Measurement of cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight in Antarctica

K. Sakai; 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; J. Nishimura; M. Nozaki; R. Orito; J. F. Ormes; M. Sasaki; E. S. Seo; R. Shinoda; R. E. Streitmatter; J. Suzuki; K. Tanaka; N. Thakur; T. Yamagami; A. Yamamoto; T. Yoshida; K. Yoshimura

doi:10.7529/ICRC2011/V06/1280

Measurement of cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight in Antarctica

K. Sakai, 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, J. Nishimura, M. Nozaki, R. Orito, J. F. Ormes, M. Sasaki, E. S. SeoR. Shinoda, R. E. Streitmatter, J. Suzuki, K. Tanaka, N. Thakur, T. Yamagami, A. Yamamoto, T. Yoshida, K. Yoshimura

研究成果 › 査読

抄録

The energy spectrum of cosmic-ray antiprotons (p's) has been measured in the range 0.17 to 3.5 GeV, based on 7886 p's collected by the BESS-Polar II instrument during a long duration flight over Antarctica in a Solar minimum period of December 2007 through January 2008. The p spectrum measured by BESS-Polar II shows good consistency with the secondary p calculations. Given this background of secondary p's, cosmologically primary p's have been searched for using the observed p spectrum. BESS-Polar II result shows no evidence of primary p's that originated from the evaporation of PBH.

本文言語	English
ページ	111-114
ページ数	4
DOI	https://doi.org/10.7529/ICRC2011/V06/1280
出版ステータス	Published - 2011
外部発表	はい
イベント	32nd International Cosmic Ray Conference, ICRC 2011 - Beijing 継続期間: 8月 11 2011 → 8月 18 2011

Other

Other	32nd International Cosmic Ray Conference, ICRC 2011
国/地域	China
City	Beijing
Period	8/11/11 → 8/18/11

ASJC Scopus subject areas

核物理学および高エネルギー物理学

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10.7529/ICRC2011/V06/1280

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Sakai, K., Abe, K., Fuke, H., Haino, S., Hams, T., Hasegawa, M., Horikoshi, A., Kim, K. C., Kusumoto, A., Lee, M. H., Makida, Y., Matsuda, S., Matsukawa, Y., Mitchell, J. W., Nishimura, J., Nozaki, M., Orito, R., Ormes, J. F., Sasaki, M., ... Yoshimura, K. (2011). Measurement of cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight in Antarctica. 111-114. Paper presented at 32nd International Cosmic Ray Conference, ICRC 2011, Beijing, China. https://doi.org/10.7529/ICRC2011/V06/1280

Sakai, K, Abe, K, Fuke, H, Haino, S, Hams, T, Hasegawa, M, Horikoshi, A, Kim, KC, Kusumoto, A, Lee, MH, Makida, Y, Matsuda, S, Matsukawa, Y, Mitchell, JW, Nishimura, J, Nozaki, M, Orito, R, Ormes, JF, Sasaki, M, Seo, ES, Shinoda, R, Streitmatter, RE, Suzuki, J, Tanaka, K, Thakur, N, Yamagami, T, Yamamoto, A, Yoshida, T & Yoshimura, K 2011, 'Measurement of cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight in Antarctica', Paper presented at 32nd International Cosmic Ray Conference, ICRC 2011, Beijing, 8/11/11 - 8/18/11 pp. 111-114. https://doi.org/10.7529/ICRC2011/V06/1280

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title = "Measurement of cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight in Antarctica",

abstract = "The energy spectrum of cosmic-ray antiprotons (p's) has been measured in the range 0.17 to 3.5 GeV, based on 7886 p's collected by the BESS-Polar II instrument during a long duration flight over Antarctica in a Solar minimum period of December 2007 through January 2008. The p spectrum measured by BESS-Polar II shows good consistency with the secondary p calculations. Given this background of secondary p's, cosmologically primary p's have been searched for using the observed p spectrum. BESS-Polar II result shows no evidence of primary p's that originated from the evaporation of PBH.",

keywords = "Antiproton, BESS-polar II",

author = "K. Sakai and K. Abe and H. Fuke and S. Haino and T. Hams and M. Hasegawa and A. Horikoshi and Kim, {K. C.} and A. Kusumoto and Lee, {M. H.} and Y. Makida and S. Matsuda and Y. Matsukawa and Mitchell, {J. W.} and J. Nishimura and M. Nozaki and R. Orito and Ormes, {J. F.} and M. Sasaki and Seo, {E. S.} and R. Shinoda and Streitmatter, {R. E.} and J. Suzuki and K. Tanaka and N. Thakur and T. Yamagami and A. Yamamoto and T. Yoshida and K. Yoshimura",

year = "2011",

doi = "10.7529/ICRC2011/V06/1280",

language = "English",

pages = "111--114",

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AU - Sakai, K.

AU - Abe, K.

AU - Fuke, H.

AU - Haino, S.

AU - Hams, T.

AU - Hasegawa, M.

AU - Horikoshi, A.

AU - Kim, K. C.

AU - Kusumoto, A.

AU - Lee, M. H.

AU - Makida, Y.

AU - Matsuda, S.

AU - Matsukawa, Y.

AU - Mitchell, J. W.

AU - Nishimura, J.

AU - Nozaki, M.

AU - Orito, R.

AU - Ormes, J. F.

AU - Sasaki, M.

AU - Seo, E. S.

AU - Shinoda, R.

AU - Streitmatter, R. E.

AU - Suzuki, J.

AU - Tanaka, K.

AU - Thakur, N.

AU - Yamagami, T.

AU - Yamamoto, A.

AU - Yoshida, T.

AU - Yoshimura, K.

PY - 2011

Y1 - 2011

N2 - The energy spectrum of cosmic-ray antiprotons (p's) has been measured in the range 0.17 to 3.5 GeV, based on 7886 p's collected by the BESS-Polar II instrument during a long duration flight over Antarctica in a Solar minimum period of December 2007 through January 2008. The p spectrum measured by BESS-Polar II shows good consistency with the secondary p calculations. Given this background of secondary p's, cosmologically primary p's have been searched for using the observed p spectrum. BESS-Polar II result shows no evidence of primary p's that originated from the evaporation of PBH.

AB - The energy spectrum of cosmic-ray antiprotons (p's) has been measured in the range 0.17 to 3.5 GeV, based on 7886 p's collected by the BESS-Polar II instrument during a long duration flight over Antarctica in a Solar minimum period of December 2007 through January 2008. The p spectrum measured by BESS-Polar II shows good consistency with the secondary p calculations. Given this background of secondary p's, cosmologically primary p's have been searched for using the observed p spectrum. BESS-Polar II result shows no evidence of primary p's that originated from the evaporation of PBH.

KW - Antiproton

KW - BESS-polar II

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M3 - Paper

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EP - 114

T2 - 32nd International Cosmic Ray Conference, ICRC 2011

Y2 - 11 August 2011 through 18 August 2011

ER -

Measurement of cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight in Antarctica

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