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  • 1
    Electronic Resource
    Electronic Resource
    Gauge constraints and electromagnetic properties of off-shell particles (1999)
    Springer
    The European physical journal 5 (1999), S. 417-428 
    Details
    ISSN: 1434-601X
    Keywords: PACS:13.40.Gp Electromagnetic form factors – 13.60.Fz Elastic and Compton Scattering – 14.70.Bh Photons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The consequences of the gauge constraints for off-shellness in the electromagnetic (EM) vertices have been considered, using Compton scattering as an example. We have found that even if the gauge constraint for the 3-point EM Green function allows for off-shell effects in the charge (Dirac) form factor, they vanish in the total Compton scattering amplitude due to the gauge constraint for the 4-point EM Green function only. In addition, the representations of the Compton amplitude in terms of either reducible or irreducible vertices are equivalent for conserved currents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050305
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