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Theoretical Perspectives The Cosener’s House, Abingdon, Thursday 11 th September 2008

Jeff Tostevin, Department of Physics Faculty of Engineering and Physical Sciences University of Surrey, UK. Theoretical Perspectives The Cosener’s House, Abingdon, Thursday 11 th September 2008.

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Theoretical Perspectives The Cosener’s House, Abingdon, Thursday 11 th September 2008

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  1. Jeff Tostevin, Department of Physics Faculty of Engineering and Physical Sciences University of Surrey, UK Theoretical Perspectives The Cosener’s House, Abingdon, Thursday 11th September 2008

  2. SurreyManchester Jeff Tostevin Mike Birse Jim Al-Khalili Judith McGovern Makito OiNiels Walet Paul Stevenson Ray BishopRon Johnson (Emeritus)(T)Research StaffNatasha Timofeyuk(9/08) Shung-ichi Ando (B, 8/09) Sara Fracasso (B, 2/10) A.N. Other (1/08) Ian Thompson (LLNL, VF) Daniel Phillips (Ohio, VF) Qiang Zhao (ARF)Research studentships3 quota, 2 project (10/09)1 quota Theory “Health” – Post Rolling Grants 2008

  3. TNET: The EURONS European Theory Network 7-11/1 [Surrey +]Quasifree Scattering with Radioactive Ion Beams 7-11/4 [Daresbury + Surrey + ]Workshop on Hard Exclusive Reactions 9-13/6 [Glasgow + ]Ultra High-Intensity Laser Nuclear/Particle Physics 23-27/6 [Plymouth +Strathclyde +]Scaling the heights of the N=Z line above 56-Ni 16-18/9 [York + ]Confrontation and Convergence of Nuclear Theory July 2009 [Tostevin, Surrey + ] ECT* Workshop support and organisation: 08

  4. ‘Contribution’ of circa £15k/yr was supported by EPSRC, and co-ordinated through Surrey (ThompsonTostevin) . Due for renewal / negotiation.“15 Year ECT* Perspective” and future funding meeting at Trento (25-25th September 08)STFC cannot be present – (BJF, JAT) at 25/9 funding meeting. Route for future support is essentially agreed ay 25k Euro per annum level. Future ECT* contributions – a theory facility

  5. Development of hyperspherical formalism • more efficient, approach to construct hyperspherical basis • for many-body systems has been developed • applied to bosonic (cluster) systems 12C = 3α and 16O = 4α Perspectives of new approach are: Advances such ab-initio methods, as correlated hyperspherical harmonics or effective interactions, towards heavier nuclei

  6. Study of threshold behaviour of spectroscopic factors and mirror symmetry in 3-body systems Three-body calculations suggest that spectroscopic factors in mirror systems can be different. The most striking result: For 18O (0+1,2)  17O(5/2+) and 18Ne(0+1,2)  17F(5/2+) Sp/Sn = 1.25 Experimental study of mirror spectroscopic factors, either through knock out reactions on 18O(0+1) and 18Ne(0+1) or in transfer reactions 17O(a,b)18O(0+2) and 17F(c,d)18Ne(0+2), will assess the applicability of three-body models to realistic nuclei.

  7. Dissipative quantum dynamics in nuclear collisions

  8. 100 MeV/nucleon [ 0.54(5) mb ] Example of p-pickup – 22Mg + 9Be  23Al + X (7/2+) Qp=244(21) keV 2+ 1616 keV 1247 keV 0+ Sp=122(19) keV 22Mg+p 23Al 5/2+ A. Gade at al., Phys. Lett. B 666 (2008) 218

  9. +Shell M) 44S Removal strengths at the Fermi surfaces L.A. Riley et al., PhysRev C78, 011303(R) (2008)

  10. Two neutron knockout from 22Mg  20Mg(0+,2+) 22Mg (2n) 75.1 A MeV 0+ Expt. 0+ 84% 2+ ~16% Residue momentum distribution 2+ E. Simpson et al., in preparation

  11. Sigma (mb) 2+ 0+ 4+ 2+ 1 2 28Mg→26Ne (all) – Full calcs, Ed Simpson 28Mg (-2p) on 9Be at 82.3 MeV per nucleon D. Bazin, private communication

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