The dependence of the cosmic-ray shower age on shower size for vertical sizes in the range 6·105Tóm tắt
Measurements have been made of the electron lateral-distribution age parameter for cosmic-ray showers with sea-level sizes from ∼105 to 6·106 particles. It is found that, in the size range from ∼6·105 particles to ∼6·106 particles, the shower age decreases rapidly with size corresponding to a rapid change in the equivalent development depth with shower size. Measurements of the age distribution of the showers with sizes below ∼5·105 show a selection bias towards young showers.
Tài liệu tham khảo
P. C. Crouch, P. R. Gerhardy, J. R. Patterson, R. W. Clay andA. G. Gregory:Nucl. Instrum. Methods,179, 467 (1981).
K. Greisen:Annu. Rev. Nucl. Sci.,10, 63 (1960).
S. Hayakawa:Cosmic Ray Physics (New York, N. Y., 1969), p. 144.
S. N. Vernov, G. B. Khristiansen, O. V. Vedeneev, N. N. Kalmykov, G. V. Kulikov, K. V. Mandritskaya andV. I. Solov’eva:Acta Phys. Acad. Sci. Hung.,29, Suppl. 3, 429 (1969).
B. S. Acharaya, S. Naranan, M. V. S. Rao, K. Sivaprasad, B. V. Sreekantan andS. Rao:Proceedings of the XVI International Cosmic Ray Conference, Vol.13 (Kyoto, 1979), p. 272.
E. Boehm andE. Steinmann:Proceedings of the XVI International Cosmic Ray Conference, Vol.8 (Kyoto, 1979), p. 294.
L. G. Dedenko, N. V. Kabanova andJ. N. Stamenov:Proceedings of the XVI International Cosmic Ray Conference, Vol.8 (Kyoto, 1979), p. 320.
A. C. Smith andM. G. Thompson:Nucl. Instrum. Methods.,145, 289 (1977).
F. James andM. Roos:Comput. Phys. Commun.,10, 343 (1975).
R. W. Clay andP. R. Gerhardy:J. Phys. G,7, L33 (1981).
K. Asakimori, N. Jogo, T. Kameda, T. Maeda, K. Mizushima, Y. Toyoda andM. Yoshida:Proceedings of the XVI International Cosmic Ray Conference, Vol.8 (Kyoto, 1979), p. 247.
T. Hara, Y. Hatano, N. Haseke, N. Hayashida, N. Jogo, K. Kamata, S. Kawaguchi, T. Kifure, M. Nagano andG. Tanahashi:Proceedings of the XVI International Cosmic Ray Conference, Vol.13 (Kyoto, 1979), p. 148.
K. Kamata, K. Murakami andS. Kawasaki:Proceedings of the International Cosmic Ray Conference, Vol.4 (Jaipur, 1963), p. 214.
S. Miyake, N. Ito, S. Kawakami, Y. Hayashi andN. Awaji:Proceedings of the XVI International Cosmic Ray Conference, Vol.13 (Kyoto, 1979), p. 171.
J. Wdowczyk:Cosmic Rays at Ground Level, Chapt. 8, edited byA. W. Wolfendale (London, 1973).
G. J. Thornton andR. W. Clay:Phys. Rev. Lett.,43, 1622 (1979).
S. Karakula: Ph. D. Thesis, University of Lodz (1968). Quoted inCosmic Rays at Ground Level, edited byA. W. Wolfendale (London and Bristol, 1973), p. 141.
Tóm tắt
Measurements have been made of the electron lateral-distribution age parameter for cosmic-ray showers with sea-level sizes from ∼105 to 6·106 particles. It is found that, in the size range from ∼6·105 particles to ∼6·106 particles, the shower age decreases rapidly with size corresponding to a rapid change in the equivalent development depth with shower size. Measurements of the age distribution of the showers with sizes below ∼5·105 show a selection bias towards young showers.
Tài liệu tham khảo
P. C. Crouch, P. R. Gerhardy, J. R. Patterson, R. W. Clay andA. G. Gregory:Nucl. Instrum. Methods,179, 467 (1981).
K. Greisen:Annu. Rev. Nucl. Sci.,10, 63 (1960).
S. Hayakawa:Cosmic Ray Physics (New York, N. Y., 1969), p. 144.
S. N. Vernov, G. B. Khristiansen, O. V. Vedeneev, N. N. Kalmykov, G. V. Kulikov, K. V. Mandritskaya andV. I. Solov’eva:Acta Phys. Acad. Sci. Hung.,29, Suppl. 3, 429 (1969).
B. S. Acharaya, S. Naranan, M. V. S. Rao, K. Sivaprasad, B. V. Sreekantan andS. Rao:Proceedings of the XVI International Cosmic Ray Conference, Vol.13 (Kyoto, 1979), p. 272.
E. Boehm andE. Steinmann:Proceedings of the XVI International Cosmic Ray Conference, Vol.8 (Kyoto, 1979), p. 294.
L. G. Dedenko, N. V. Kabanova andJ. N. Stamenov:Proceedings of the XVI International Cosmic Ray Conference, Vol.8 (Kyoto, 1979), p. 320.
A. C. Smith andM. G. Thompson:Nucl. Instrum. Methods.,145, 289 (1977).
F. James andM. Roos:Comput. Phys. Commun.,10, 343 (1975).
R. W. Clay andP. R. Gerhardy:J. Phys. G,7, L33 (1981).
K. Asakimori, N. Jogo, T. Kameda, T. Maeda, K. Mizushima, Y. Toyoda andM. Yoshida:Proceedings of the XVI International Cosmic Ray Conference, Vol.8 (Kyoto, 1979), p. 247.
T. Hara, Y. Hatano, N. Haseke, N. Hayashida, N. Jogo, K. Kamata, S. Kawaguchi, T. Kifure, M. Nagano andG. Tanahashi:Proceedings of the XVI International Cosmic Ray Conference, Vol.13 (Kyoto, 1979), p. 148.
K. Kamata, K. Murakami andS. Kawasaki:Proceedings of the International Cosmic Ray Conference, Vol.4 (Jaipur, 1963), p. 214.
S. Miyake, N. Ito, S. Kawakami, Y. Hayashi andN. Awaji:Proceedings of the XVI International Cosmic Ray Conference, Vol.13 (Kyoto, 1979), p. 171.
J. Wdowczyk:Cosmic Rays at Ground Level, Chapt. 8, edited byA. W. Wolfendale (London, 1973).
G. J. Thornton andR. W. Clay:Phys. Rev. Lett.,43, 1622 (1979).
S. Karakula: Ph. D. Thesis, University of Lodz (1968). Quoted inCosmic Rays at Ground Level, edited byA. W. Wolfendale (London and Bristol, 1973), p. 141.