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  • PACS. 12.39.-x Phenomenological quark models – 13.10.+q Weak and electromagnetic interactions of leptons – 14.20.Dh Protons and neutrons  (1)
  • PACS. 12.39.-x Phenomenological quark models – 13.40.Em Electric and magnetic moments – 14.20.Dh Protons and neutrons  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Covariant electroweak nucleon form factors in a chiral constituent-quark model (2002)
    Springer
    The European physical journal 14 (2002), S. 17-21 
    Details
    ISSN: 1434-601X
    Keywords: PACS. 12.39.-x Phenomenological quark models – 13.10.+q Weak and electromagnetic interactions of leptons – 14.20.Dh Protons and neutrons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Results for the proton and neutron electric and magnetic form factors as well as the nucleon axial and induced pseudoscalar form factors are presented for the chiral constituent-quark model based on Goldstone-boson exchange dynamics. The calculations are performed in a covariant framework using the point-form approach to relativistic quantum mechanics. The direct predictions of the model yield a remarkably consistent picture of the electroweak nucleon structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epja/iepja1403
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Nucleon magnetic moments in an extended chiral constituent quark model (2000)
    Springer
    The European physical journal 8 (2000), S. 385-388 
    Details
    ISSN: 1434-601X
    Keywords: PACS. 12.39.-x Phenomenological quark models – 13.40.Em Electric and magnetic moments – 14.20.Dh Protons and neutrons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We present results for the nucleon magnetic moments in the context of an extended chiral constituent quark model based on the mechanism of the Goldstone boson exchange, as suggested by the spontaneous breaking of chiral symmetry in QCD. The electromagnetic charge-current operator is consistently deduced from the model Hamiltonian, which includes all force components for the pseudoscalar, vector and scalar meson exchanges. Thus, the continuity equation is satisfied for each piece of the interaction, avoiding the introduction of any further parameter. A good agreement with experimental values is found. The role of isoscalar two-body operators, not constrained by the continuity equation, is also investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050048
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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