NuPECC-relevant Physics at TU Darmstadt Norbert Pietralla, chair-man physics dept.

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NuPECC-relevant Physics at TU DarmstadtNorbert
Pietralla, chair-man physics dept.
TU Darmstadt 19.017 Students 273 Professors 13
Departments Technical University (50 Engineers,
30 Natural Sciences) Strong Partner for
Large-Infrastructure Science
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TU Darmstadts 13 Departments
Discuss Contribution to NuPECC-relevant Activities

• 1 Law and Economics
• 2 History and social sciences
• 3 Humanities
• 4 Mathematics
• 5 Physics
• 7 Chemistry
• 10 Biology

• 11 Materials and Earth Sciences
• 13 Civil Engineering and Geodesy
• 15 Architecture
• 16 Mechanical Engineering
• 18 Electrical Engineering and Information
  Technologie

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Main areas of research TUDa ? NuPECC

• Accelerator Physics (depts. 18, 5)
• TEMF Weiland, Boine-Frankenheim, Klingbeil
• S-DALINAC N.P., Enders
• Biophysics (depts. 5, 10 )
• Membrane BP Thiel Radiation BiologyDNA
  Repair Löbrich, Drossel
• Radiobiology, Heavy Ion Cancer Therapy Durante
• Material Science Solid State, Applied
  Physics (depts. 11, 5)
• NMR Spectroscopy Vogel, Fujara
• Nanochannels Vogel, Ensinger
• Laser Spectroscopy, Traps, BEC Birkl, Walther
• Nuclear Physics (dept. 5, IKP)
• Expts N.P., Hoffmann, Braun-Munzinger, Enders,
  Kröll, M.Roth
• Theorie Wambach, Langanke, Fischer, R.Roth,
  Berges

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TU Darmstadt Center of Research Excellence
Nuclear and Radiation Physics
InterdisciplinarityETiT/Maths
EuropeanNetworks
Graduate SchoolHGS-Hire
BMBF-Integrated research
TUDa - CRENuclear und Radiation physics
Collaborative Research Center634 - DFG
Instrumentation Nucl. Research
Extreme Matter Institute EMMI
S-DALINAC e-accelerator
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Collaborative Research Centre 634
Scientific Subprojects 12 Scientific
Member s 100 Funding 10 Mio / 4 a
GSI
S-DALINAC
FAIR
Nuclear Structure Astrophysics with Electron
Photon Beams
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Focus of Research Nuclear Structure Groups
N.P., Enders, Kröll, v.Neumann-Cosel
Many Body System

• Generic aspects of Nuclei

Collectivity
Quantum System
Two Component System
Isospin
Shell structure
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Scissors Mode of Deformed Nuclei(discovery
A.Richter et al., 1983 _at_ DALINAC)
Scissors mode classically current loop gt
M1 magnetic dipole excitation electron
scattering photon scattering
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Proton-Neutron symmetric and mixed-symmetric
Excitations (schematic / geometric)
Spherical Nucleus Vibration
Deformed Nucleus Rotation
Proton-Neutron out of Phase Mixed-sym. Vibration
Proton-Neutron out of Phase Scissors Mode
Animation Robert Casperson (Yale)
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Scissors Mode in Vibrational Nuclei
mixed-symmetric Vibration Group N.P.
electron scattering proton scattering
O. Burda et al., Phys. Rev. Lett. (2008).
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E1 strength in (spherical) atomic nuclei
Groups N.P., Enders
Giant Dipole Resonance (GDR) Pygmy Dipole
Resonance (PDR) Two-Phonon excitation (2 ? 3-)
U.Kneissl, N.Pietralla, A.Zilges, J. Phys.G
Nucl. Part. Phys. 32 (2006) R217
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Photonscattering _at_ S-DALINAC Group N.P.
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Recent Evidence for Pygmy Resonanz
130,132Sn GSI Land-FRS Coll.
N82 chain S-DALINAC
? Measurement of Neutron Skin thickness Rn -
Rp A. Klimkiewicz, K. Boretzky et al PRC 76,
051603(R)(2007)
R. Adrich et al PRL 95, 132501(2005)
D. Savran et al PRL 100, 232501(2008)
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NuSTAR _at_ FAIR R3B EXL Groups Kröll,
Enders, N.P.
R3B Reactions with Relativistic Radioactive
Beams
Project _at_ TU Da (BMBF Grants) CALIFA
Crystals/ Readout Detector Characterization_at_ S-DA
LINAC (N.P. / K. Sonnabend)

• knockout, break-up and
• quasi-free scattering

RD on CALIFA - Calorimeter for g-rays and
protons

• CsI / LaBr scintillators
• PM / PD / APD read out

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NuSTAR _at_ FAIR HISPEC/DESPEC, PreSPEC Group
N.P.

• N.P. Co-Spokesperson HISPEC/DESPEC
• The German member of PreSPEC Steering Committee
• BMBF Project (part of NuSTAR.de) HIC for FAIR
• Set-up of AGATA spectrometer Expts
• Approved exptal proposal for AGATA-Demonstrator_at_L
  NL (02/2010)
• Run 1 AGATA detector in CRC 634 (DAGATA tracking
  Polarimeter)

AGATA 4p Array High resolution ?-ray spectroscopy
in flight / high angular resolution
AGATA_at_Low energy branch of Super-FRS
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Further Instrumentation for FAIR Group Enders

• Experiments Planning and Implementation
• e.g. Electron spectrometerfor ELISe project
• Superconducting Fragment Separator

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Radiation and Nuclear Physics Division Group
Hoffmann
Astroparticle Physics
Plasma Physics, Inertial Fusion
Astrophysics Detector development for Satellite
Missions
High Energy Density Physics, EOS
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Theory Nonperturbative Phenoma in QCDQCD Phase
Diagram Group Fischer

• Open questions
• Connection between chiral and deconfinement
  transition
• Behaviour of quarks in quark-gluon-plasma
• Existence of critical point

Method Dyson-Schwinger Equations of QCD
Recent results New order parameter established
for deconfinement transition Christian S.
Fischer, Phys. Rev. Lett. 103(2009)052003
Christian S. Fischer and Richard Williams, Phys.
Rev. Lett. 103(2009)122001
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Theory Nonperturbative Phenoma in QCDMeson
Phenomena Group Fischer

• Some open questions
• Details of internal structure beyond
  simple quark model
• Details of spectra
• Pion-cloud effects in light mesons

Method Bethe-Salpeter- and Dyson-Schwinger
Equations of QCD
Recent results Gluon self-energy and pion
cloud effects in rho-meson Christian S. Fischer
and Richard Williams, Phys. Rev. Lett.
103(2009)122001
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Theory Nuclear Quark Gluon Matter (NQM) Phase
Diagram of Strongly-Interacting Matter Group
Wambach
Chiral models with Polyakov loop (PNJL and PQM)

• reproduce the lattice EoS
• provide physical understanding of lattice
  results
• make predictions for quantities not (yet)
  accessible on the lattice (masses, transport
  coefficients..)
• can be extended to finite chemical potential
  (test lattice procedures)
• provide guidance for lattice extrapolations to
  physical quark masses
• assess critical behavior in the (T,m)-plane
• guide truncation schemes for Dyson-Schwinger
  studies

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Theory Nuclear Quark Gluon Matter
(NQM) Extrapolations to Finite Chem.
Potential Group Wambach
Taylor Expansion of pressure
quark number susceptibility (m/T0.8)
radius of convergence
via algorithmic differentiation
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Prof. Dr. Robert RothModern Nuclear Structure
Theory

• Unitary transformations for QCD-based
  Hamiltonians
• Similarity Renormalization Group Unitary
  Correlation Operator Method

• Exact ab initio solutions for p- sd-shell
  nuclei
• spectroscopy of exotic nuclei Importance
  Truncated NCSM,

• Approximate many-body methods for all masses
• ground states HF(B) MBPT
• excitations RPA, QRPA, SRPA,

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Accelerator PhysicsS-DALINAC Institute for
Nuclear Physics (IKP)
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Accelerator Physics (Dept. ETIT) Group Weiland/
Müller - TEMF
CST Microwave Studio Simulations Development
of on-line simulation tools for accelerators
Dispersion free calculation of wake fields in
accelerator cavities
Electric field in a four-cell cavity at 11 GHz

• More applications
• Design studies of accelerator cavities for
  synchrotrons storage rings
• Beam dynamics simulations for todays and
  tomorrows accelerator projects
• Optimization of high frequency components
• Development of simulation methods for low-energy
  electron beams
• Transient field calculations for superconducting
  magnets
• Optimization of planar pick-ups and kicker
  electrodes

Electric field in the 9-cell superconducting
TESLA cavity at 1.3 GHz
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Accelerator Physics Working Group Weiland/
Müller - TEMF
Optimization of high frequency components
Development of simulation methods for low-energy
electron beams
Improved rf coupler S-DALINAC
Movement of electrons in a pierce gun Parallel
PIC-Simulation

• More applications
• Design studies of accelerator cavities for
  synchrotrons storage rings
• Beam dynamics simulations for todays and
  tomorrows accelerator projects
• Transient field calculations for superconducting
  magnets
• Optimization of planar pick-ups and kicker
  electrodes

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Accelerator Physics Group Enders
Polarized Electron Source _at_ S-DALINAC

• Long. Polarized Electron Beams
• Additional Observables in experiments with
• Polarized photons (scattering from medium heavy
  nuclei)
• Electrons (break-up of light nuclei)
• Demands
• High Degree of Polarization
• High system availability performance
• Stability

e-
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Biophysics Group Drossel

• Modelling of the cellular response to DNA
  radiation damage

• Methods
• Rate equations
• Stochastic simulation
• Network models
• Spatially extended modelling

In collaboration with the GSI biophysics group
and the TU Da biology department (Groups
Cardoso, Hamacher, Durante)
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Biophysics Group Drossel

• Methods
• Rate equations
• Stochastic simulation
• Network models
• Spatially extended modelling

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Solid state physics Material Science Group
Fujara
Identification of (heavy ion induced) radiation
damage, NMR
Irradiation _at_ UNILAC
19F-NMR-profile of an irridiated LiF crystal for
different nuclear spin-echo evolution times

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Solid state physics Material ScienceGroup
Fujara
NMR new method to study radiation defects
19F-NMR-profile of an irridiated LiF crystal for
different nuclear spin
relaxation times
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Solid State Physics / Material Science Dept.GSI
Materials Research Groups Vogel/Ensinger
Liquids in Nano-Channels
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Institute of Applied Physics Groups
Birkl/Walther - APQ (Atoms-Photons-Quanta)

BEC

• Precision Laser Spectroscopy of Forbidden
  Transitions in Highly Charged Ions
• Nuclear structure of H-like ions
• QED effects in high fields
• Nucleus-electron interactions
• Fluorescence Based Beam Diagnostics at ESR and
  SIS300
• Fully optical beam diagnostics
• Improved diagnostics for laser-cooled
• relativistic ion beams
• Proof of strong coupling and crystalline ion
• beams

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Institute of Applied Physics Group Birkl -
APQ (Atoms-Photons-Quanta)
BEC

• G-Factor measurements
• High precision (i.e. 10-9) measurement of
• Anomalous magnetic moments in highly charged
  ions
• Separation of nuclear and QED effects
• Precision test of QED in high fields
• Bose-Einstein Condensation
• BEC in dipole traps and periodic potentials
• Strong coupling between atoms
• in ultracold quantum regime
• Connection to strongly coupled
• nuclear matter (EMMI)

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Summary NuPECC-relevant Physics _at_TU Da

• Instrumentation IKP_at_TU Da
• Accelerator S-DALINAC 110 MeV high-resolution e-
  -beam
• High-intensity photon beams
• Energy-tagged photon-beams
• Longitudinal Polarized e- -beam
• High resolution magnetic e- -Spectrometers
  (QCLAM, Lintott)
• Human Resources _at_TU Da
• 7 Professors in Nuclear Expt.
• 6 Profs in Nuclear Theory
• 12 Profs in EMMI / HIC4FAIR (6 filled already)
• 12 Profs in Material Science Bio-/ Applied-/
  Accelerator- Physics
• 29 Profs with strong activities in NuPECC
  Physics
• Steady support by DFG, BMBF, State of Hesse, TU
  Darmstadt
• for NuPECC-relevant science and
  instrumentation!

Strong Nuclear Science at TU Darmstadt Strong
Partner for GSI / FAIR
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