ABSORPTIONS OF NEGATIVE K-MESONS AT REST IN NUCLEAR EMULSION. IV. THE PION PRODUCING REACTIONS
Journal Article
·
· Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B
OSTI ID:4239811
Absorptions of negative K mesons at rest in nuclear emulsions were studied in great detail, using a large emulsion block. Most of the secondary particles came to rest in the stack and were identified. Comparing the results obtained in the present work with those previously obtained in a study of the interactions of fast K/sup -/ mesons, and with the results obtained by Alvarez et al., the following conclusions may be drawn: (1) In this experiment the single- nucleon reactions show a high rate of direct 1 HNO/sub 3/. -production. This result is a straightforward consequence of the observed sign fractions and absorption probabilities, if charge independence holds. It can be explained by the influence of the Fermi momentum. (2) The multi-nucleon K/sup -/ captures form a large fraction of the total K/sup -/ captures at rest. It is estimated that as much as 35 to 50% of the captures occur via the multi-nucleon channel. (3) Probably the single-nucleon K/sup -/ captures at rest are mainly peripheral; thus they lead, because of geometrical reasons, to smaller pion and Mo content, co hyperon absorption probabilities. (auth)
- Research Organization:
- Univ. of Bern.
- NSA Number:
- NSA-13-012891
- OSTI ID:
- 4239811
- Journal Information:
- Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10) 11; ISSN NUCIA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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