Successive measurements of cosmic-ray antiproton spectrum in a positive phase of the solar cycle

T. Maeno; S. Orito; H. Matsunaga; K. Abe; K. Anraku; Y. Asaoka; M. Fujikawa; M. Imori; Y. Makida; N. Matsui; H. Matsumoto; J. Mitchell; T. Mitsui; A. Moiseev; M. Motoki; J. Nishimura; M. Nozaki; J. Ormes; T. Saeki; T. Sanuki; M. Sasaki; E. S. Seo; Y. Shikaze; T. Sonoda; R. Streitmatter; J. Suzuki; K. Tanaka; I. Ueda; J. Z. Wang; N. Yajima; T. Yamagami; A. Yamamoto; T. Yoshida; K. Yoshimura

doi:10.1016/S0927-6505(01)00107-4

Successive measurements of cosmic-ray antiproton spectrum in a positive phase of the solar cycle

T. Maeno^*, S. Orito, H. Matsunaga, K. Abe, K. Anraku, Y. Asaoka, M. Fujikawa, M. Imori, Y. Makida, N. Matsui, H. Matsumoto, J. Mitchell, T. Mitsui, A. Moiseev, M. Motoki, J. Nishimura, M. Nozaki, J. Ormes, T. Saeki, T. SanukiM. Sasaki, E. S. Seo, Y. Shikaze, T. Sonoda, R. Streitmatter, J. Suzuki, K. Tanaka, I. Ueda, J. Z. Wang, N. Yajima, T. Yamagami, A. Yamamoto, T. Yoshida, K. Yoshimura

^*Corresponding author for this work

Waseda Research Institute for Science and Engineering

Research output: Contribution to journal › Article › peer-review

143 Citations (Scopus)

Abstract

The energy spectrum of cosmic-ray antiprotons (p̄'s) has been measured by BESS successively in 1993, 1995, 1997 and 1998. In total, 848 p̄'s were clearly identified in energy range 0.18-4.20 GeV. From these successive measurements of the p̄ spectrum at various solar activity, we discuss about the effect of the solar modulation and the origin of cosmic-ray p̄'s. The p̄/p ratios showed no distinctive year-to-year variation during the positive Sun's polarity phase.

Original language	English
Pages (from-to)	121-128
Number of pages	8
Journal	Astroparticle Physics
Volume	16
Issue number	2
DOIs	https://doi.org/10.1016/S0927-6505(01)00107-4
Publication status	Published - 2001 Nov

Keywords

95.85.Ry
98.70.Sa
Antiproton
Cosmic-ray
Measurements
Solar modulation

ASJC Scopus subject areas

Astronomy and Astrophysics

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10.1016/S0927-6505(01)00107-4

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Maeno, T., Orito, S., Matsunaga, H., Abe, K., Anraku, K., Asaoka, Y., Fujikawa, M., Imori, M., Makida, Y., Matsui, N., Matsumoto, H., Mitchell, J., Mitsui, T., Moiseev, A., Motoki, M., Nishimura, J., Nozaki, M., Ormes, J., Saeki, T., ... Yoshimura, K. (2001). Successive measurements of cosmic-ray antiproton spectrum in a positive phase of the solar cycle. Astroparticle Physics, 16(2), 121-128. https://doi.org/10.1016/S0927-6505(01)00107-4

Maeno, T, Orito, S, Matsunaga, H, Abe, K, Anraku, K, Asaoka, Y, Fujikawa, M, Imori, M, Makida, Y, Matsui, N, Matsumoto, H, Mitchell, J, Mitsui, T, Moiseev, A, Motoki, M, Nishimura, J, Nozaki, M, Ormes, J, Saeki, T, Sanuki, T, Sasaki, M, Seo, ES, Shikaze, Y, Sonoda, T, Streitmatter, R, Suzuki, J, Tanaka, K, Ueda, I, Wang, JZ, Yajima, N, Yamagami, T, Yamamoto, A, Yoshida, T & Yoshimura, K 2001, 'Successive measurements of cosmic-ray antiproton spectrum in a positive phase of the solar cycle', Astroparticle Physics, vol. 16, no. 2, pp. 121-128. https://doi.org/10.1016/S0927-6505(01)00107-4

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title = "Successive measurements of cosmic-ray antiproton spectrum in a positive phase of the solar cycle",

abstract = "The energy spectrum of cosmic-ray antiprotons ({\=p}'s) has been measured by BESS successively in 1993, 1995, 1997 and 1998. In total, 848 {\=p}'s were clearly identified in energy range 0.18-4.20 GeV. From these successive measurements of the {\=p} spectrum at various solar activity, we discuss about the effect of the solar modulation and the origin of cosmic-ray {\=p}'s. The {\=p}/p ratios showed no distinctive year-to-year variation during the positive Sun's polarity phase.",

keywords = "95.85.Ry, 98.70.Sa, Antiproton, Cosmic-ray, Measurements, Solar modulation",

author = "T. Maeno and S. Orito and H. Matsunaga and K. Abe and K. Anraku and Y. Asaoka and M. Fujikawa and M. Imori and Y. Makida and N. Matsui and H. Matsumoto and J. Mitchell and T. Mitsui and A. Moiseev and M. Motoki and J. Nishimura and M. Nozaki and J. Ormes and T. Saeki and T. Sanuki and M. Sasaki and Seo, {E. S.} and Y. Shikaze and T. Sonoda and R. Streitmatter and J. Suzuki and K. Tanaka and I. Ueda and Wang, {J. Z.} and N. Yajima and T. Yamagami and A. Yamamoto and T. Yoshida and K. Yoshimura",

year = "2001",

month = nov,

doi = "10.1016/S0927-6505(01)00107-4",

language = "English",

volume = "16",

pages = "121--128",

journal = "Astroparticle Physics",

issn = "0927-6505",

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TY - JOUR

T1 - Successive measurements of cosmic-ray antiproton spectrum in a positive phase of the solar cycle

AU - Maeno, T.

AU - Orito, S.

AU - Matsunaga, H.

AU - Abe, K.

AU - Anraku, K.

AU - Asaoka, Y.

AU - Fujikawa, M.

AU - Imori, M.

AU - Makida, Y.

AU - Matsui, N.

AU - Matsumoto, H.

AU - Mitchell, J.

AU - Mitsui, T.

AU - Moiseev, A.

AU - Motoki, M.

AU - Nishimura, J.

AU - Nozaki, M.

AU - Ormes, J.

AU - Saeki, T.

AU - Sanuki, T.

AU - Sasaki, M.

AU - Seo, E. S.

AU - Shikaze, Y.

AU - Sonoda, T.

AU - Streitmatter, R.

AU - Suzuki, J.

AU - Tanaka, K.

AU - Ueda, I.

AU - Wang, J. Z.

AU - Yajima, N.

AU - Yamagami, T.

AU - Yamamoto, A.

AU - Yoshida, T.

AU - Yoshimura, K.

PY - 2001/11

Y1 - 2001/11

N2 - The energy spectrum of cosmic-ray antiprotons (p̄'s) has been measured by BESS successively in 1993, 1995, 1997 and 1998. In total, 848 p̄'s were clearly identified in energy range 0.18-4.20 GeV. From these successive measurements of the p̄ spectrum at various solar activity, we discuss about the effect of the solar modulation and the origin of cosmic-ray p̄'s. The p̄/p ratios showed no distinctive year-to-year variation during the positive Sun's polarity phase.

AB - The energy spectrum of cosmic-ray antiprotons (p̄'s) has been measured by BESS successively in 1993, 1995, 1997 and 1998. In total, 848 p̄'s were clearly identified in energy range 0.18-4.20 GeV. From these successive measurements of the p̄ spectrum at various solar activity, we discuss about the effect of the solar modulation and the origin of cosmic-ray p̄'s. The p̄/p ratios showed no distinctive year-to-year variation during the positive Sun's polarity phase.

KW - 95.85.Ry

KW - 98.70.Sa

KW - Antiproton

KW - Cosmic-ray

KW - Measurements

KW - Solar modulation

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U2 - 10.1016/S0927-6505(01)00107-4

DO - 10.1016/S0927-6505(01)00107-4

M3 - Article

AN - SCOPUS:18044400621

SN - 0927-6505

VL - 16

SP - 121

EP - 128

JO - Astroparticle Physics

JF - Astroparticle Physics

IS - 2

ER -

Successive measurements of cosmic-ray antiproton spectrum in a positive phase of the solar cycle

Abstract

Keywords

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