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  • 1
    Electronic Resource
    Electronic Resource
    Analysis of the coincidence method for comparing atomic and nuclear lifetimes (1981)
    Springer
    The European physical journal 301 (1981), S. 362-362 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01421702
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Direct-reaction contributions to projectile-fragment spectra at 10–20 MeV/nucleon (1980)
    Springer
    The European physical journal 295 (1980), S. 177-185 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A direct-reaction model is employed to calculate projectile-fragmentation and transfer spectra for15N and12C which result (at the grazing angle) from bombardment of208Pb by16O, in the energy range between 140 and 315 MeV. The results are in approximate agreement with recent data of Gelbke et al. In the case of15N, the spectral widths suggest a change in mechanism from transfer to fragmentation at about 18 MeV/nucleon; the12C data are best fit by fragmentation throughout this energy range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01413075
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Analysis of the coincidence method for comparing atomic and nuclear lifetimes (1981)
    Springer
    The European physical journal 299 (1981), S. 195-200 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A fully quantum-mechanical analysis is presented of the process in which an incident proton excites both a nuclear resonance and, by electron emission, also a hole in theK-shell which then decays by X-ray emission. The ratio of the intensities of the X-rays emitted before and after compound-nucleus decay is calculated (a) for the case of an isolated nuclear resonance, and (b) for strongly overlapping resonances. We show that in both cases the measured quantity is a branching ratio. The influence of the energy-resolution of the detectors, of the energy spread of the incident beam, and of the structure of the wave packets describing the individual particles in the incident beam is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01443936
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Time delay in nuclear reactions (1979)
    Springer
    The European physical journal 293 (1979), S. 151-163 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The time delays involved under different circumstances in nuclear reactions, e.g., isolated or overlapping resonances, are analysed from the unified point of view of unitarity and of the statistical and analytical properties of theS-matrix. A general theorem is proved which says that the average over then open channels of the time delay of a wave packet covering many resonances (whose average separation isD) is given byħ/(nD). The case of an incoherent superposition of monochromatic beams is also studied and the corresponding time delay is evaluated in the statistical model of Ericson.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01559756
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    Paper (German National Licenses)
    Fulltext
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