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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 336 (1990), S. 159-178 
    ISSN: 1434-601X
    Keywords: 21.60.-n ; 25.30.Dh ; 27.40.+z
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract With high-resolution inelastic electron scattering measurements on46Ti and48Ti the excitation mechanism of the transition into low lying Jπ=1+ states is investigated. The experimental evidence of considerable contribution of the orbital part of theM1 operator to the total transition strength is given by a model dependent analysis of form factors. The possibility of physical relationship to low lying Jπ=1+ states in the rare earth nuclei is discussed in various models. MoreoverE2 form factors and good candidates forM3 form factors are presented.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Keywords: 21.10.Pc ; 25.30.Dh ; 24.50.+g ; 27.20.+n
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The12C(e, e'p)11B g.s reaction has been measured in parallel and anti-parallel kinematics over ap m range of −120〈p m〈120 MeV/c at a centralT p of 90 MeV. In contrast to previous measurements at NIKHEF, both kinematics can be described without enhancement of the transverse form factor of the bound proton (η=0.98(5)). The spectroscopic factor for this transition as determined with the new Mainz data (S α =1.54(5)) is 22% smaller than the NIKHEF value.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 326 (1987), S. 447-454 
    ISSN: 1434-601X
    Keywords: 21.60.CS ; 25.30.Dh ; 27.20.+n
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The line shape and the excitation strength of the very weak first excited J π =1/2+ state at Ex=1.684 MeV in Zeitschrift für Physik Zeitschrift für Physik9Be has been investigated with high-resolution inelastic electron scattering at E0=45 and 49 MeV and scattering angles θ=105°, 117°, 129° and 165°, and with high-resolution inelastic proton scattering at E0=13MeV and θ=15° and 18°. Due to lying just above the neutron threshold the level has a strongly asymmetric line shape which in both experiments can be described consistently with a Breit-Wigner expression modified on the low energy side by the threshold behaviour of the cross section. The resonance energy is ER=1.684 ± 0.007 MeV and the width T=217± 10 keV in thec.m. system. A single particle potential model calculation reproduces the line shape and the resonance parameters fairly well. In addition, the inelastic electron scattering form factor has been measured. In the range of momentum transfersq =0.24-0.46 fm−1 it is dominated by a 0p3/2→ 1s1/2 particle-hole transition. The transition is mainly longitudinal and of isoscalar nature with a strength of B (E1)↑ =0.027 + 0.002 e2 fm2, but a small M2 contribution ofB(M2)↑=8.8 ±1.5 μ N 2 fm2 has also been detected.
    Type of Medium: Electronic Resource
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