LRP- WG3 LRP- WG3 Nuclear structure and dynamicsNuclear structure and dynamicsNuPECC Liaisons: Angela Bracco, Maria BorgeConvener: Rauno Julin Navin AlahariThomas AumannYorick BlumenfeldPeter ButlerHans FynboAndres GadeaWolfram KortenAdam MajGerda NeyensThomas NilssonRobert RothPatricia Roussel-Chomaz Christoph Scheidenberger Andrea VitturiDario Vretenar

Activities so far in August –September 2009 – – 7 Telephone meeting of Subgroups – → a selection of topics → text

Nuclear Spectroscopy subgroup – Evolution of shell structure (Peter Butler)– Proton-Neutron Symmetric Nuclear Matter and Proton Drip-Line (Andres Gadea)– Collective properties of atomic nuclei (Wolfram Korten)– Collective modes and shapes phase transitions at high temperature (Adam Maj)– Hypernuclei (Take Saito invited)– Superheavy Elements (S. Hofmann invited + Ch. Duellmann, M. Schaedel)

Nuclear Reactions and Reaction Dynamics subgroup– Halo nuclei (Patricia Chomaz)– Unbound states and nuclei (Patricia Chomaz)– Transfer reactions and shell structure (Yorick Blumenfeld)– Pairing and two-nucleon transfer reactions (Yorick Blumenfeld)– Deep inelastic transfer reactions (Navin Alahari)– Fusion of light nuclei (Navin Alahari)– Fission (Karl-Heinz Schmidt invited)– Collective excitations (Thomas Aumann) – Quasi-free scattering (Thomas Aumann)

Light exotics subgroup– Linking nucleons with nuclei (Hans Fynbo, Thomas Nilsson)

Ground-state properties subgroup– Masses (Cristoph Scheidenberger)– Charge and matter radii, EOS (Cristoph Scheidenberger)– Long-term future: e-scattering off radioactive nuclei (Cristoph Scheidenberger)– Charge radii (Gerda Neyens)– Nuclear moments and spins (Gerda Neyens) Isomeric beams (Gerda Neyens)

Theory subgroup– Light nuclei- Ab Initio Methods (Robert Roth)– Medium-mass and heavy nuclei -Nuclear Energy Density Functionals–NEDF (Dario Vretenar) + M. Bender – Symmetries-Symmetries in Nuclei and Phase Transitions (Andrea Vitturi) – Some simple considerations on developments in reaction theories (Andrea Vitturi)– + R. Crespo

Key questionsWG3 Nuclear structure and dynamics

• How can we describe complex nuclei in terms of the underlying fundamental interactions ?– How does the nuclear force depend on varying proton-to-neutron ratios?– What is the nature of the nuclear force that binds protons and neutrons

into stable nuclei and rare isotopes?– How are complex nuclei built from their basic constituents

• What is the origin of simple patterns in complex nuclei ?– Multipole response of unstable nuclei - new exotic modes of excitation– Are there new forms of structure, symmetry and collective motion at the

limits of nuclear existence?– How to explain collective phenomena from individual motion?

• How are nuclear properties evolving as a function of spin, temperature and isospin ?– Nuclear structure far-off stability - shell structure, symmetry of nuclear

matter, collective behaviour – How does the ordering of quantum states change away from the line of

stability?

??Applications??

Key items WG3

• Limits of nuclear existence • Shell structure and isospin degree of freedom • Symmetries and Collectivity• Ground state properties• Dynamics of nuclear reactions• Theory development• Development of radioactive beams towards the neutron

and proton drip-lines by In-flight separation and isotope separation online and post-acceleration

• Development of high-intensity stable-ion beams• European/international context• Education and training • Critical size of the community

WG3 Activities - plan

• Review recent achievements and highlights, especially with respect to the NuPECC –Long Range Plan 2004

• Write short text on selected hot topics concentrating on medium and long term ideas as well as facilities and instruments to be needed

• Conduct critical discussion on a draft in the Scoping Meeting • Compile a new draft in accord with the general layout of the FL • Collect additional ideas from European community, especially from

key laboratories and the NuPECC liaisons.• Formulate recommendations and suggest an action plan for the

future• Give a draft to NuPECC for comments by 15 January• Distribute a new draft to the community for comments and organise

a worshop in ??• Present the FL of Nuclear Structure and Dynamics (WG3) in the

Town Meeting • Revise the FL for NuPECC

• Introduction• Limits of nuclear existence • Shell Structure and Isospin Degree of Freedom • Symmetries and Collectivity• Ground state properties• Reactions and dynamics • Theoretical aspects• Methods, Instrumentation • Facilities• Priorities and recommendations

LRP WG3 Content

Boxes for highlights:

Comments • LRP2004 process had too much emphasis on reviewing the

present status. The new one should be more in the "Forward Looks" direction

• It is time to give more support to middle size facilities and projects, including theory and training → strengthen the whole NP community

• We’ll need more that 1-2 facilities !

• How to advertise the innovative applications from the nuclear structure community (detectors, beam development …. )