The Spectrum of Antiprotons in Galactic Wind Cosmic-Ray Propagation Model

Details The Spectrum of Antiprotons in Galactic Wind Cosmic-Ray Propagation Model The Spectrum of Antiprotons in Galactic Wind Cosmic-Ray Propagation Model

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aps..aprw16013s&link_type=abstract

American Physical Society, April Meeting, April 29-May 2, 2000 Long Beach, CA, abstract #W16.013

Physics

Scientific paper

The existence of antiprotons in cosmic-rays is hardly surprising. In any realistic propagation model, the interaction of primary cosmic-rays with the intervening medium gives rise to a small, but measurable, flux of secondary antiprotons. Whether the flux of these secondary antiprotons is complemented by a primary component is still unknown. However cosmic-ray antimatter experiments are becoming increasingly capable of measuring the spectrum of antiprotons and thus distinguishing among different origin and propagation models. In this talk we will discuss the calculation of the secondary antiproton spectrum in a galactic wind model and compare and contrast it with the standard leaky box model of propagation.

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