LRP- WG3 Nuclear structure and dynamics NuPECC Liaisons: Angela Bracco, Maria Borge Convener: Rauno Julin Navin Alahari Thomas Aumann Yorick Blumenfeld Peter Butler Hans Fynbo Andres Gadea Wolfram Korten Adam Maj Gerda Neyens Thomas Nilsson Robert Roth Patricia Roussel-Chomaz Christoph Scheidenberger Andrea Vitturi Dario 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 questions WG3 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 …. )