SU„3... symmetry breaking in lower fp-shell nuclei
نویسندگان
چکیده
Results of shell-model calculations for lower f p-shell nuclei show that SU~3! symmetry breaking in this region is driven by the single-particle spin-orbit splitting. However, even though states of the yrast band exhibit SU~3! symmetry breaking, the results also show that the yrast band B(E2) values are insensitive to this fragmentation of the SU~3! symmetry; specifically, the quadrupole collectivity as measured by B(E2) transition strengths between low lying members of the yrast band remain high even though SU~3! appears to be broken. Results for Ti and Cr using the Kuo-Brown-3 two-body interaction are given to illustrate these observations.
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