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112 Sn

112 Sn. From EGMR and EISGDR to K ∞. However, the available GMR data can lead to a wide range of values for K ∞ (100--500 MeV!). So, "microscopic approach": Select "suitable" effective interactions. Calculate the GMR strength distributions in an RPA approach

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112 Sn

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  1. 112Sn

  2. From EGMR and EISGDR to K∞ However, the available GMR data can lead to a wide range of values for K∞ (100--500 MeV!) • So, "microscopic approach": • Select "suitable" effective interactions. • Calculate the GMR strength distributions in an RPA approach • Compare with the experimental EGMR and EISGDR K∞

  3. This number is consistent with both GMR and ISGDR Data and with non-relativistic and relativistic calculations

  4. Excitation energy spectra at 0 deg

  5. Why are tins so “Fluffy”?

  6. Kt= -500 (50)

  7. Data from H. Sagawa et al., Phys. Rev. C 76, 034327 (2007)

  8. G. Colo’s talk on Saturday

  9. G. Colo’s talk on Saturday

  10. Towards very neutron-rich nuclei • Kt • Kcore and Kskin “soft GMR” akin to pigmy GDR’s. • Need inverse reactions 2H, 4He, or 6Li targets beams of 35-100 MeV/A • First experiment performed at • GANIL • 56Ni + 2H, with active target MAYA

  11. Ionization chamber Si wall Drift chamber Moving flap CsI wall Au foil Diamond MAYA @ GANIL MAYA

  12. 58Ni (d, d’) d break-up # counts/MeV MAYA @ GANIL C. Monrozeau et al., Phys. Rev. Lett. 100, 042501 (2008)

  13. Analysis with Gaussian fits

  14. Multipole Decomposition Analysis

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