THE RUSSIAN-AMERICAN GALLIUM EXPERIMENT (SAGE) CR NEUTRINO SOURCE MEASUREMENT

Citation
Jn. Abdurashitov et al., THE RUSSIAN-AMERICAN GALLIUM EXPERIMENT (SAGE) CR NEUTRINO SOURCE MEASUREMENT, Physical review letters, 77(23), 1996, pp. 4708-4711
Citations number
24
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
77
Issue
23
Year of publication
1996
Pages
4708 - 4711
Database
ISI
SICI code
0031-9007(1996)77:23<4708:TRGE(C>2.0.ZU;2-W
Abstract
The solar neutrino capture rate measured by SAGE is well below that pr edicted by solar models. To check the overall experimental efficiency, we exposed 13 tonnes of Ga metal to a reactor-produced 517 kCi source of Cr-51. The ratio of the measured production rate to that predicted from the source activity is 0.95 +/- 0.11(stat) +0.05/-0.08(syst). Th is agreement verifies that the experimental efficiency is measured cor rectly, establishes that there are no unknown systematic errors at the 10% level, and provides considerable evidence for the reliability of the solar neutrino measurement.