Speaker
Dr
Nicolas PICOT-CLEMENTE
(Institute for Physical Science and Technology, University of Maryland)
Description
The isotopes $^{2}$H and $^{3}$He in the cosmic radiation are mainly secondary products from interactions of primary cosmic rays in the interstellar medium. Secondary-to-primary ratios give important information on processes that occurred during the propagation of cosmic rays, independent of the unknown source spectrum. Boron-to-Carbon ratio data have been primarily used to study cosmic-ray transport. As statistics have increased and mass resolution have improved, recent measurements on cosmic-ray hydrogen and helium isotopes provide another probe for their propagation in the Galaxy. In this paper, we use the GALPROP numerical code for calculating the propagation of relativistic charged particles. The standard GALPROP code had to be modified to be suitable for hydrogen and helium isotopes in the energy region 0.2 to 1.5 GeV/n. The proton fusion process for production of $^{2}$H had to be added, and production cross sections for light isotopes had to be updated at these energies. We will present the modifications made on GALPROP for its application to proton and helium isotopes.
| Registration number following "ICRC2015-I/" | 934 |
|---|---|
| Collaboration | -- not specified -- |
Author
Dr
Nicolas PICOT-CLEMENTE
(Institute for Physical Science and Technology, University of Maryland)
Co-authors
Dr
Andrew STRONG
(Max-Planck-Institut fuer extraterrestrische Physik)
Prof.
Eun Suk Seo
(University of Maryland (US))
Yuxi Lu
(Department of Physics, University of Maryland)
