Feynman-Schwinder representation approach to nonperturbative physics Metadata

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Title

  • Main Title Feynman-Schwinder representation approach to nonperturbative physics

Creator

  • Author: Savkli, C.
    Creator Type: Personal
  • Author: Tjon, J.
    Creator Type: Personal
  • Author: Gross, F.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Office of Energy Research.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Energy Research (ER) (United States)

Publisher

  • Name: Thomas Jefferson National Accelerator Facility (U.S.)
    Place of Publication: Newport News, Virginia
    Additional Info: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

Date

  • Creation: 1999-06-01

Language

  • English

Description

  • Content Description: The Feynman-Schwinger representation provides a convenient framework for the calculation of nonperturbative propagators. In this paper the authors first investigate an analytically solvable case, namely the scalar QED in 0+1 dimension. With this toy model they illustrate how the formalism works. The analytic result for the self energy is compared with the perturbative result. Next, using a {chi}{sup 2} {phi} interaction, they discuss the regularization of various divergences encountered in this formalism. The ultraviolet divergence, which is common in standard perturbative field theory applications, is removed by using a Pauli-Villars regularization. They show that the divergence associated with large values of Feynman-Schwinger parameter s is spurious and it can be avoided by using an imaginary Feynman parameter is.
  • Physical Description: 667 Kilobytes pages

Subject

  • Keyword: Dimensions
  • Keyword: Quantum Electrodynamics
  • Keyword: Feynman Path Integral
  • Keyword: Perturbation Theory
  • STI Subject Categories: 72 Physics Of Elementary Particles And Fields
  • Keyword: Schwinger Terms
  • Keyword: Ultraviolet Divergences

Source

  • Journal Name: Phys Review; Journal Volume: C; Journal Issue: 60; Other Information: Submitted to Physical Review, C; No.60, PBD: 1 Jun 1999

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: DOE/ER/40150-1291
  • Report No.: JLAB-THY-99-16
  • Report No.: WM-99-109
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 753194
  • Archival Resource Key: ark:/67531/metadc703650
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