| Autor: |
Michaelis, E. G., Powell, B. W. |
| Zdroj: |
Philosophical Magazine; May 1956, Vol. 1 Issue: 5 p441-449, 9p |
| Abstrakt: |
Earlier work by the Manchester Jungfraujoch group on slow, negative, heavy cosmic-ray particles observed in a magnet cloud chamber has been repeated. An upper limit to the frequency of slow K--mesons which do not decay in the cloud chamber is now found to be ∼1% of the frequency of slow protons. From other published data the probable ratio of the two frequencies is estimated as about 1 : 2000. The identity of the observed particles is discussed. The previous results giving a high frequency and a long mean lifetime for K--mesons are not confirmed.One event showing the possible simultaneous production of two slow K--mesons and one example of an upward-moving S+-particle are described. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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