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FRIB Workshop/Nov.2008. 112 Sn FRIB Workshop/Nov.2008.

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Presentation on theme: "FRIB Workshop/Nov.2008. 112 Sn FRIB Workshop/Nov.2008."— Presentation transcript:

1 FRIB Workshop/Nov.2008

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7 112 Sn

8 FRIB Workshop/Nov.2008

9 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∞K∞

10 FRIB Workshop/Nov.2008 This number is consistent with both GMR and ISGDR Data and with non-relativistic and relativistic calculations

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12 Excitation energy spectra at 0 deg

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16 Why are tins so “Fluffy”?

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20 K  = -500 (50)

21 FRIB Workshop/Nov.2008 Data from H. Sagawa et al., Phys. Rev. C 76, 034327 (2007)

22 FRIB Workshop/Nov.2008 G. Colo’s talk on Saturday

23 FRIB Workshop/Nov.2008 G. Colo’s talk on Saturday

24 FRIB Workshop/Nov.2008 Towards very neutron-rich nuclei  K   K core and K skin “soft GMR” akin to pigmy GDR’s.  Need inverse reactions 2 H, 4 He, or 6 Li targets beams of 35-100 MeV/A  First experiment performed at GANIL 56 Ni + 2 H, with active target MAYA

25 FRIB Workshop/Nov.2008 MAYA Drift chamber Moving flap Si wall CsI wall Diamond Ionization chamber Au foil MAYA @ GANIL

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

27 FRIB Workshop/Nov.2008 Analysis with Gaussian fits

28 FRIB Workshop/Nov.2008 Multipole Decomposition Analysis

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