Binding Energy of a Lambda Particle in Nuclear Matter
Jun, 1970
12 pages
Published in:
- Phys.Rev.C 1 (1970) 1883-1895
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Abstract: (APS)
The binding energy of a Λ particle in nuclear matter, BΛ(∞), is calculated self-consistently with the help of the Brueckner theory. In the K-matrix equations for the Λ−N interaction, pure kinetic energies in the intermediate states are used. The K-matrix equations are solved numerically. The rearrangement energy is taken into account. The values of BΛ(∞) calculated with several central Λ−N potentials vΛN- though smaller than the values obtained by other authors - are, in general, larger than the empirical value of BΛ(∞). An agreement with this value is obtained only if vΛN, adjusted to the binding energy of He5Λ, has a sufficiently large hard core and is sufficiently suppressed in odd states. Possible ways of reducing the calculated value of BΛ(∞) are discussed. A critical discussion of the independent-pair approximation applied by other authors in calculating BΛ(∞) is presented.References(54)
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