Measurements of primary and atmospheric cosmic-ray spectra with the BESS-TeV spectrometer
S. Haino(The University of Tokyo), T. Sanuki(The University of Tokyo), K. Abe(Kobe University), K. Anraku(The University of Tokyo), Y. Asaoka(Bunkyo University), H. Fuke(High Energy Accelerator Research Organization), M. Imori(Bunkyo University), A. Itasaki(Kobe University), T. Maeno(Kobe University), Y. Makida(High Energy Accelerator Research Organization), S. Matsuda(The University of Tokyo), N. Matsui(Bunkyo University), H. Matsumoto(Bunkyo University), J. W. Mitchell(Goddard Space Flight Center), A. A. Moiseev(Goddard Space Flight Center), Jun Nishimura(Bunkyo University), M. Nozaki(Kobe University), S. Orito(Bunkyo University), J. F. Ormes(National Aeronautics and Space Administration), M. Sasaki(Goddard Space Flight Center), E. S. Seo(University of Maryland, College Park), Y. Shikaze(Kobe University), R. E. Streitmatter(Goddard Space Flight Center), J. Suzuki(High Energy Accelerator Research Organization), Y. Takasugi(Kobe University), К. Таnака(High Energy Accelerator Research Organization), K. Tanizaki(Kobe University), T. Yamagami(Institute of Space and Astronautical Science), A. Yamamoto(High Energy Accelerator Research Organization), Y. Yamamoto(The University of Tokyo), Kazuhiro Yamato(Kobe University), T. Yoshida(High Energy Accelerator Research Organization), K. Yoshimura(High Energy Accelerator Research Organization)
Cited by 273Open Access
Abstract
Primary and atmospheric cosmic-ray spectra were precisely measured with the BESS-TeV spectrometer. The spectrometer was upgraded from BESS-98 to achieve seven times higher resolution in momentum measurement. We report absolute fluxes of primary protons and helium nuclei in the energy ranges, 1–540 GeV and 1–250 GeV/n, respectively, and absolute flux of atmospheric muons in the momentum range 0.6–400 GeV/c.
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