New calculation of radioactive secondaries in cosmic rays

Abstract

We use a new version of our numerical model for particle propagation in the Galaxy to study radioactive secondaries. For evaluation of the production cross sections we use the Los Alamos compilation of all available experimental cross sections together with calculations using the improved Cascade-Exciton Model code CEM2k. Using the radioactive secondary ratios 26Al/27Al, 36Cl/Cl, 54Mn/Mn, we show how the improved cross-section calculations together with the new propagation code allow us to better constrain the size of the CR halo.

error in units (GeV->MeV) in Fig.1 is corrected; 4 pages, 8 ps-figures, to appear in the Proc. of 27th Int. Cosmic Ray Conf. (Hamburg, 2001), OG 1.3. More details can be found at http://www.gamma.mpe-garching.mpg.de/~aws/aws.html

References in corpus (2)

• New developments in the GALPROP CR propagation model
• Secondary Antiprotons in Cosmic Rays

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• Fermi-LAT Observations of High- and Intermediate-Velocity Clouds: Tracing Cosmic Rays in the Halo of the Milky Way
• CEM2k and LAQGSM as Event Generators for Space-Radiation-Shielding and Cosmic-Ray-Propagation Applications
• Propagation of secondary antiprotons and cosmic rays in the Galaxy