Skip to main content
Log in

Experimental test of electroweak effects at PETRA energies

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

The differential cross sections for Bhabha scattering and μ pair production, and the total τ pair cross section as measured by the PLUTO detector at PETRA, have been analyzed to extract information on the weak interaction of leptons. The data are compared with unified gauge theories. Since the observed electroweak effects are still consistent with zero (within errors) we can set experimental limits on neutral current parameters atQ 2 values of 950 GeV2. In the framework of the standard SU(2)×U(1) model we find sin2 Θ w <0.52(95% c.l.). In the context of general singleZ o models we can excludeZ o masses of less than 40 GeV.

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

Access this article

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. S. Weinberg: Rev. Mod. Phys.52, 515 (1980) and references therein

    Google Scholar 

  2. A. Salam: Rev. Mod. Phys.52, 525 (1980) and references therein

    Google Scholar 

  3. S.L. Glashow: Rev. Mod. Phys.52, 539 (1980) and references therein

    Google Scholar 

  4. PLUTO Collaboration Ch. Berger et al.: Z. Phys. C4, 269 (1980)

    Google Scholar 

  5. PLUTO Collaboration Ch. Berger et al.: Lepton pair production and search for a heavy lepton ine + e annihilation (to be published in Phys. Lett. B)

  6. F.A. Berends, K.J.F. Gaemers, R. Gastmans: Nucl. Phys. B57, 381 (1973)

    Google Scholar 

  7. F.A. Berends, K.J.F. Gaemers, R. Gastmans: Nucl. Phys. B63, 381 (1973)

    Google Scholar 

  8. F.A. Berends, K.J.F. Gaemers, R. Gastmans: Nucl. Phys. B68, 541 (1974)

    Google Scholar 

  9. F.A. Berends, G.J. Komen: Phys. Lett.63B, 432 (1976)

    Google Scholar 

  10. F.A. Berends, R. Kleiss: DESY 80/66

  11. R. Budny: Phys. Lett.55B, 227 (1975)

    Google Scholar 

  12. K. Winter: Proc. of the International Symposium on Lepton and Photon Interactions at High Energies, Fermilab (1979) 258

  13. E.H. de Groot, D. Schidknecht: Phys. Lett.90B, 427 (1980)

    Google Scholar 

  14. E.H.de Groot, D. Schildknecht: University of Bielefeld Report, BI-TP 80/08

  15. V. Barger et al.: Phys. Rev. Lett.44, 1169 (1980)

    Google Scholar 

  16. MARK J Collaboration D.P. Barber et al.: Phys. Lett.95B, 149 (1980)

    Google Scholar 

  17. R. Marshall: Rutherford Laboratory report RL 80/29 (1980), published in the Proc. of the XVth Rencontre de Moriond, (1980), ed. by Tran Than Van A. Böhm: Talk at the XXth International Conference on High Energy Physics, Madison (USA) July 17–23, 1980, Aachen report PITHA 80/9

Download references

Author information

Authors and Affiliations

Authors

Consortia

Additional information

Supported by the BMFT, FRG

Partially supported by the Norwegian Council for Science and Humanities

partially supported by INFN

Partially supported by Department of Energy, USA

Rights and permissions

Reprints and permissions

About this article

Cite this article

Pluto Collaboration., Berger, C., Genzel, H. et al. Experimental test of electroweak effects at PETRA energies. Z. Phys. C - Particles and Fields 7, 289–293 (1981). https://doi.org/10.1007/BF01431561

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01431561

Keywords

Navigation