1 / 24

Nuclear Reactions as a Tool for Structure Studies of Exotic Nuclei

Nuclear Reactions as a Tool for Structure Studies of Exotic Nuclei. H. Lenske Institut für Theoretische Physik U. Giessen. Low Energy Transfer Reactions Charge Exchange Reactions Fano-Resonances in Exotic Nuclei (Antiprotons as Probes for Neutron Skins) Summary and Outlook.

teal
Download Presentation

Nuclear Reactions as a Tool for Structure Studies of Exotic 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. Nuclear Reactions as a Tool for Structure Studies of Exotic Nuclei H. Lenske Institut für Theoretische Physik U. Giessen • Low Energy Transfer Reactions • Charge Exchange Reactions • Fano-Resonances in Exotic Nuclei • (Antiprotons as Probes for Neutron Skins) • Summary and Outlook

  2. Extraction and Extrapolation of Spectral Information, Location of Driplines, b-Decay, Reaction Rates … : Reaction Theory!

  3. Transfer Reactions with Secondary Beams: Pickup/Stripping in Inverse Kinematics • Direct Reaction • Suppression of Compound Reactions • Particle Detection plus gray Detection • Spectral Distributions, Continuum H.L., G.Schrieder Eur.Phys.J. A2 (1998) 41

  4. Low Energy Transfer Reactions with Exotic Nuclei

  5. The 9Li+d  8Li+t Reaction @ REX-ISOLDE Data Tlab=2.36 AMeV H.Jeppesen et al. , PLB (2006)

  6. The 9Li+d  8Li+t Reaction @ REX-ISOLDE Theory and Data Tlab=2.36 AMeV C2S=0.89 C2S=0.34 C2S=1.33 H. Jeppesen et al., PLB (2006)

  7. Theory: 9Li+d  10Li+p @ Tlab=2 AMeV 10Li  9Li + n: Spectroscopy in the Continuum

  8. Reaction Mechanism of 2n-Transfer

  9. Two-Neutron Transfer Reactions

  10. 11B(7Li,7Be)11Be Reaction at Tlab=57 MeV Experiment by the Catania Group at IPN-Orsay Tandem Lab

  11. b and CE Response by Continuum QRPA: Dyson Equation and Multipole Response Functions

  12. QRPA Fermi-type Beta-Response

  13. QRPA GT-type Beta-Response

  14. DWBA-Analysis of 11B(7Li,7Be)11Be at Tlab=57MeV 11B(7Li,7Be)11Be(1/2+,g.s.) 11B(7Li,7Be)11Be(5/2+,1.77) F. Cappuzzello, H.L. et al, NPA 739 (2004) 30

  15. 11B(7Li,7Be)11Be Reaction at Tlab=57 MeV: NN Interactions and Cross Section

  16. The Neutron Halo in 19C: Transition from Mean-Field to Correlation Dynamics The DCP picture: Binding by Polarization Potential The s.p. shell model picture: Static Potential H.L.,J. Prog.Part.Nucl. 561 (2003);C. Nociforo, H.L., Nucl.Phys (2006)

  17. Shape and Size of 19C and 16O 19C18C+n at Tlab=910AMeV on a C-Target: Gtheo =69MeV/c Gexp =68±3MeV/c s(-1n,theo)=192mb s(-1n,exp )=233±51mb z (x,y) √<r2>(1/2+) = 5.34 fm S = 0.40 √<r2>(1/2-) = 2.96 fm S = 0.97

  18. Correlation Dynamics in the Continuum: Fano-Resonances in 15C G~60…140keV S. Orrigo, H.L., PLB (2006) in print

  19. Summary and Outlook • Nuclear Structure  Nuclear Reactions • Reaction Theory far off Stability • Reaction Dynamics • Elastic Channels  Optical Potentials • New Phenomena: Fano Resonances … • Continuum Dynamics • to be addressed: optical Potentials, Transition Form Factors, Reactions at Relativistic Energies (FAIR) Contributors: Sonja Orrigo, Nadia Tsoneva, Chiara Nociforo, F. Cappuzzello, C. Keil

  20. The Binding Energy of Ni-Isotopes: HFB Binding Energies Non-relativistic HFB Calculations (D3Y G-Matrix: DME with 3-body forces)

  21. Measuring Neutron Skins along Isotopic Chains (Ni,Sn…): p + A Absorption at FAIR – AIC Proposal P. Kienle, NMB 214 (2004) H.L., P. Kienle, nucl-th/0502065; PLB (2006)

  22. Measuring Neutron Skins (Ni,Sn…): Antiproton Absorption on Exotic Nuclei H.L., P. Kienle, PLB (2006); nucl-th/0502065

  23. (7Li,7Be) CE X-Sections and Beta-Response

More Related