The Role of Extragalactic Antimatter in Cosmic Ray Observations Near Earth
Author: Grimani, C.
Source: Astrophysics and Space Science, Volume 268, Number 4, 1999 , pp. 475-481(7)
Abstract:Quest for antimatter in cosmic rays has revealed no compelling evidence of primary, extragalactic antiparticles up to the present time. Recent positron and antiproton observations have been found to be consistent with a pure galactic origin up to energies of 50 GeV and 20 GeV respectively. In this paper it is discussed which role might be played by Ultra High Energy (UHE) extragalactic particles and antiparticles in cosmic-ray observations near Earth.
Document Type: Regular Paper
Affiliations: Istituto Nazionale di Fisica Nucleare, Via Pascoli, 06100 Perugia, Italy University of Urbino, Via S. Chiara, 61029 Urbino, Italy
Publication date: January 1, 1999