Measurement of cosmic-ray proton and antiproton spectra at mountain altitude

T. Sanuki; M. Fujikawa; H. Matsunaga; K. Abe; K. Anraku; H. Fuke; S. Haino; M. Imori; K. Izumi; T. Maeno; Y. Makida; N. Matsui; H. Matsumoto; J. Nishimura; M. Nozaki; S. Orito; M. Sasaki; Y. Shikaze; J. Suzuki; K. Tanaka; A. Yamamoto; Y. Yamamoto; K. Yamato; T. Yoshida; K. Yoshimura

doi:10.1016/j.physletb.2003.10.021

Measurement of cosmic-ray proton and antiproton spectra at mountain altitude

T. Sanuki, M. Fujikawa, H. Matsunaga, K. Abe, K. Anraku, H. Fuke, S. Haino, M. Imori, K. Izumi, T. Maeno, Y. Makida, N. Matsui, H. Matsumoto, J. Nishimura, M. Nozaki, S. Orito, M. Sasaki, Y. Shikaze, J. Suzuki, K. TanakaA. Yamamoto, Y. Yamamoto, K. Yamato, T. Yoshida, K. Yoshimura

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19 Citations (Scopus)

Abstract

Energy spectra of atmospheric secondary cosmic-ray protons and antiprotons were measured at mountain altitude, 2770 m above sea level. We observed more than 10⁵ protons and 10² antiprotons. Our proton spectrum is generally consistent with other previous measurements. The observed antiproton spectrum suggests that the energy loss due to non-annihilation processes is less significant than that assumed in previous model calculations.

Original language	English
Pages (from-to)	10-17
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	577
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2003.10.021
Publication status	Published - Dec 18 2003
Externally published	Yes

Keywords

Atmospheric cosmic ray
Cosmic-ray antiproton
Cosmic-ray proton
Superconducting spectrometer

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2003.10.021

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Sanuki, T., Fujikawa, M., Matsunaga, H., Abe, K., Anraku, K., Fuke, H., Haino, S., Imori, M., Izumi, K., Maeno, T., Makida, Y., Matsui, N., Matsumoto, H., Nishimura, J., Nozaki, M., Orito, S., Sasaki, M., Shikaze, Y., Suzuki, J., ... Yoshimura, K. (2003). Measurement of cosmic-ray proton and antiproton spectra at mountain altitude. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 577(1-2), 10-17. https://doi.org/10.1016/j.physletb.2003.10.021

Sanuki, T, Fujikawa, M, Matsunaga, H, Abe, K, Anraku, K, Fuke, H, Haino, S, Imori, M, Izumi, K, Maeno, T, Makida, Y, Matsui, N, Matsumoto, H, Nishimura, J, Nozaki, M, Orito, S, Sasaki, M, Shikaze, Y, Suzuki, J, Tanaka, K, Yamamoto, A, Yamamoto, Y, Yamato, K, Yoshida, T & Yoshimura, K 2003, 'Measurement of cosmic-ray proton and antiproton spectra at mountain altitude', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 577, no. 1-2, pp. 10-17. https://doi.org/10.1016/j.physletb.2003.10.021

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title = "Measurement of cosmic-ray proton and antiproton spectra at mountain altitude",

abstract = "Energy spectra of atmospheric secondary cosmic-ray protons and antiprotons were measured at mountain altitude, 2770 m above sea level. We observed more than 105 protons and 102 antiprotons. Our proton spectrum is generally consistent with other previous measurements. The observed antiproton spectrum suggests that the energy loss due to non-annihilation processes is less significant than that assumed in previous model calculations.",

keywords = "Atmospheric cosmic ray, Cosmic-ray antiproton, Cosmic-ray proton, Superconducting spectrometer",

author = "T. Sanuki and M. Fujikawa and H. Matsunaga and K. Abe and K. Anraku and H. Fuke and S. Haino and M. Imori and K. Izumi and T. Maeno and Y. Makida and N. Matsui and H. Matsumoto and J. Nishimura and M. Nozaki and S. Orito and M. Sasaki and Y. Shikaze and J. Suzuki and K. Tanaka and A. Yamamoto and Y. Yamamoto and K. Yamato and T. Yoshida and K. Yoshimura",

note = "Funding Information: This study was supported by a Joint Research Program of ICRR, the University of Tokyo. We would like to thank all staffs at the Norikura Observatory for their cooperation and helpful suggestions. We are indebted to Professor M. Bu{\'e}nerd and Professor L. Derome of Laboratoire de Physique Subatomique et de Cosmologie, IN2P3/CNRS and Dr. C.Y. Huang of Max-Planck-Institut f{\"u}r Kernphysik for helpful discussions on this issue. We would like to thank KEK and ICEPP, the University of Tokyo for their continuous support and encouragement during this study. This experiment was supported by Grants-in-Aid, KAKENHI(11694104, 11440085, 09304033), from Ministry of Education, Culture, Sports, Science and Technology, MEXT, and Japan Society for the Promotion of Science, JSPS, in Japan. ",

year = "2003",

month = dec,

day = "18",

doi = "10.1016/j.physletb.2003.10.021",

language = "English",

volume = "577",

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journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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TY - JOUR

T1 - Measurement of cosmic-ray proton and antiproton spectra at mountain altitude

AU - Sanuki, T.

AU - Fujikawa, M.

AU - Matsunaga, H.

AU - Abe, K.

AU - Anraku, K.

AU - Fuke, H.

AU - Haino, S.

AU - Imori, M.

AU - Izumi, K.

AU - Maeno, T.

AU - Makida, Y.

AU - Matsui, N.

AU - Matsumoto, H.

AU - Nishimura, J.

AU - Nozaki, M.

AU - Orito, S.

AU - Sasaki, M.

AU - Shikaze, Y.

AU - Suzuki, J.

AU - Tanaka, K.

AU - Yamamoto, A.

AU - Yamamoto, Y.

AU - Yamato, K.

AU - Yoshida, T.

AU - Yoshimura, K.

N1 - Funding Information: This study was supported by a Joint Research Program of ICRR, the University of Tokyo. We would like to thank all staffs at the Norikura Observatory for their cooperation and helpful suggestions. We are indebted to Professor M. Buénerd and Professor L. Derome of Laboratoire de Physique Subatomique et de Cosmologie, IN2P3/CNRS and Dr. C.Y. Huang of Max-Planck-Institut für Kernphysik for helpful discussions on this issue. We would like to thank KEK and ICEPP, the University of Tokyo for their continuous support and encouragement during this study. This experiment was supported by Grants-in-Aid, KAKENHI(11694104, 11440085, 09304033), from Ministry of Education, Culture, Sports, Science and Technology, MEXT, and Japan Society for the Promotion of Science, JSPS, in Japan.

PY - 2003/12/18

Y1 - 2003/12/18

N2 - Energy spectra of atmospheric secondary cosmic-ray protons and antiprotons were measured at mountain altitude, 2770 m above sea level. We observed more than 105 protons and 102 antiprotons. Our proton spectrum is generally consistent with other previous measurements. The observed antiproton spectrum suggests that the energy loss due to non-annihilation processes is less significant than that assumed in previous model calculations.

AB - Energy spectra of atmospheric secondary cosmic-ray protons and antiprotons were measured at mountain altitude, 2770 m above sea level. We observed more than 105 protons and 102 antiprotons. Our proton spectrum is generally consistent with other previous measurements. The observed antiproton spectrum suggests that the energy loss due to non-annihilation processes is less significant than that assumed in previous model calculations.

KW - Atmospheric cosmic ray

KW - Cosmic-ray antiproton

KW - Cosmic-ray proton

KW - Superconducting spectrometer

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SN - 0370-2693

VL - 577

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EP - 17

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Measurement of cosmic-ray proton and antiproton spectra at mountain altitude

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