| Issue |
Europhys. Lett.
Volume 75, Number 1, July 2006
|
|
|---|---|---|
| Page(s) | 36 - 41 | |
| Section | Nuclear physics | |
| DOI | https://doi.org/10.1209/epl/i2006-10083-y | |
| Published online | 09 June 2006 | |
The hyperon mean free paths in the relativistic mean field
Department of Physics, Nankai University - Tianjin 300071, PRC
Corresponding authors: dl030115@mail.nankai.edu.cn zhongxianhui@mail.nankai.edu.cn ningpz@nankai.edu.cn
Received:
17
February
2006
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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