Relative abundance of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>3</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>4</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> in cosmic rays near 10 GV

Y. Hatano; Y. Fukada; T. Saito; H. Oda; T. Yanagita

doi:10.1103/PhysRevD.52.6219

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Relative abundance of ${}^{3}{He}$ and ${}^{4}{He}$ in cosmic rays near 10 GV

Y. Hatano, Y. Fukada, and T. Saito

H. Oda

T. Yanagita

Institute for Cosmic Ray Research, University of Tokyo, Tanashi, Tokyo, Japan

Department of Physics, Kobe University, Kobe, Japan

Gunma College of Technology, Maebashi, Japan

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Phys. Rev. D 52, 6219 – Published 1 December, 1995

DOI: https://doi.org/10.1103/PhysRevD.52.6219

Abstract

The abundance ratio of ${}^{3}{He}$ and ${}^{4}{He}$ has been measured at six different atmospheric depths, from 8 g/ ${cm}^{2}$ to 23 g/ ${cm}^{2}$ , employing the geomagnetic method. The ratio at the top of the atmosphere was obtained by fitting the observed six ratios. The observed ratio is consistent with the standard propagation model of cosmic rays.

References (11)

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R. L. Golden et al., Phys. Rev. Lett. 43, 1196 (1979); E. A. Bogomlov et al., in Proceedings of the 16th International Cosmic Ray Conference, Kyoto, Japan, 1979 (Institute for Cosmic Ray Research, Tokyo, 1979), Vol. 1, p. 330; A. Buffington et al., Astrophys. J. 248, 1179 (1981).
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R. A. Mewaldt, in Cosmic Abundances of Matter, edited by C. Jake Waddington, AIP Conf. Proc. No. 183 (AIP, New York, 1989), p. 124.
D. J. Ficenec et al., in Cosmic Ray Conference, Proceedings of the 23rd International Conference, Calgary, Canada, 1993, edited by R. B. Hicks (World Scientific, Singapore, 1994), Vol. 1, p. 515.
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L. H. Smith et al., Astrophys. J. 180, 987 (1973).
R. L. Golden et al., in Proceedings of the 19th International Cosmic Ray Conference, La Jolla, California, 1985, edited by F. C. Jones , NASA Conf. Publ. 2376 (Goddard Space Flight Center, Greenbelt, MD, 1985), Vol. 2, p. 1.

[c1] Steven P. Jordan and Peter Meyer, Phys. Rev. Lett. 53, 505 (1984); Steven P. Jordan, Astrophys. J. 291, 207 (1985); R. Dwyer, S Jordan and P. Meyer, Nucl. Instrum. Methods 224, 247 (1984).

[c2] R. L. Golden et al., Phys. Rev. Lett. 43, 1196 (1979); E. A. Bogomlov et al., in Proceedings of the 16th International Cosmic Ray Conference, Kyoto, Japan, 1979 (Institute for Cosmic Ray Research, Tokyo, 1979), Vol. 1, p. 330; A. Buffington et al., Astrophys. J. 248, 1179 (1981).

[c3] A. Buffington, C. D. Orth and G. F. Smoot, Astrophys. J. 199, 699 (1975); D. Muller and J. Tang, ibid. 312, 183 (1987).

[c4] B. Peters, Nucl. Instrum. Methods 121, 205 (1974).

[c5] W. R. Webber, R. L. Golden and R. A. Mewaldt, Astrophys. J. 312, 178 (1987).

[c6] R. A. Mewaldt, Astrophys. J. 311, 979 (1986).

[c7] R. A. Mewaldt, in Cosmic Abundances of Matter, edited by C. Jake Waddington, AIP Conf. Proc. No. 183 (AIP, New York, 1989), p. 124.

[c8] D. J. Ficenec et al., in Cosmic Ray Conference, Proceedings of the 23rd International Conference, Calgary, Canada, 1993, edited by R. B. Hicks (World Scientific, Singapore, 1994), Vol. 1, p. 515.

[c9] W. R. Webber et al., Astrophys. J. 380, 230 (1991).

[c10] L. H. Smith et al., Astrophys. J. 180, 987 (1973).

[c11] R. L. Golden et al., in Proceedings of the 19th International Cosmic Ray Conference, La Jolla, California, 1985, edited by F. C. Jones , NASA Conf. Publ. 2376 (Goddard Space Flight Center, Greenbelt, MD, 1985), Vol. 2, p. 1.

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Relative abundance of ${}^{3}{He}$ and ${}^{4}{He}$ in cosmic rays near 10 GV

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Relative abundance of He3 and He4 in cosmic rays near 10 GV

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References (11)

Relative abundance of ${}^{3}{He}$ and ${}^{4}{He}$ in cosmic rays near 10 GV