Status and recent results from the CREAM experiment

• Published in: Cosmic Rays for Particle and Astroparticle Physics
• Main Authors: Seo, E. S., Ahn, H. S., Bhoyar, P., Eaton, J., Ganel, O., Han, J. H., Haque, A., Kim, K. C., Kim, M. H., Lee, M. H., Lee, S. E., Lutz, L., Malinin, A., Ofoha, O., Ryu, S. S., Smith, B. P., Vartanyan, A., Walpole, P., Wu, J., Yoo, J. H., Yoon, Y. S., Anderson, T., Conklin, N. B., Coutu, S., Geske, M., Mognet, S. I., Barbier, L., Link, J. T., Mitchell, J. W., Barrau, A., Buénerd, M., Coste, B., Derome, L., Mangin Brinet, M., Putze, A., Sallaz Damaz, Y., Bazer Bachi, R., Beatty, J. J., Brandt, T. J., BIGONGIARI, GABRIELE, MAESTRO, PAOLO, Zei, R., Jeon, J. A., Na, G., Nam, J., Nam, S., Park, I. H., Park, N. H., Yang, J., Menchaca Rocha, A., Nutter, S. J.
• Other Authors: Giani, S, Leroy, C, Rancoita, PG, Bigongiari, Gabriele, Maestro, Paolo
• Format: Conference Object
• Language: English
• Published: WORLD SCIENTIFIC PUBLISHER 2011
• Subjects: Antarc*; Antarctica
• Online Access: http://hdl.handle.net/11365/44112; https://doi.org/10.1142/9789814329033_0035

The Cosmic Ray Energetics And Mass (CREAM) balloon-borne experiment has accumulated ∼156 days of exposure during five successful flights over Antarctica. Energy measurements are made with a transition radiation detector and an ionization calorimeter. Charge measurements are made with timing scintillators, pixelated Si, and Cherenkov detectors to minimize the effect of backscattered particles. High energy cosmic-ray data were collected over a wide energy range from ∼ 10^10 to ∼ 10^15 eV at an average altitude of ∼38.5 km, with ∼3.9 g/cm^2 atmospheric overburden. All cosmic-ray elements from protons (Z = 1) to iron nuclei (Z = 26) are separated with excellent charge resolution. The instrument performance, results from the ongoing data analysis, and their implications on cosmic-ray origin, acceleration and propagation are discussed.