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  • 12.40.Aa  (1)
  • 13.75  (1)
  • 24.30.-v  (1)
  • 27.80.+w  (1)
  • 1
    Digitale Medien
    Digitale Medien
    E0 andM1 excitations in56Ni (1991)
    Springer
    The European physical journal 340 (1991), S. 111-117 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 21.10.-k ; 21.60.-n ; 24.30.-v
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The centroid energy and the decay width of the giant monopole resonance in the unstable nucleus56Ni are predicted. The resulting 0+, ΔT=0 strength distribution, including the escape and the spreading width, displays a structure centered at around 18 MeV with the total width of about 5 MeV. We also study theM1 response in this nucleus which shows a strong isovector transition at 9.6 MeV and a weak isoscalar one at 7.5 MeV.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01303822
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  • 2
    Digitale Medien
    Digitale Medien
    On the range of the nucleon-antinucleon interaction (1989)
    Springer
    The European physical journal 334 (1989), S. 467-471 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 13.75 ; 21.30
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The range of theN¯N interaction is re-examined. We find that differences in theN¯N models do have an influence on the region where annihilation predominantly takes place. AN¯N model derived consistently within meson theory leads to an annihilation range around 1 fm in spite of the small Compton wavelength of the exchanged baryons usually advocated in range arguments.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01294754
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  • 3
    Digitale Medien
    Digitale Medien
    Charge distribution differences in heavy mass nuclei (1987)
    Springer
    The European physical journal 326 (1987), S. 361-366 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 21.10.Ft ; 27.80.+w
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The charge density differences between208Pb and206Pb as well as between206Pb and205Tl have been calculated within the generalized theory of finite Fermi systems. Here one describes206Pb and205Tl as correlated two-neutron hole states and two-neutron hole one-proton hole states in208Pb, respectively. We discuss the spectroscopic strength of the 3s-hole and argue that the remaining difference between the theoretical and experimental charge distributions may be connected with the range of validity of Landau's quasi particle concept.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01289538
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  • 4
    Digitale Medien
    Digitale Medien
    Pions in the light-cone nucleon and electromagnetic form factors (1994)
    Springer
    The European physical journal 349 (1994), S. 59-64 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 12.40.Aa ; 13.40.Fn
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The light-cone Fock-state decomposition of the nucleon involves pion-quark core (π′N′ andπ′Δ′) components. The size of the quark core is at present of special importance for the analysis of the onset of colour transparency in the A(e,e′p) reactions. With the light-coneNπ′N′ andNπ′Δ′ vertex functions deduced from experimental data on high-energy proton fragmentation into nucleons and isobars, we evaluate the effect of the pionic cloud on the electromagnetic form factors of nucleons. We find the quark core radius to be about 10% smaller than the nucleon's radius. Analysis of the renormalization of the total nucleon-nucleon cross section for the presence of the pionic cloud suggests a similar core radius.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01296334
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