Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1994-11-23
Prog.Theor.Phys.Suppl.117:339-350,1994
Physics
Nuclear Physics
Nuclear Theory
17 pages LATEX, 1 figure uuencoded postscript
Scientific paper
10.1143/PTPS.117.339
The $\Lambda N - \Sigma N$ coupling in $\Lambda$--hypernuclei and $\Lambda \Lambda - \Xi N$ coupling in $\Lambda \Lambda$--hypernuclei produce novel physics not observed in the conventional, nonstrange sector. Effects of $\Lambda \leftrightarrow \Sigma$ conversion in $^3_{\Lambda}$H are reviewed. The role of $\Lambda N - \Sigma N$ coupling suppression in the $A=4,5$ $\Lambda$--hypernuclei due to Pauli blocking is highlighted, and the implications for the structure of $^{10}_{\;\, \Lambda}$B are explored. Suppression of $\Lambda \Lambda - \Xi N$ conversion in $^{\;\;\, 6}_{\Lambda \Lambda}$He is hypothesized as the reason that the $< V_{\Lambda \Lambda} >$ matrix element is small. Measurement of $^{\;\;\, 4}_{\Lambda \Lambda}$H is proposed to investigate the full $\Lambda \Lambda - \Xi N$ interaction. The implication for $\Lambda \Lambda$ analog states is discussed.
Afnan Iraj R.
Carlson James A.
Gibson Benjamin F.
Lehman D. R.
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