Title

Preliminary results from the Russian-American Gallium Experiment Cr-neutrino source measurement

Authors

S. R. Elliott, University of Washington
J. N. Abdurashitov, Institute for Nuclear Research of the Russian Academy of Sciences
T. J. Bowles, Los Alamos National Laboratory
M. L. Cherry, Louisiana State University
B. T. Cleveland, University of Pennsylvania
T. Daily, University of Pennsylvania
R. Davis, University of Pennsylvania
V. N. Gavrin, Institute for Nuclear Research of the Russian Academy of Sciences
S. V. Girin, Institute for Nuclear Research of the Russian Academy of Sciences
V. V. Gorbatschev, Institute for Nuclear Research of the Russian Academy of Sciences
A. O. Gusev, Institute for Nuclear Research of the Russian Academy of Sciences
A. V. Kalikhov, Institute for Nuclear Research of the Russian Academy of Sciences
N. G. Khairnasov, Institute for Nuclear Research of the Russian Academy of Sciences
V. N. Karaulov, Mangyshlak Atomic Energy Complex
T. V. Knodel, Institute for Nuclear Research of the Russian Academy of Sciences
V. N. Kornoukhov, Institute for Nuclear Research of the Russian Academy of Sciences
Yu S. Khomyakov, State Research Center of Russian Federation - Institute of Physics and Power Engineering
K. Lande, University of Pennsylvania
C. K. Lee, University of Pennsylvania
V. L. Levitin, Mangyshlak Atomic Energy Complex
V. I. Maev, Mangyshlak Atomic Energy Complex
I. N. Mirmov, Institute for Nuclear Research of the Russian Academy of Sciences
P. I. Nazarenko, Mangyshlak Atomic Energy Complex
J. S. Nico, Los Alamos National Laboratory
A. M. Pshukov, Institute for Nuclear Research of the Russian Academy of Sciences
A. M. Shalagin, Institute for Nuclear Research of the Russian Academy of Sciences
A. A. Shikhin, Institute for Nuclear Research of the Russian Academy of Sciences
V. S. Shkol'nik, Mangyshlak Atomic Energy Complex
N. V. Skorikov, Mangyshlak Atomic Energy Complex
W. A. Teasdale, Los Alamos National Laboratory
E. P. Veretenkin, Institute for Nuclear Research of the Russian Academy of Sciences
V. M. Vermul, Institute for Nuclear Research of the Russian Academy of Sciences
D. L. Wark, Los Alamos National Laboratory

Document Type

Article

Publication Date

1-1-1996

Abstract

The Russian-American Gallium Experiment has been collecting solar neutrino data since early 1990. The flux measurement of solar neutrinos is well below that expected from solar models. We discuss the initial results of a measurement of experimental efficiencies by exposing the gallium target to neutrinos from an artificial source. The capture rate of neutrinos from this source is very close to that which is expected. The result can be expressed as a ratio of the measured capture rate to the anticipated rate from the source activity. This ratio is 0.93 + 0.15, - 0.17 where the systematic and statistical errors have been combined. To first order the experimental efficiencies are in agreement with those determined during solar neutrino measurements and in previous auxiliary measurements. One must conclude that the discrepancy between the measured solar neutrino flux and that predicted by the solar models can not arise from an experimental artifact.

Publication Source (Journal or Book title)

Nuclear Physics B - Proceedings Supplements

First Page

370

Last Page

374

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