1 / 30

Insights into Giant Monopole Resonance and Inverse Reactions in Neutron-Rich Nuclei

This work explores the relationship between the Giant Monopole Resonance (GMR) and the incompressibility of nuclear matter, K∞, by analyzing various effective interactions and GMR strength distributions using an RPA framework. We compare our calculations with experimental data on the EGMR and EISGDR to confirm consistency across non-relativistic and relativistic models. Furthermore, we discuss the significance of "soft" GMR and present first experimental results using deuteron and helium targets at GANIL, employing advanced detection methods to enhance understanding of neutron-rich nuclei.

nirav
Télécharger la présentation

Insights into Giant Monopole Resonance and Inverse Reactions in Neutron-Rich Nuclei

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related