
Journal ID: ISSN 1063-7796; TRN: US1900729
Grant/Contract Number:  
AC52-06NA25396; 11-02-00806-a; 11-02-12130-ofi-m-2011; 13-02-12075-ofi-m-2013; NS-871.2012.2
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Particles and Nuclei
Additional Journal Information:
Journal Volume: 46; Journal Issue: 2; Journal ID: ISSN 1063-7796
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Sterile Neutrino; Solar Neutrino; Electron Neutrino; Active Neutrino; GALLEX

Citation Formats

Gavrin, V., Cleveland, B., Danshin, S., Elliott, Steven Ray, Gorbachev, V., Ibragimova, T., Kalikhov, A., Knodel, T., Kozlova, Yu., Malyshkin, Yu., Matveev, V., Mirmov, I., Nico, J., Robertson, R. G. H., Shikhin, A., Sinclair, D., Veretenkin, E., and Wilkerson, J. Current status of new SAGE project with 51Cr neutrino source. United States: N. p., 2015. Web. doi:10.1134/S1063779615020100.
Gavrin, V., Cleveland, B., Danshin, S., Elliott, Steven Ray, Gorbachev, V., Ibragimova, T., Kalikhov, A., Knodel, T., Kozlova, Yu., Malyshkin, Yu., Matveev, V., Mirmov, I., Nico, J., Robertson, R. G. H., Shikhin, A., Sinclair, D., Veretenkin, E., & Wilkerson, J. Current status of new SAGE project with 51Cr neutrino source. United States. https://doi.org/10.1134/S1063779615020100
Gavrin, V., Cleveland, B., Danshin, S., Elliott, Steven Ray, Gorbachev, V., Ibragimova, T., Kalikhov, A., Knodel, T., Kozlova, Yu., Malyshkin, Yu., Matveev, V., Mirmov, I., Nico, J., Robertson, R. G. H., Shikhin, A., Sinclair, D., Veretenkin, E., and Wilkerson, J. Sun . "Current status of new SAGE project with 51Cr neutrino source". United States. https://doi.org/10.1134/S1063779615020100. https://www.osti.gov/servlets/purl/1440431.
@article{osti_1440431,
title = {Current status of new SAGE project with 51Cr neutrino source},
author = {Gavrin, V. and Cleveland, B. and Danshin, S. and Elliott, Steven Ray and Gorbachev, V. and Ibragimova, T. and Kalikhov, A. and Knodel, T. and Kozlova, Yu. and Malyshkin, Yu. and Matveev, V. and Mirmov, I. and Nico, J. and Robertson, R. G. H. and Shikhin, A. and Sinclair, D. and Veretenkin, E. and Wilkerson, J.},
abstractNote = {A very short-baseline neutrino oscillation experiment with an intense 51Cr neutrino source is currently under construction at the Baksan Neutrino Observatory of the Institute for Nuclear Research RAS (BNO). The experiment, which is based on the existing SAGE experiment, will use an upgraded Gallium-Germanium Neutrino Telescope (GGNT) and an artificial 51Cr neutrino source with activity ~3 MCi to search for transitions of active neutrinos to sterile states with Δm2 ~1 eV2. The neutrino source will be placed in the center of a liquid Ga metal target that is divided into two concentric zones, internal and external. The average path length of neutrinos in each zone will be the same and the neutrino capture rate will be measured separately in each zone. The oscillation signature, which comes from the ratio of events in the near and far gallium volumes, will be largely free of systematic errors, such as may occur from cross section and source strength uncertainties, and will provide a clean signal of electron neutrino disappearance into a sterile state at baselines of about 0.6 and 2.0 m. The sensitivity to the disappearance of electron neutrinos is expected to be a few percent. Construction of this set of new facilities, including a two-zone tank for irradiation of 50 tons of Ga metal with the intense 51Cr source, as well as additional modules of the GGNT counting and extraction systems, is close to completion. In order to check the new facilities they will first be used for SAGE solar neutrino measurements.},
doi = {10.1134/S1063779615020100},
journal = {Physics of Particles and Nuclei},
number = 2,
volume = 46,
place = {United States},
year = {Sun Mar 15 00:00:00 EDT 2015},
month = {Sun Mar 15 00:00:00 EDT 2015}
}

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Penning-trap Q-value determination of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Ga</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>71</mml:mn></mml:mrow></mml:mmultiscripts><mml:mo stretchy="false">(</mml:mo><mml:mi>ν</mml:mi><mml:mo>,</mml:mo><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Ge</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>71</mml:mn></mml:mrow></mml:mmultiscripts></mml:math> reaction using threshold charge breeding of on-line produced isotopes
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Measurement of the solar neutrino capture rate with gallium metal. III. Results for the 2002–2007 data-taking period
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Improved Search for ν ¯ μ ν ¯ e Oscillations in the MiniBooNE Experiment
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Works referencing / citing this record:

Light sterile neutrinos
journal, March 2015


BEST potential in testing the eV-scale sterile neutrino explanation of reactor antineutrino anomalies
journal, June 2019