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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Sequential emission of neutrons in the reaction16O+64Ni at 7.5–12 MeV per nucleon (1985)
    Springer
    The European physical journal 320 (1985), S. 585-594 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Neutron energy and angular distributions have been studied in coincidence with projectilelike fragments (PF) for quasielastic and deeply inelastic collisions of16O on64Ni at 7.5–12 MeV/u bombarding energy. The neutron yield can be explained assuming only two isotropically emitting sources:i) sequential emission from fully accelerated PF andii) evaporation from fully accelerated targetlike fragments (TF). ForZ=6 andZ=8 ejectiles known excited states in13C and17O could be identified. For oxygen, this suggests a direct excitation process,n pickup from the target. No significant evidence for preequilibrium neutron emission was found even at the highest bombarding energy. The TF temperatures and neutron multiplicities are consistent with the assumption that thermal equilibrium was reached during the binary reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411857
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Angular momentum transfer in the deepinelastic reaction 245 MeV32S +64Ni from neutron angular correlations (1989)
    Springer
    The European physical journal 332 (1989), S. 87-95 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.−z ; 25.70.Lm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In- and out-of-plane angular distributions have been measured for sequential neutron emission from targetlike fragments produced in fully kinetic energy released heavy-ion collisions. Fragment spins were deduced from the out-of-plane anisotropy as a function of mass asymmetry, using a semiclassical statistical model. The results are consistent with rigid rotation of an intermediate complex formed in collisions with partial waves confined to a narrowl-window localized just above the critical angular momentum for complete fusion. The extracted values ofP zz imply rather strong alignment of the fragment spins along the reaction normal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01292584
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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