Search for heavy antinuclei in the cosmic radiation

Details Search for heavy antinuclei in the cosmic radiation Search for heavy antinuclei in the cosmic radiation

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...164..231l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 164, no. 2, Aug. 1986, p. 231-236.

Astronomy and Astrophysics

Astrophysics

1

Antimatter, Cosmic Rays, Heavy Nuclei, Nuclear Radiation, Astrophysics, Cerenkov Radiation, Cosmology, Heao 3

Scientific paper

Data from the Danish-French Cosmic Ray Spectrometer on the HEAO-3 satellite have been searched for indications of the existence of antinuclei in the cosmic radiation among the elements heavier than fluorine. No events were found satisfying all the criteria for being a negatively charged heavy nucleus, whereas the same criteria applied to select nuclei with a definitively positive charge 0.00015 yielded 20456 events. It is concluded that the ratio of antinuclei to nuclei with Z (absolute value) greater than 9 in the cosmic radiation is less than 0.00015 at the 95 percent confidence level. This result is consistent with earlier results obtained for all cosmic-ray elements with Z greater than 2.

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