Spinor and isospinor structure of relativistic particle propagators

Jul, 1993
8 pages
Published in:
  • Phys.Lett.B 318 (1993) 1, 122-126,
  • Phys.Lett.B 331 (1994) 3-4, 449 (erratum)
e-Print:
Report number:
  • IC-93-197

Citations per year

199620022008201420183201
Abstract: (desy)
Representations by means of path integrals are used to find spinor and isospinor structure of relativistic particle propagators in external fields. For Dirac propagator in an external electromagnetic field all grassmannian integrations are performed and a general result is presented via a bosonic path integral. The spinor structure of the integrand is given explicitly by its decomposition in the independent γ\gamma-matrix structures. Similar technique is used to get the isospinor structure of the scalar particle propagator in an external non-Abelian field.
  • particle: Dirac
  • particle: relativistic
  • electromagnetic field
  • propagator
  • path integral: Grassmann
  • spinor
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