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Astrophysics Research and Analysis Program

Cosmic Ray Energetics And Mass (CREAM) launch and operations, PSU Co-I

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Cosmic Ray Energetics And Mass (CREAM) launch and operations, PSU Co-I
This proposal covers the activities of the Penn State group on the BACCUS high-altitude balloon experiment in Antarctica and on the CREAM mission to the ISS. These projects together will achieve definitive measurements of the cosmic-ray elemental spectra into the PeV range (nuclei) and of cosmic-ray electrons into the TeV range, as well as detailed studies of secondary nuclei (such as B or the sub-Fe elements). These are the experimental measurements needed to sort out the details of cosmic-ray acceleration and propagation in the Galaxy, a long standing puzzle in particle astrophysics. More »

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