| タイトル | Energy dependence of the P(bar)/P ratio in cosmic rays |
| 著者（英） | Horan, S.; Mauger, B. G.; Nunn, S.; Golden, R. L. |
| 著者所属（英） | New Mexico State Univ. |
| 発行日 | 1984-01-01 |
| 言語 | eng |
| 内容記述 | The antiproton/proton /P(bar)/P/ratio is presented for seven kinetic energy intervals from 4.4 - 13.4 GeV. The P(bar) were observed in 1979 by the New Mexico State University balloon-borne magnet spectrometer. The observations are compared to various models including secondary production in a leaky box. A decline in the P(bar)/P ratio at low energies is expected if the P(bar) are produced as secondaries. The data are consistent with such a decline but the P(bar)/P ratio is much higher than expected. The confidence level is less than 0.0001 for a model based on a leaky box with a mean-matter-traversed lambda of 7 gm/sq cm. The best leaky-box-model fit obtained by varying lambda gives a confidence level of 0.12 for lambda l= 21 + or - 3 gm/sq c. Results are also presented for fits based on the closed-galaxy and other models. |
| NASA分類 | SPACE RADIATION |
| レポートNO | 85A36078 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/391217 |
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