%0 Journal Article
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%@resumeid 8JMKD3MGP5W/3C9JJAE
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%X The existence of significant fluxes of antiparticles in the Earth magnetosphere has been predicted on theoretical considerations in this article. These antiparticles (positrons or antiprotons) at several hundred kilometers of altitudes, we believe are not of direct extraterrestrial origin, but are the natural products of nuclear reactions of the high energy primary cosmic rays (CR) and trapped protons (TP) confined in the terrestrial radiation belt, with the constituents of terrestrial atmosphere. Extraterrestrial positrons and antiprotons born in nuclear reactions of the same CR particles passing through only 5-7 g/cm(2) of interstellar matter, exhibit lower fluxes compared to the antiprotons born at hundreds of g/cm(2) in the atmosphere, which when confined in the magnetic field of the Earth (in any other planet), get accumulated. We present the results of the computations of the antiproton fluxes at 10 MeV to several GeV energies due to CR particle interactions with the matter in the interstellar space, and also with the residual atmosphere at altitudes of similar to1000 km over the Earth's surface. The estimates show that the magnetospheric antiproton fluxes are greater by two orders of magnitude compared to the extraterrestrial fluxes measured at energies < 1-2 GeV. (C) 2004 COSPAR. Published by Elsevier Ltd. All rights reserved.
%N 6
%T Trapped antiprotons produced by cosmic rays in the eartth's magnetosphere
%@secondarytype PRE PI
%K antiprotons, cosmic rays, Earth's magnetosphere, trapped particles/PROTON.
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%@group RSU-INPE-MCT-BR
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%@group RSU-INPE-MCT-BR
%3 trapped.pdf
%@secondarykey INPE-12555-PRE/7852
%@copyholder SID/SCD
%@issn 0273-1177
%2 sid.inpe.br/marciana/2005/01.07.15.39.26
%@affiliation Instituto Nacional de Pesquisas Espacais, Divisão de Astrofisica(INPE,DAS)
%@affiliation Instituto Nacional de Pesquisas Espacais, Unidade Regional Sul de Pesquisas Espaciais
%@affiliation Russian Acad Sci, Space Res Inst, Moscow, Russia
%@affiliation Soutthern Regional Space Research Center - CRSPE/INPE - MCT, Santa Maria, Brazil
%@affiliation Weber State Univ, Ogden, UT 84408 USA
%B Advances in Space Research
%@versiontype publisher
%P 1433-1437
%4 sid.inpe.br/marciana/2005/01.07.15.39
%@documentstage not transferred
%D 2004
%V 34
%A Pugacheva, G.,
%A Gusev, A. A.,
%A Jayanthi, Udaya Bhaskaram,
%A Schuch, Nelson Jorge,
%A Spjeldvik, W. N.,
%@dissemination WEBSCI; PORTALCAPES; MGA; COMPENDEX.
%@area CEA