Precise Measurement of Cosmic-Ray Proton and Helium Spectra with the BESS Spectrometer

By T. Sanuki, M. Motoki, Hiroshi Matsumoto, E. Seo, J. Z. Wang, K. Abe, K. Anraku, Y. Asaoka, M. Fujikawa, M. Imori and 24 more. 2000

278 citations recorded by the source corpus.

We report cosmic-ray proton and helium spectra in energy ranges of 1-120 GeV nucleon-1 and 1-54 GeV nucleon-1, respectively, measured by a flight of the Balloon-borne Experiment with Superconducting Spectrometer (BESS) in 1998. The magnetic rigidity of the cosmic ray was reliably determined by highly precise measurement of the circular track in a uniform solenoidal magnetic field of 1 T. Those spectra were determined within overall uncertainties of ±5% for protons and ±10% for helium nuclei including statistical and systematic errors.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/cf4d1f1698609edb4f654eb2a24bc8e56cd6f8ec

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In Nuclear and High Energy Physics

Citations in the corpus

FERMI OBSERVATIONS OF CASSIOPEIA AND CEPHEUS: DIFFUSE GAMMA-RAY EMISSION IN THE OUTER GALAXY (2009, background): “The proton spectrum is derived from a compilation of direct measurements (Alcaraz et al. 2000; Sanuki et al. 2000; Shikaze et al. 2007).”
A database of charged cosmic rays (2013, unknown): “– Balloon (1982/10): Garcia-Munoz et al. (1986) – Balloon (1984/09): Garcia-Munoz et al. (1986) – Balloon (1987/08): Evenson et al. (1995) – Balloon (1990/08): Evenson et al. (1995) – Balloon (1992/08): Evenson et al. (1995) – Balloon (1994/08): Evenson et al. (1995) – Balloon (1969/04+1970/11): Sil”
GeV OBSERVATIONS OF STAR-FORMING GALAXIES WITH THE FERMI LARGE AREA TELESCOPE (2012, unknown): “The diffuse neutral-pion-decay component for the Milky Way has spectral index∼ 2.75 above ∼ 1 GeV, matching the locally measured CR proton spectrum (Simpson 1983; Sanuki et al. 2000; Adriani et al. 2011).”
Antiprotons from Spallations of Cosmic Rays on Interstellar Matter (2001, methodology): “Figure 5 displays this computed antiproton Ñux along with experimental data collected by the BESS spectrometer during two Ñights in a period of minimal solar activity.”
Badhwar–O'Neill 2010 Galactic Cosmic Ray Flux Model—Revised (2010, methodology): “All of the modern low-energy measurements for H and He are from BESS.”
CONSTRAINTS ON COSMIC-RAY PROPAGATION MODELS FROM A GLOBAL BAYESIAN ANALYSIS (2010, methodology): “For this calculation the spectra of CR protons and He were adjusted to the BESS data (Sanuki et al. 2000).”