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Extraterrestrial possibilities to measure cosmic antimatter
Author(s) -
Halm I.
Publication year - 1986
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2113070513
Subject(s) - antimatter , physics , cosmic ray , cosmology , antiproton , cosmic cancer database , pamela detector , positron , astrophysics , astronomy , range (aeronautics) , nuclear physics , ultra high energy cosmic ray , electron , materials science , proton , composite material
The question of the existence of primary cosmic antimatter (PCA) is of fundamental interest for cosmogony and cosmology. The relcvance of PCA to processes in the very early Universe (corresponding to an energy of 10 15 GeV) is shown. A satellite experiment consisting of a magnet spectrometer is proposed, which identifies antiprotons (p̄), antihelium nuclei (α), and positrons (e + ) in the kinetic energy range from 100 MeV to 10 GeV to get statistically significant p̄‐ and e + ‐spectra and possibily some α events in a year of exposure.