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AbstractAbstract
[en] The inclusion of Lambda N-ΣN coupling in the A = 4 Lambda-hypernuclei is shown to be required in order to obtain proper ordering of the 0+ ground state and 1+ spin-flip excited state, when exact four-body equations are solved. It is argued that suppression of the off-diagonal Lambda N-ΣN coupling in the A = 5 system, similar to that in the A = 4 isodoublet, should account for the anomalously small binding of 5He. An alternative quark model explanation is also considered
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1984; 7 p; Conference on the intersections between particle and nuclear physics; Steamboat Springs, CO (USA); 23-30 May 1984; CONF-8405193--12; Available from NTIS, PC A02/MF A01 as DE84013899
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Conference
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