The Background Field Method and the S Matrix

May, 1983
9 pages
Published in:
  • Nucl.Phys.B 229 (1983) 372-380
  • Published: 1983
Report number:
  • BRX-TH35

Citations per year

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Abstract: (Elsevier)
We prove that the S -matrix can be correctly obtained from the gauge-invariant effective action in the background field approach to gauge theories. In addition, we present a computation of the two-loop fermionic contributions to the Yang-Mills β-function.
  • GAUGE FIELD THEORY: BACKGROUND FIELD
  • GAUGE FIELD THEORY: EFFECTIVE ACTION
  • GAUGE FIELD THEORY: YANG-MILLS
  • S-MATRIX
  • RENORMALIZATION: BETA FUNCTION
  • FERMION
  • INVARIANCE: GAUGE
  • FEYNMAN GRAPH: HIGHER-ORDER