K/sup -/-meson absorptions at rest in carbon nuclei leading to final states containing a Lambda -hyperon

A study has been made of K/sup -/-meson interactions at rest in the CERN 1.1 m/sup 3/ heavy-liquid bubble chamber filled with a mixture of hydrocarbons. The emission frequency of Lambda /sup 0/-hyperons following K/sup -/-meson absorptions in carbon nuclei is determined to be 0.68+or-0.02. A detaile...

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Detalles Bibliográficos
Autores principales: Van der Velde-Wilquet, C, Comber, C, Davis, D H, Sacton, J, Tovee, D N, Wickens, J H
Lenguaje:eng
Publicado: 1977
Materias:
Nuclear Physics
Acceso en línea:http://cds.cern.ch/record/878650
Descripción
Sumario:A study has been made of K/sup -/-meson interactions at rest in the CERN 1.1 m/sup 3/ heavy-liquid bubble chamber filled with a mixture of hydrocarbons. The emission frequency of Lambda /sup 0/-hyperons following K/sup -/-meson absorptions in carbon nuclei is determined to be 0.68+or-0.02. A detailed study of the ( Lambda /sup 0/ pi /sup -/) final state has allowed an estimate to be made of the internal- conversion probability C( Sigma /sup +/) of Sigma /sup +/-hyperons produced in association with pi /sup -/-mesons. The result is C( Sigma /sup +/)=0.62+or-0.02. The contribution of the direct channel to the ( Lambda /sup 0/ pi /sup -/) final state is found to be 0.23+or-0.01. The results are compared with those obtained for other absorbing media. (27 refs).

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