0 references
Results from the Soviet-American gallium experiment
1991
A. I. Abazov, O. L. Anosov, E. L. Faizov, В. Н. Гаврин, A. V. Kalikhov, T. V. Knodel, I. I. Knyshenko, В. Н. Корноухов, S. A. Mezentseva, I. N. Mirmov, A. V. Ostrinsky, A. M. Pshukov, N.Ye. Revzin, A. A. Shikhin, P. V. Timofeyev, E. P. Veretenkin, V Vermul, G.T. Zatsepin, T. J. Bowles, B. T. Cleveland, S. R. Elliott, H.A. O’Brien, D. Wark, J. F. Wilkerson, Rebecca Davis, K. Lande, M. L. Cherry, R. T. Kouzes
Abstract
A radiochemical {sup 71}Ga-{sup 71}Ge experiment to determine the primary flux of neutrinos from the Sun has begun operation at the Baksan Neutrino Observatory. The number of {sup 71}Ge atoms extracted from thirty tons of gallium was measured in five runs during the period of January to July 1990. Assuming that the extraction efficiency for {sup 71}Ge atoms produced by solar neutrinos is the same as from natural Ge carrier, we observed the capture rate to be 20 + 15/{minus}20 (stat) {plus_minus} 32 (syst) SNU, resulting in a limit of less than 79 SNU (90% CL). This is to be compared with 132 SNU predicted by the Standard Solar Model.
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