Brookhaven solar neutrino detector and collapsing stars

Details Brookhaven solar neutrino detector and collapsing stars Brookhaven solar neutrino detector and collapsing stars

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.251..486e&link_type=abstract

Nature, Volume 251, Issue 5475, pp. 486-488 (1974).

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Scientific paper

THE Brookhaven solar neutrino detector has been in continuous operation in its present form since 1970. The basis of the detection method is the inverse beta decay reaction on 37Cl to produce 37Ar (t½ = 35.1 d) which can be detected at a sensitivity level of 10 to 20 atoms. The detector, consisting of 380,000 1 of C2Cl4, is described in detail elsewhere (refs 1-3 and references therein). Measurements with this detection system establish1-3 an upper limit for solar neutrinos of 1 SNU (1 SNU = 10-36 captures/37Cl atom-s). This limit is in substantial disagreement with accepted solar model calculations4 which predict a result of 5.6 SNU (ref. 5). The significance of this discrepancy has been recently analysed in detail6; this number also represents a base line for comparison with other possible sources of high energy neutrinos3,7, in particular those produced by collapsing stars.

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