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Antiprotons of galactic cosmic radiation in the PAMELA experiment
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2013 (English)In: Bulletin of the Russian Academy of Sciences: Physics, ISSN 1062-8738, Vol. 77, no 5, 602-605 p.Article in journal (Refereed) Published
Abstract [en]

A method for antiproton selection against a background of electrons, based on a mathematical model of data classification using variations in interparticle interaction in a calorimeter, and a method for excluding events accompanied by scattering in the inner detectors of a tracking system (which result in errors in the measured trajectory's curvature and charge sign) from analysis are discussed in this paper. Antiproton spectra and antiproton/proton flux ratio at energies of 0.06 to 350 GeV with statistics of events surpassing those in [1] are obtained. The results can be used to create models for the generation and distribution of particles in the Galaxy, and for searching and studying the nature of hypothetical dark matter particles.

Place, publisher, year, edition, pages
2013. Vol. 77, no 5, 602-605 p.
Keyword [en]
Charge sign, Dark matter particles, Data classification, Distribution of particles, Galactic cosmic radiations, Inner Detector, Inter-particle interaction, Tracking system, Association reactions, Galaxies, Mathematical models, Protons
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-134484DOI: 10.3103/S1062873813050389Scopus ID: 2-s2.0-84879095711OAI: oai:DiVA.org:kth-134484DiVA: diva2:667058
Note

QC 20131125

Available from: 2013-11-25 Created: 2013-11-25 Last updated: 2013-11-25Bibliographically approved

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Pearce, Mark

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