Measurements of galactic cosmic-ray hydrogen and helium isotopes with the BESS-polar II instrument

Nicolas Picot-Clémente; K. Abe; H. Fuke; S. Haino; T. Hams; M. Hasegawa; A. Horikoshi; A. Itazaki; K. C. Kim; T. Kumazawa; A. Kusumoto; M. H. Lee; Y. Makida; S. Matsuda; Y. Matsukawa; K. Matsumoto; J. W. Mitchell; A. A. Moiseev; J. Nishimura; M. Nozaki; R. Orito; J. F. Ormes; K. Sakai; M. Sasaki; E. S. Seo; Y. Shikaze; R. Shinoda; R. E. Streitmatter; J. Suzuki; Y. Takasugi; K. Takeuchi; K. Tanaka; N. Thakur; T. Yamagami; A. Yamamoto; T. Yoshida; K. Yoshimura

Measurements of galactic cosmic-ray hydrogen and helium isotopes with the BESS-polar II instrument

Nicolas Picot-Clémente, K. Abe, H. Fuke, S. Haino, T. Hams, M. Hasegawa, A. Horikoshi, A. Itazaki, K. C. Kim, T. Kumazawa, A. Kusumoto, M. H. Lee, Y. Makida, S. Matsuda, Y. Matsukawa, K. Matsumoto, J. W. Mitchell, A. A. Moiseev, J. Nishimura, M. NozakiR. Orito, J. F. Ormes, K. Sakai, M. Sasaki, E. S. Seo, Y. Shikaze, R. Shinoda, R. E. Streitmatter, J. Suzuki, Y. Takasugi, K. Takeuchi, K. Tanaka, N. Thakur, T. Yamagami, A. Yamamoto, T. Yoshida, K. Yoshimura

Research output: Contribution to journal › Conference article › peer-review

Abstract

The Balloon-Borne Experiment with a Superconducting Spectrometer (BESS-Polar II) flew suc- cessfully over Antarctica for 24.5 days in December 2007 through January 2008 during a period of minimum solar activity. BESS-Polar II is concentrically arranged with various particle detectors and a solenoidal superconducting magnet that allow it to accurately identify hydrogen and helium isotopes among the incoming Galactic cosmic-ray nuclei. 2H and 3He are mostly secondary par- ticles produced after interaction of primary 1H and 4He cosmic rays during their propagation in the interstellar medium. The high mass separation of BESS-Polar II, the long-duration balloon flight and the stability of the instrument provide unprecedented high precision measurements of light isotopes. This paper will present new measurements of hydrogen and helium isotopes with energies from 0.2 GeV/nucleon up to about 1.5 GeV/nucleon, which gives essential information to better understand the history of cosmic-ray propagation in the Galaxy. They will be compared to previous results and theoretical calculations using GALPROP.

Original language	English
Article number	425
Journal	Proceedings of Science
Volume	30-July-2015
Publication status	Published - 2015
Externally published	Yes
Event	34th International Cosmic Ray Conference, ICRC 2015 - The Hague, Netherlands Duration: Jul 30 2015 → Aug 6 2015

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Picot-Clémente, N., Abe, K., Fuke, H., Haino, S., Hams, T., Hasegawa, M., Horikoshi, A., Itazaki, A., Kim, K. C., Kumazawa, T., Kusumoto, A., Lee, M. H., Makida, Y., Matsuda, S., Matsukawa, Y., Matsumoto, K., Mitchell, J. W., Moiseev, A. A., Nishimura, J., ... Yoshimura, K. (2015). Measurements of galactic cosmic-ray hydrogen and helium isotopes with the BESS-polar II instrument. Proceedings of Science, 30-July-2015, [425].

Picot-Clémente, N, Abe, K, Fuke, H, Haino, S, Hams, T, Hasegawa, M, Horikoshi, A, Itazaki, A, Kim, KC, Kumazawa, T, Kusumoto, A, Lee, MH, Makida, Y, Matsuda, S, Matsukawa, Y, Matsumoto, K, Mitchell, JW, Moiseev, AA, Nishimura, J, Nozaki, M, Orito, R, Ormes, JF, Sakai, K, Sasaki, M, Seo, ES, Shikaze, Y, Shinoda, R, Streitmatter, RE, Suzuki, J, Takasugi, Y, Takeuchi, K, Tanaka, K, Thakur, N, Yamagami, T, Yamamoto, A, Yoshida, T & Yoshimura, K 2015, 'Measurements of galactic cosmic-ray hydrogen and helium isotopes with the BESS-polar II instrument', Proceedings of Science, vol. 30-July-2015, 425.

@article{41e2d1a62d8645aa9f1cd07394ce4f47,

title = "Measurements of galactic cosmic-ray hydrogen and helium isotopes with the BESS-polar II instrument",

abstract = "The Balloon-Borne Experiment with a Superconducting Spectrometer (BESS-Polar II) flew suc- cessfully over Antarctica for 24.5 days in December 2007 through January 2008 during a period of minimum solar activity. BESS-Polar II is concentrically arranged with various particle detectors and a solenoidal superconducting magnet that allow it to accurately identify hydrogen and helium isotopes among the incoming Galactic cosmic-ray nuclei. 2H and 3He are mostly secondary par- ticles produced after interaction of primary 1H and 4He cosmic rays during their propagation in the interstellar medium. The high mass separation of BESS-Polar II, the long-duration balloon flight and the stability of the instrument provide unprecedented high precision measurements of light isotopes. This paper will present new measurements of hydrogen and helium isotopes with energies from 0.2 GeV/nucleon up to about 1.5 GeV/nucleon, which gives essential information to better understand the history of cosmic-ray propagation in the Galaxy. They will be compared to previous results and theoretical calculations using GALPROP.",

author = "Nicolas Picot-Cl{\'e}mente and K. Abe and H. Fuke and S. Haino and T. Hams and M. Hasegawa and A. Horikoshi and A. Itazaki and Kim, {K. C.} and T. Kumazawa and A. Kusumoto and Lee, {M. H.} and Y. Makida and S. Matsuda and Y. Matsukawa and K. Matsumoto and Mitchell, {J. W.} and Moiseev, {A. A.} and J. Nishimura and M. Nozaki and R. Orito and Ormes, {J. F.} and K. Sakai and M. Sasaki and Seo, {E. S.} and Y. Shikaze and R. Shinoda and Streitmatter, {R. E.} and J. Suzuki and Y. Takasugi and K. Takeuchi and K. Tanaka and N. Thakur and T. Yamagami and A. Yamamoto and T. Yoshida and K. Yoshimura",

year = "2015",

language = "English",

volume = "30-July-2015",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "34th International Cosmic Ray Conference, ICRC 2015 ; Conference date: 30-07-2015 Through 06-08-2015",

}

TY - JOUR

T1 - Measurements of galactic cosmic-ray hydrogen and helium isotopes with the BESS-polar II instrument

AU - Picot-Clémente, Nicolas

AU - Abe, K.

AU - Fuke, H.

AU - Haino, S.

AU - Hams, T.

AU - Hasegawa, M.

AU - Horikoshi, A.

AU - Itazaki, A.

AU - Kim, K. C.

AU - Kumazawa, T.

AU - Kusumoto, A.

AU - Lee, M. H.

AU - Makida, Y.

AU - Matsuda, S.

AU - Matsukawa, Y.

AU - Matsumoto, K.

AU - Mitchell, J. W.

AU - Moiseev, A. A.

AU - Nishimura, J.

AU - Nozaki, M.

AU - Orito, R.

AU - Ormes, J. F.

AU - Sakai, K.

AU - Sasaki, M.

AU - Seo, E. S.

AU - Shikaze, Y.

AU - Shinoda, R.

AU - Streitmatter, R. E.

AU - Suzuki, J.

AU - Takasugi, Y.

AU - Takeuchi, K.

AU - Tanaka, K.

AU - Thakur, N.

AU - Yamagami, T.

AU - Yamamoto, A.

AU - Yoshida, T.

AU - Yoshimura, K.

PY - 2015

Y1 - 2015

N2 - The Balloon-Borne Experiment with a Superconducting Spectrometer (BESS-Polar II) flew suc- cessfully over Antarctica for 24.5 days in December 2007 through January 2008 during a period of minimum solar activity. BESS-Polar II is concentrically arranged with various particle detectors and a solenoidal superconducting magnet that allow it to accurately identify hydrogen and helium isotopes among the incoming Galactic cosmic-ray nuclei. 2H and 3He are mostly secondary par- ticles produced after interaction of primary 1H and 4He cosmic rays during their propagation in the interstellar medium. The high mass separation of BESS-Polar II, the long-duration balloon flight and the stability of the instrument provide unprecedented high precision measurements of light isotopes. This paper will present new measurements of hydrogen and helium isotopes with energies from 0.2 GeV/nucleon up to about 1.5 GeV/nucleon, which gives essential information to better understand the history of cosmic-ray propagation in the Galaxy. They will be compared to previous results and theoretical calculations using GALPROP.

AB - The Balloon-Borne Experiment with a Superconducting Spectrometer (BESS-Polar II) flew suc- cessfully over Antarctica for 24.5 days in December 2007 through January 2008 during a period of minimum solar activity. BESS-Polar II is concentrically arranged with various particle detectors and a solenoidal superconducting magnet that allow it to accurately identify hydrogen and helium isotopes among the incoming Galactic cosmic-ray nuclei. 2H and 3He are mostly secondary par- ticles produced after interaction of primary 1H and 4He cosmic rays during their propagation in the interstellar medium. The high mass separation of BESS-Polar II, the long-duration balloon flight and the stability of the instrument provide unprecedented high precision measurements of light isotopes. This paper will present new measurements of hydrogen and helium isotopes with energies from 0.2 GeV/nucleon up to about 1.5 GeV/nucleon, which gives essential information to better understand the history of cosmic-ray propagation in the Galaxy. They will be compared to previous results and theoretical calculations using GALPROP.

UR - http://www.scopus.com/inward/record.url?scp=84988696656&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84988696656&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:84988696656

SN - 1824-8039

VL - 30-July-2015

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 425

T2 - 34th International Cosmic Ray Conference, ICRC 2015

Y2 - 30 July 2015 through 6 August 2015

ER -

Measurements of galactic cosmic-ray hydrogen and helium isotopes with the BESS-polar II instrument

Abstract

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