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NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Activities at Justus-Liebig Universität Gießen for FAIR and.

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Presentation on theme: "NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Activities at Justus-Liebig Universität Gießen for FAIR and."— Presentation transcript:

1 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Activities at Justus-Liebig Universität Gießen for FAIR and NUSTAR activities Christoph Scheidenberger and

2 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Facts founded AD 1607 ~ students (~10% foreigners) > 300 professors ~ scientific staff 11 faculties Focus Medicine, nutrition, chemistry, biology Famous physicists at Gießen: Conrad Röntgen ( ) Wilhelm Wien ( ) Walter Bothe ( ) Wilhelm Hanle ( ) Ewald, Münzenberg SHIP at GSI Metag TAPS, HADES GSI Darmstadt State of Hessen Frankfurt Gießen

3 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Faculty for mathematics, physics, and geography Physics branch: I. Physikalisches Institut-Solid state and material physics II. Physikalisches Institut-Nuclear and hadron physics Institut für Angewandte Physik -Applied physics Institut für Atom- und Molekülphysik - Atomic structure and collisions Institut für Theoretische Physik -Hadron, heavy-ion, solid-state physics Institut für Didaktik der Physik -Analysis of teaching and learning ~400 students 14 professors 36 scientific staff Mechanical workshop Detector laboratories Electronic workshops

4 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Atomic, nuclear and hadron-physics activities – overview Participation and involvement –HADES at GSI –CBMAMI (Mainz) and CBELSA/TAPS (Bonn) –HERMES at DESY –BES-III at IHEP (Beijing) –ATLAS experiment at CERN –FAIR: APPA, CBM, NUSTAR, PANDA Collaboration –I3HP2 –EURONS –SFB "Subnuclear Structure of Matter" (Gießen, Bonn, Bochum) –Helmholtz Alliance "Physics at the Tera scale" International education –Graduiertenkolleg "Complex Systems of Hadrons and Nuclei" (Gießen-Kopenhagen-Helsinki-Jväskylä-Turin, ) –Euroschool on Exotic Beams

5 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Present atomic physics activities in Gießen In-house facilities: several small accelerators for crossed-beams studies of electron-impact ionization of ions electron spectroscopy in atomic collisions External facilities: Installations at heavy-ion storage rings to study electron-ion collisions TSR, MPI-K Heidelberg: –precision collisional spectroscopy of ions –recombination and ionization for astrophysical applications ESR, GSI Darmstadt: –resonance precision spectroscopy, QED and nuclear radii Installations at synchrotron-radiation rings to study photon-ion interactions ALS, LBL Berkeley PETRA-III, DESY Hamburg –to study photoionization and photoexcitation of atomic, molecular and cluster ions

6 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Activities and involvement in FAIR – APPA Physics goals: study of very highly-charged ions and QED effects at the borderline between atomic and nuclear physics, e.g. resonance phenomena and precision spectroscopy relativistic and QED effects, many-electron effects atomic data for astro- and plasma physics Developments: electron and ion beam targets electron spectrometers detectors and DAQ techniques DR probing nuclear charge radii of exotic beams in the ESR C. Brandau et al., PRL 100, (2008) H. Bräuning, A. Müller, S. Schippers

7 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Theory activities and involvement - I Study in-medium properties of hadrons embedded in dense and hot matter, as it is produced in collisions at CBM, hadronic attenuation in nuclear matter, hadron propagation –Dilepton channels (HADES ->Super-HADES), hadronic bremsstrahlung –Drell-Yan processes, strangeness production (HYPHI -> PANDA) Essential for this program: Giessen BUU code (GiBUU), completely reconstructed, modern object-oriented programming (FORTRAN 1995,2003) Off-shell transport for heavy-ion, p+A, pbar+A, pi+A, +A, e+A, +A reactions using same theory and same code! Baseline Test on cold nuclear matter with electrons, photons, neutrinos Explore transverse momentum structure of nucleon by Drell-Yan transverse- momentum spectra in p-pbar annhilitation at PANDA. –Model higher twist (necessary for relatively low s at PANDA) –Determine NLO QCD corrections to transverse momentum distributions by considering short-range correlations of partons. S. Leupold, U. Mosel

8 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Theory activities and involvement - II Strangeness enhancement Multi-strange particle enhancement in A+A Charm suppression Collective flow (v 1, v 2 ) Thermal dileptons Jet quenching and angular correlations High p T suppression of hadrons Nonstatistical event by event fluctuations and correlations Transport description of 1st order phase transitions... Signals of the phase transition: Description of ultra-relativistic heavy-ion collisions "Work horse" PHSD: Parton-Hadron-String Dynamics Off-shell transport theory W. Cassing

9 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Theory of exotic nuclear and hypernuclear systems H. Lenske Density functional theory for nuclei, hypernuclei, neutron stars New modes (e.g. pygmy dipole resonances), dynamical correlations Reaction theory for exotic nuclei and hypernuclei Continuum transfer 10 Li Relativistic breakup 19 CStrangeness production

10 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Experiment activities for PANDA and detector developments EM Calorimeter: based on PbWO4 scintillator crystals improved quality PWO-II (PANDA-R&D) PbWO 4 prototypes of PWO-II R. Novotny

11 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Performance tests with prototype / E / % o C) after the approval of the Technical Design Report (Aug. 2008) production and delivery started (pre-financing by German and Swedish government) crystals delivered and being quality controled at JLU Giessen see arXiv: v1 (October 2008) R. Novotny, W. Kühn, V. Metag succ. PROTO 60 E / MeV

12 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Structure of the nucleon (HERMES, PANDA) M. Düren Physics goals: Study Generalized Parton Distributions: 3-D Tomography of the nucleon Pioneering experiments were done at HERMES Study universality of the concept at PANDA e.g. Apply GPDs at highest energies, e.g. diffractive Higgs production at LHC Development: Novel Cherenkov detector design DISC DIRC

13 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Activities and involvement in FAIR – NUSTAR Key instrument of the NUSTAR collaboration: Super-FRS Developments: - superconducting fragment separator - first and higher-order ion-optical layout - energy buncher and high-resolution spectrometer at R3B - storage-ring complex (CR,RESR,NESR) H. Geissel, CSch.

14 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Higher-order ion-optics of the Super-FRS H. Weick, M. Winkler, H. Geissel

15 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) ILIMA – Isomers, Lifetimes, Masses – studied at the isochronous CR ToF-det1 ToF-det2 Exotic nuclei from Super-FRS to RESR / NESR 28.4 m Simulation of isochronicity in higher order H. Weick, H. Geissel

16 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) ToF detector development for Isochronous Mass Spectrometry at CR Isochronous Mass Spectr. Resolving power ~ 2·10 5 Accuracy 100 keV Duration ~ 50 s Sensitivity single ions High rate limits detection efficiency Small pore size MCPs increase rate capability x 4 Development results: Initial study: W. Plass

17 NuPECC Meeting Darmstadt, October 10th and 11th, 2009Christoph Scheidenberger (GSI and JLU) Novel approach for direct mass measurements of short-lived nuclei Multiple-reflection time-of-flight mass spectrometer W. Plass


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