About   Contents   Introduction   Synopsis   Search   Subject Index   Summaries   Texts

PERKINS 1947

Perkins, D.H.;
Nuclear Disintegration by Meson Capture
Nature 159 (1947) 126;

Reprinted in
R. N. Cahn and G. Goldhaber, The Experimental Foundations of Particle Physics, Cambridge Univ. Press (1991) 39.

Abstracts
Recently, multiple nuclear disintegration "stars'', produced by cosmic radiation, have been investigated by the photographic emulsion technique. Plates coated with 50 μ Ilford B.1 emulsions, were exposed in aircraft for several hours at 30,000 ft. One of these disintegrations was of particular interest, for whereas all stars previously observed had been initiated by radiation not producing ionizing tracks in the emulsion, the one in question appears to be due to nuclear capture of a charged particle, presumably a slow meson. (Extracted from the introductory part of the paper.).

Accelerator COSM Detectors EMUL

Related references
See also
C. F. Powell, G. P. S. Occhialini, D. L. Liversey and L. V. Chilton, J. Sci. Instr. 23 (1946) 102;
Williams, Proc. Roy. Soc. A169 (1938) 531;

Reactions

π– nucleus nucleus 3H 2p

cs

Particles studied

π–

ex, mass

Record comments
First indication of the existence of the π^–.

New Comments List of Comments About   Contents   Introduction   Synopsis   Search   Subject Index   Summaries   Texts