Journal
PHYSICAL REVIEW C
Volume 62, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.62.024319
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Using the self-consistent Hartree-Fock plus Tamm-Dancoff approximation with Skyrme interactions, the response-of some beta stable closed-shell nuclei to charge-exchange (t(+/-)) spin monopole fields is estimated in the coordinate space. Both the isoscalar and isovector spin-correlation are included simultaneously. The excitation energy of t(+) giant resonance decreases considerably as the neutron excess land consequently the nuclear mass number) increases, while that of t(-) giant resonance remains nearly constant. We have tried to separate out the Gamow-Teller strength from the present charge-exchange spin monopole strength, both of which have the same quantum numbers, J(pi)=1(+).
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