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  • 24.60.+ m  (1)
  • 24.60.Dr  (1)
  • 25.70.Bc  (1)
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Material
Years
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Simultaneous and sequential transfer of proton and alpha-particle in elastic11B+16O scattering (1992)
    Springer
    The European physical journal 342 (1992), S. 149-159 
    Details
    ISSN: 1434-601X
    Keywords: 24.10.Eq ; 24.50.+g ; 25.70.Bc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have developed a method to treat multi-nucleon transfer as the transfer of two — possibly different — subclusters, as e.g. with “5Li”=(αp). As a consequence we take into account two reaction mechanisms, the one-step simultaneous and the two-step sequential transfer of the two clusters. We formulate the method of calculation of the simultaneous transfer form factor for two non-identical particles and also of the two-cluster spectroscopic amplitudes from shell model wave functions. We apply the method to the elastic transfer reaction11B(16O,11B)11O together with the single α andp transfer reaction11B(16O,15N)12C forE lab between 30 and 60 MeV. We obtain a consistently good description of all the data by reasonable adjustment of the spectroscopic amplitudes. In particular we find that the simultaneous (αp) transfer is considerably more important than the sequential transfer indicating strong five-nucleon correlations in these light nuclei.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01288463
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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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)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Mechanism of reactions induced by 7 MeV deuterons on9Be [(d, p), (d, d), (d, t), (d,4He)] (1989)
    Springer
    The European physical journal 333 (1989), S. 271-279 
    Details
    ISSN: 1434-601X
    Keywords: 24.50.+g ; 24.60.+ m ; 25.50.−n
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Angular distributions of protons, deuterons, tritons and alpha-particles emitted from the reactions in thed+9Be-system atE d =7 MeV as well as excitation functions at selected angles in the energy rangeE d =6.5–7.5 MeV (LAB) were measured. The potential part of the elastic scattering is described by the phenomenological optical model. The compound nucleus contribution to all exit channels is determined using the Hauser-Feshbach model. The collective excitation of the 2.43 MeV excited state of9Be and transfer processes are analysed within the DWBA formalism. The analyses suggest a significant contribution of five-nucleon transfer to the (d,4He) channel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294515
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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