30TH INTERNATIONAL COSMIC RAY CONFERENCE BESS-Polar II experiment

• Main Authors: K. Yoshimura, K. Abe, H. Fuke, S. Haino, T. Hams, M. Hasegawa, A. Horikoshi, K. C. Kim, A. Kusumoto, M. H. Lee, Y. Makida, S. Matsuda, Y. Matsukawa, J. W. Mitchell, A. A. Moiseev, J. Nishimura, M. Nozaki, R. Orito, J. F. Ormes, K. Sakai, M. Sasaki, E. S. Seo, R. Shinoda R. E. Streitmatter, J. Suzuki, K. Tanaka, N. Thakur, T. Yamagami, A. Yamamoto, T. Yoshida
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Antarctic; Antarc*
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.6346

Abstract: BESS-Polar II (the 2nd phase of the BESS-Polar spectrometer) has been prepared for the next Antarctic campaign scheduled in December 2007. The aims of the experiment are precise measurements of the low-energy antiproton spectrum and search for cosmologically significant antimatter at this solar minimum period, with 5 times higher sensitivity than the previous measurements in BESS-Polar I. Most of the detector components have been redesigned and upgraded to improve their performance and to increase the data taking period and capacity.