Multinucleon Capture Of K Mesons And Some Associated Problems Of The K Capture Process

Author : George Thomas Condo
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.1/5 (132 download)

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Download or read book Multinucleon Capture of K− Mesons and Some Associated Problems of the K− Capture Process written by George Thomas Condo and published by . This book was released on 1962 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The multinucleon absorption of K( - ) mesons is studied by searching for fast! hyperons emitted from K( - ) capture stars in normal and in water-soaked Ilford G5 nuclear emulsion. These fast (> 60 mev) hyperons are the only certain indication that a K( - ) meson was absorbed nonmesonically. On the basis of these data and their reasonable similarity with that of Evans et al., it is concluded that the capture of K( - ) mesons by the light emulsion nuclei (C, N, O) is 2.2! .3 times more likely to yield a fast hyperon that is K( - ) capture by Ag and Br. Combining this with the hyperon absorption probabilities deduced from a study of Auger electron emission, the multinucleon K( - ) absorption probability is approximately the same for light and heavy capturing nuclei in nuclear emulsion (excluding hydrogen). Of 56 fast hyperon events, 17 were consistent with K( - ) capture by a light nucleus. By combining these events with those reported by Evans et al., we find when a K( - ) meson is absorbed through a multinucleon channel by C12 and O16, that the basic interaction in 92% of the events is consistent with the destruction of a single particle subunit. The Auger spectrum resulting from capture and subsequent cascade of K( - ) mesons shows evidence for the line structure predicted by conventional theory. (Author).