Precise measurement of cosmic-ray proton and helium spectra with the BESS spectrometer

被引：272

作者：

Sanuki, T ^{[1
]}

Motoki, M

Matsumoto, H

Seo, ES

Wang, JZ

Abe, K

Anraku, K

Asaoka, Y

Fujikawa, M

Imori, M

Maeno, T

Makida, Y

Matsui, N

Matsunaga, H

Mitchell, J

Mitsui, T

Moiseev, A

Nishimura, J

Nozaki, M

Orito, S

Ormes, J

Saeki, T

Sasaki, M

Shikaze, Y

Sonoda, T

Streitmatter, R

Suzuki, J

Tanaka, K

Ueda, I

Yajima, N

Yamagami, T

Yamamoto, A

Yoshida, T

Yoshimura, K

机构：

[1] Univ Tokyo, Bunkyo Ku, Tokyo 1130033, Japan

[2] Univ Maryland, College Pk, MD 20742 USA

[3] Kobe Univ, Kobe, Hyogo 6578501, Japan

[4] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan

[5] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[6] Inst Space & Astronaut Sci, Kanagawa 2298510, Japan

来源：

ASTROPHYSICAL JOURNAL | 2000年 / 545卷 / 02期

关键词：

cosmic rays; elementary particles;

D O I：

10.1086/317873

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：1135 / 1142

页数：8

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