Orateur
Dr
Antje Putze
(Oskar Klein Center / Stockholm University / KTH)
Description
One century after the discovery of cosmic rays, many questions remain open on its origin, nature, and transport. Experiments to detect them directly have constantly improved and are today highly diversified to address different cosmic-ray processes over a wide energy range. Indeed, precise measurements of cosmic rays in an energy range from ~10^4 eV to ~10^15 eV allow one to study the mechanism of acceleration of primary cosmic rays up to very high energy, to characterise their possible sources, and to clarify their interactions with the interstellar medium. Such measurements of elemental cosmic-ray spectra require complementary and redundant charge and energy identification detectors, such as the balloon-borne Cosmic Ray Energetics And Mass (CREAM) experiment, which measures cosmic rays from 10^12 eV to 10^15 eV over the elements ranging from protons to iron. I will present the current status of direct cosmic-ray measurements with the focus on the latest CREAM results. Finally, the cosmic-ray identification above the knee is shortly discussed.
Auteur principal
Dr
Antje Putze
(Oskar Klein Center / Stockholm University / KTH)
