Studies on exotic nuclei by proton-induced direct reaction at GSI and FAIR

Journal Article · Mon Feb 26 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2713514· OSTI ID:21056736

Kiselev, O A ^[1]

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1. Gesellschaft fuer Schwerionenforschung, D-64291 Darmstadt (Germany)

The proton-induced direct reactions like elastic, quasi-elastic scattering and knock-out at intermediate energies and inverse kinematics are the most powerful classical methods for obtaining spectroscopic information on the structure of unstable exotic nuclei. Few elastic scattering experiments performed at GSI with the gaseous and liquid hydrogen targets provided the most precise data on a nuclear matter distribution and a halo-core structure of the neutron-rich He and Li isotopes. The measured differential cross sections have been also used for probing density distributions as predicted by various microscopic theories. The comparison of the data with the latest calculations will be shown. The description of the recent experiment with proton-rich 8B and neutron-rich Be isotopes is presented.The experimental conditions at the future facility FAIR will provide unique opportunities for nuclear structure studies on nuclei far off stability, and will allow to reach new regions in the chart of nuclides of high interest for nuclear structure and astrophysics. In particular, predicted luminosity will allow for the investigation of direct reactions with stored and cooled radioactive beams at internal H, He, etc. targets of the storage ring NESR. This technique enables high resolution measurements down to very low momentum transfer and provides a gain in luminosity from accumulation and recirculation of the radioactive beams. In order to explore the experimental conditions for measurements planned at EXL/FAIR setup, a first attempt exploring experimentally the feasibility of its concept has been recently made. A detector setup was installed at the ESR storage ring at GSI, Darmstadt. A 136Xe beam was interacting to an internal hydrogen gas-jet target. The detector setup had all the basic ingredients as foreseen by EXL collaboration. A set of scattering reactions has been studied and the overall performance of the setup demonstrated the feasibility of the EXL experimental approach.

• OSTI ID: 21056736
• Journal Information: AIP Conference Proceedings, Vol. 891, Issue 1; Conference: 6. Symposium on nuclear physics, Tours (France), 5-8 Sep 2006; Other Information: DOI: 10.1063/1.2713514; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM ISOTOPES
BORON 8
COMPARATIVE EVALUATIONS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ESR STORAGE RING
KNOCK-OUT REACTIONS
LITHIUM ISOTOPES
MOMENTUM TRANSFER
NEUTRONS
NUCLEAR MATTER
NUCLEAR STRUCTURE
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PROTONS
QUASI-ELASTIC SCATTERING
SPECTROSCOPIC FACTORS
XENON 136