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HK: Physik der Hadronen und Kerne
HK 24: Nuclear Physics / Spectroscopy III
HK 24.6: Vortrag
Mittwoch, 13. März 2002, 12:30–12:45, B
Systematic study of the structure of neutron rich oxygen isotopes — •Kate Jones — Gesellschaft für Schwerionenforschung (GSI), Planckstr. 1, D-64291 Darmstadt, Germany
The one neutron removal from isotopes of oxygen with A = 17 to 23 has been
studied in complete kinematics using the LAND/ALADIN setup at GSI at
energies
around 500 MeV/A. The radioactive beams were produced via fragmentation
using
the fragment separator, FRS. Targets of carbon and lead have been used to
study the nuclear knock-out and Coulomb dissociation respectively. The
charged
(A-1) fragments and neutrons were detected in coincidence with the
gamma-rays
emitted from excited states of the residual nucleus. The single particle
structure of the projectile can be deduced from the low-lying E1 strength
using a direct break up model. Detailed structural information of the
odd-mass
oxygen isotopes, including the halo
nucleus candidate 23O, has been derived from Coulomb dissociation.
Supported by BMBF (06OF112, 06MZ864) and by GSI (OF ELZ, MZ
KRK).