nupecc meeting darmstadt, october 10th and 11th, 2009christoph scheidenberger (gsi and jlu)...
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
Activities at Justus-Liebig Universität Gießen for FAIRand
NUSTAR activities
Christoph Scheidenberger
and
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
Facts
founded AD 1607
~ 23.000 students (~10% foreigners)
> 300 professors
~ 1.700 scientific staff
11 faculties
Focus
Medicine, nutrition, chemistry, biology
Famous physicists at Gießen:
Conrad Röntgen (1879-1888)
Wilhelm Wien (1899-1900)
Walter Bothe (1929-1932)
Wilhelm Hanle (1941-1969)
Ewald, Münzenberg SHIP at GSI
Metag TAPS, HADES
GSIDarmstadt
State of Hessen
Frankfurt
JUSTU S-LIEBIG - UN IVER SITÄT G IESSEN
Gießen
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph 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
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph 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, 2000-2009)– Euroschool on Exotic Beams
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
Present atomic physics activities in GießenIn-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 collisionsTSR, 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 interactionsALS, LBL Berkeley
PETRA-III, DESY Hamburg
– to study photoionization and photoexcitation of atomic, molecular and cluster ions
I M PA
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph 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 chargeradii of exotic beams in the ESR
C. Brandau et al., PRL 100, 073201 (2008)
H. Bräuning, A. Müller, S. Schippers
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph 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)
http://gibuu.physik.uni-giessen.de/GiBUU
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
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
Theory activities and involvement - II
• Strangeness enhancement • Multi-strange particle enhancement in A+A • Charm suppression• Collective flow (v1, v2)• Thermal dileptons• Jet quenching and angular correlations• High pT 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-relativisticheavy-ion collisions
"Work horse" PHSD: Parton-Hadron-String DynamicsOff-shell transport theory
W. Cassing
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph 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 10LiRelativistic breakup 19C Strangeness production
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph 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)
PbWO4
prototypes of PWO-II
R. Novotny
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
Performance tests with prototype
/ E
/ %
%69.0GeV/E
%78.1
E
(operated @T=-25oC)
after the approval of the Technical Design Report (Aug. 2008)production and delivery started (pre-financing by German and Swedish government)
7.400 crystals delivered and being quality controled at JLU Giessen
see arXiv:0810.1216v1 (October 2008)
R. Novotny, W. Kühn, V. Metag succ.
PROTO 60
E / MeV
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph 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“
),( 0 pppp
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph 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.
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
Higher-order ion-optics of the Super-FRS
H. Weick, M. Winkler, H. Geissel
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
ILIMA – Isomers, Lifetimes, Masses – studied at the isochronous CR
ToF-det1ToF-det2
Exotic nuclei from Super-FRS
to RESR / NESR
28.4 m
Simulation of isochronicity in higher order
H. Weick, H. Geissel
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
ToF detector development for Isochronous Mass Spectrometry at CR
Isochronous Mass Spectr. Resolving power ~ 2·105
Accuracy 100 keV Duration ~ 50 s Sensitivity single ions
1 10 100 10000,1
1
10
100
num
ber
of d
ete
cted
ions
turn number
Ideal detector Expected Experimental Forward Detection efficiency
High rate limits detection efficiency
0 100 200 300 4000
1x107
2x107
3x107
MCPs with 10 m channel Diameter
x 6.0
x 3.4x 6.8x 4.3
Rat
e Li
mit
/ Hz
MCP Gap Voltage
x 1.7
MCPs with 5 m channel Diameter
Small pore size MCPs increase rate capability x 4
Development results:Initial study:
W. Plass
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NuPECC Meeting Darmstadt, October 10th and 11th, 2009 Christoph Scheidenberger (GSI and JLU)
Novel approach for direct mass measurements of short-lived nuclei
Multiple-reflection time-of-flight mass spectrometer
W. Plass