Coulomb displacement energies and decay widths of isobaric analog states from Sm(3He, t) at θ = 0°

作者: J. Jänecke , F.D. Becchetti , W.S. Ggray , R.S. Tickle , E. Sugarbaker

DOI: 10.1016/0375-9474(83)90498-0

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摘要: The ,~~.*~~,l~s,*~~,*so,,s*.,s~sm(~~e, t)'44.'47,'48.'49.150.1SZ.f54 Eu reactions leading to ground- state isobarican~ogstates (IAS) have been studied at B = O-and E(?He) 45.9 MeV. Coulomb displacement energies decrease more rapidly than A-"3. Approximately 110 keV of the total about 470 from A 144 (spherical) 154 (deformed) can be ascribed deformation. No discontinuity is apparent transition spherical deformed shapes N 88 - 90. This attributed two effects: (i) rms radii increase with static deformations and dynamical vibrations; (ii) depend on charge neutron excess. data suggest greater proton for 148 1.50 but smaller 152 154. IAS widths 30 -90 mixing (To- 3) component a proposed isovector giant monopole resonance.

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