Original scientific paper

Derivation of cosmic ray positron spectrum in the interstellar space

Pratibha Pal ; Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India
Deba Prasad Bhattacharyya ; Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India

Abstract

Using the latest primary cosmic ray nucleon spectrum of Allkofer, Bhattacharyya and Capdevielle and the precise Fermilab Single Arm Spectrometer (SAS) data on pp → π+ X inclusive reaction after Brenner et al. the energy spectrum of cosmic ray positron in the interstellar space has been estimated by adopting the leaky box model for cosmic ray propagation. The calculated result has been compared with the balloon flight positron flux data of Fanselow et al. and Buffington et al. The present estimate is higher when compared to the calculated results of Giler, Wdowczyk and Wolfendale and Tan and Ng.

Keywords

Hrčak ID:

331488

URI

https://hrcak.srce.hr/331488

Publication date:

7.5.1989.

Article data in other languages: croatian

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