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  • 1990-1994  (3)
  • 1985-1989  (1)
  • 1970-1974  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Quasi-free electron scattering in a relativistic model of the nucleus (1989)
    Springer
    The European physical journal 332 (1989), S. 51-59 
    Details
    ISSN: 1434-601X
    Keywords: 25.30.Fj ; 21.60.−n
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Longitudinal and transverse response functions of quasi-free electron scattering have been calculated in mean field approximation for a relativisticσ-ω model, including non-linearities in theσ-field. As a consequence of the completely consistent and fully relativistic treatment of wave functions and current operators, gauge invariance is perfectly satisfied throughout the calculation. The results indicate that models with the same nuclear bulk properties lead to similar response functions within 10%. Our results agree with the experimental data for12C and238U, but cannot describe the longitudinal response in the Ca-Fe region. Predictions for208Pb are given for comparison with future experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01292580
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Compton scattering on the pion and radiative pion photoproduction from the proton (1994)
    Springer
    The European physical journal 349 (1994), S. 177-184 
    Details
    ISSN: 1434-601X
    Keywords: 13.60.Fz ; 13.40.−f ; 14.40.Aq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The contribution of the pion polarizabilities to radiative pion photoproduction has been investigated. It has been shown how an extrapolation of future experimental data on radiative pion photoproduction to the pion pole can give information on the polarizabilities of pion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01291177
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The Drell-Hearn-Gerasimov sum rule and the constituent quark model (1993)
    Springer
    Few body systems 15 (1993), S. 99-108 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The helicity structure function of the nucleon has been calculated for the constituent quark model and compared to the prediction of the Drell-Hearn-Gerasimov sum rule. The multipole decomposition of the sum rule shows large cancellations between different resonances. The small isoscalar-isovector contribution is related to the admixture of aD-state (“bag deformation”) in the nucleon's wave function. The calculations indicate a relatively slow saturation of this part of the sum rule with excitation energy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01076427
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Relativistic corrections to the Drell-Hearn-Gerasimov sum rule in the constitutent quark model (1994)
    Springer
    Few body systems 16 (1994), S. 143-150 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Relativistic corrections have been calculated for the Drell-Hearn-Gerasimov sum rule in the framework of the constituent-quark model. These corrections lead to additional absorption strength due to relativistic dipole currents in the case of a hyperfine interaction. The introduction of anomalous magnetic moments requires a subtraction of the dispersion integral at infinity. The additional effects of such anomalous moments, however, are numerically very small within the model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01344394
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    3,3 resonance and Nucleon pole model forpp→ppπ0 andpp→pnπ+ (1974)
    Springer
    The European physical journal 267 (1974), S. 393-398 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Nucleon pole and 3,3 resonance pole contributions are considered for the reactionspp→ppπ0 andpp→pnπ + at low and medium incident proton energies. The total and various differential cross sections are calculated, also for polarized nucléons, and compared with experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01669972
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    Paper (German National Licenses)
    Fulltext
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