Volume 75, Number 1, July 2006
|Page(s)||36 - 41|
|Published online||09 June 2006|
The hyperon mean free paths in the relativistic mean field
Department of Physics, Nankai University - Tianjin 300071, PRC
Accepted: 17 May 2006
The Λ- and -hyperon mean free paths in finite nuclei are firstly calculated in the relativistic mean-field theory. The real optical potentials are derived from the RMF approach, while the imaginary parts are obtained from the assumptions: and . With these assumptions, the depth of the imaginary potential for is , and for Λ is at low incident energy. We find that the hyperon MFP decreases with the increment of the incident energies of the hyperon (from to ); and in the nuclear interior, the MFP is about 2– for Λ, and about 4– for , depending on the incident energy of the hyperon.
PACS: 21.65.+f – Nuclear matter / 21.30.Fe – Forces in hadronic systems and effective interactions
© EDP Sciences, 2006
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