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  • 1
    Electronic Resource
    Electronic Resource
    7Li-7Li elastic and inelastic scattering at Elab=8–17 MeV (1993)
    Springer
    The European physical journal 346 (1993), S. 47-61 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.B ; 25.70.H
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Elastic and inelastic scattering in the system7Li+7Li was investigated experimentally in the energy range of Elab=8–17 MeV applying the method of kinematic coincidence. Sizeable cross sections were observed in the whole energy range for inelastic excitation of a single7Li nucleus to its first excited state atE *=0.47761 MeV as well as for mutual excitation of both nuclei. Systematic optical model and both one-step and two-step DWBA calculations were performed with the aim of describing in a consistent manner all three channels studied. This was achieved with optical model potentials fitted simultaneously to all elastic scattering data. They were then used to generate form factors for both single and mutual inelastic scattering as well as distorted waves for DWBA description of inelastic scattering considering the same deformation length for all form factors. Potential parameters derived show, despite these constraints, a continuous ambiguity in case of volume absorption while those with surface absorption can be grouped in six distinct families each of them featuring continuous ambiguities. The impact of real and imaginary form factors on single inelastic excitation is reversed for potentials with volume and surface absorption, while mutual excitation is dominated by imaginary form factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01290781
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  • 2
    Electronic Resource
    Electronic Resource
    Investigation of the isospin-forbidden reaction6Li(6Li,d 2)10 B 0+,1 (1993)
    Springer
    The European physical journal 346 (1993), S. 173-179 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Hw ; 24.60.Dr ; 25.70.Ef,Gh ; 27.20.+n
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Angular distributions of the isospin-forbidden reaction6Li(6Li, d2)10 B 0+,1 were measured at six beam energies in the range from 3 to 8 MeV. The contribution of two-step transfer mechanism to the reaction under consideration was found to be negligible. Hauser-Feshbach model cross sections, obtained with parameters derived from a previous analysis of isospin-allowed reactions in the6Li +6Li system are consistent with the data, provided a 2% reduction factor reflecting isospin mixing of compound nucleus levels. From this factor an isospin-breaking matrix element of 〈H c 2 〉1/2≈13 keV was deduced. The presence of one broad or several resonances with (J P ,T)=(1−, 1) or (2−,1) concentrated at an excitation energy of about 30.3 MeV in12C seems to be responsible for the observed shape of angular distributions and their energy dependence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01306075
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    Paper (German National Licenses)
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