Skip to main content
SpringerLink
Log in

On gauge invariance of Breit-Wigner propagators

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

We present an approach to bosonic (Z o,W ±) as well as fermionic (top-quark) Breit-Wigner propagators which is consistent with gauge invariance arguments. In particular, for theZ o-boson propagator we extend previous analyses and show that the part proportional tok μ k v /M 2 must be modified near the resonance. We derive a mass shift which agrees with results obtained elsewhere by different methods. The modified form of a resonant heavy fermion propagator is also given.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. R.G. Stuart: in: Zo physics, Proc. XXVth Rencontres de Moriond, p. 41; J.T.T Van. (ed.) Gif-sur-Yvette: Editions Frontières 1990 M. Consoli, A Sirlin: in: Physics at LEP, J. Ellis, R. Peccei, (eds.) CERN-86-02, 1986, Vol. 1, p. 63ff; B.W. Lynn et al.: ibid., Physics at LEP, J. Ellis, R. Peccei, (eds.) CERN-86-02, 1986, Vol. 1, p. 115ff; D.C. Kenedy, B.W. Lynn, C.J.-C. Im, R.G. Stuart: Nucl. Phys. B321 (1989) 83; A. Borrelli, M. Consoli, L. Maiani, R. Sisto: Nucl. Phys. B333 (1990) 357; J. Ellis: Joint Inter. Lepton-Photon Symposium and Europhysics Conference on High Energy Physics, Geneva, (1991)

    Google Scholar 

  2. G. Lopez Castro, J.L.M. Lucio, J. Pestieau: Mod. Phys. Lett. A6 (1992) 3679 and references therein

    Google Scholar 

  3. A. Sirlin: Phys. Rev. Lett. 67 (1991) 2127

    Google Scholar 

  4. A. Sirlin: Phys. Lett. B267 (1991) 240

    Google Scholar 

  5. S. Willenbrock, G. Valencia: Phys. Lett. B259 (1991) 373

    Google Scholar 

  6. R.G. Stuart: Phys Lett. B262 (1991) 113; Phys. Lett. B272 (1991) 353

    Google Scholar 

  7. R.G. Stuart: CERN-preprint, CERN-TH. 6261/91, Workshop on High-Energy Phenomenology, Mexico City, Mexico 1991 (QCD161, W568, 1991), and references therein

  8. CDF Coll., F. Abe et al.: Physics. Rev. D45 (1992) 3921

    Google Scholar 

  9. J Layssac, G. Moultaka, F.M. Renard, G. Gounaris: Preprint of Montpellier University in 1991, PM/90-42

  10. A. Pilaftsis: Z. Phys. C47 (1990) 95

    Google Scholar 

  11. M. Nowakowski, A. Pilaftsis: Mod. Phys. Lett. A6 (1991) 1933

    Google Scholar 

  12. A. Pilaftsis, M. Nowakowski: Phys. Lett. B245 (1990) 185

    Google Scholar 

  13. G. Eilam, J.L. Hewett, A. Soni: Phys. Rev. Lett 67 (1991) 1979; 68 (1992) 2103 (Comment); R Cruz, B. Grzadkowski, J.F. Gunion: Phys. Lett. B289 (1992) 440

    Google Scholar 

  14. A.S. Joshipura, S.D. Rindani: Phys. Rev. D46, (1992) 3008; D. Atwood et al.: Phys. Rev. Lett 70 (1993) 1364

    Google Scholar 

  15. A. Aeppli, D. Wyler: Phys. Lett. B262 (1991) 125

    Google Scholar 

  16. M. Veltman: Physica 29 (1963) 186

    Google Scholar 

  17. L. Baulieu, R. Coquereaux: Ann Phys. 140 (1982) 163

    Google Scholar 

  18. D.Y. Bardin, A. Leike, T. Riemann, M. Sachwitz: Phys. Lett. B206 (1988) 539

    Google Scholar 

  19. M. Nowakowski, A. Pilaftsis: Mod. Phys. Lett A4 (1989) 821; Z. Phys. C42 (1990) 449

    Google Scholar 

  20. J. Schwinger: Ann Phys. (N.Y.) 9 (1960) 169

    Google Scholar 

  21. R.J. Eden, P.V. Landshoff, P.J. Olive, J.C. Polkinghorne: The analytic S-matrix, Cambridge: Cambridge University Press 1966

    Google Scholar 

  22. S. Dawson: Nucl. Phys. B249 (1984) 42; R.M. Godbole, S.D. Rindani: Phys. Lett. B190 (1987) 192

    Google Scholar 

  23. S.N. Gupta: Quantum electrodynamics p. 192, London: Gordon and Breach 1977

    Google Scholar 

  24. J. Liu: Philadelphia preprint UPR-0525T (Sept. 1992), Phys. Rev. D47 (1993) R1741

  25. D. Atwood et al.: Technion preprint 1992, TECHNION-PH-92-39

Download references

Author information

Author notes

  1. M. Nowakowski

    Present address: Physical Research Laboratory, Navrangpura, 880009, Ahmedabad, India

  2. A. Pilaftsis

    Present address: Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, UK

Authors and Affiliations

  1. Institut für Theoretische Teilchenphysik, Universität Karlsruhe, W-76128, Karlsruhe, Germany

    M. Nowakowski

  2. Institut für Physik, Johannes-Gutenberg Universität, W-55099, Mainz, Germany

    A. Pilaftsis

Authors
  1. M. Nowakowski
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. Pilaftsis
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Nowakowski, M., Pilaftsis, A. On gauge invariance of Breit-Wigner propagators. Z. Phys. C - Particles and Fields 60, 121–125 (1993). https://doi.org/10.1007/BF01650437

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01650437

Keywords

Search

Navigation