Skip to main content
Log in

An effective theory of a compositeZ

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

It is shown that the experimental value of sin2 θw can be obtained if theZ is a bound state of two haplons provided that the haplons carry a new hypercolour quantum number in addition to colour. This approach also leads to the prediction that the electromagnetic couplings of theZ are substantially larger than they are in standard electroweak theory. It may be possible to observe these anomalous couplings in the processe + e Zγ at LEP 200 where theZ is longitudinally polarised.

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.

Similar content being viewed by others

References

  1. P.T. Matthews, A. Salam: Rev. Mod. Phys. 23 (1951) 311

    Google Scholar 

  2. J. Hamilton, W.S. Woolcock: Rev. Mod. Phys. 35 (1963) 737

    Google Scholar 

  3. G.F. Chew, M.L. Goldberger, F.E. Low, Y. Nambu: Phys. Rev. 106 (1957) 1337

    Google Scholar 

  4. F.E. Low: Phys. Rev. 96 (1954) 1428; M. Gell-Mann, M.L. Goldberger: Phys. Rev. 96 (1954) 1433

    Google Scholar 

  5. J. Steinberger: Phys. Rev. 76 (1949) 1180

    Google Scholar 

  6. R.P. Feynman, M. Gell-Mann: Phys. Rev. 109 (1958) 193

    Google Scholar 

  7. S.A. Bludman: Nuovo Cimento 9 (1958) 433

    Google Scholar 

  8. G. 'tHooft: Nucl. Phys. B 35 (1971) 167

    Google Scholar 

  9. S.L. Glashow: Nucl. Phys. 22 (1961) 579

    Google Scholar 

  10. S. Weinberg: Phys. Rev. Lett. 19 (1967) 1264; see also A. Salam: Elementary particle theory. N. Svartholm (ed.), p. 367. Stockholm: Almquist and Wiskell and G. 'tHooft: op. cit.

    Google Scholar 

  11. N. Dombey: Surv. High Energy Phys. 3 (1982) 1

    Google Scholar 

  12. O.W. Greenberg, J. Sucher: Phys. Lett. 99 B (1981) 339; L. Abbott, E. Farhi: Phys. Lett. 101B (1981) 69; H. fritzsch, G. Mandelbaum: Phys. Lett. 102B (1981) 319

    Google Scholar 

  13. J.J. Sakurai: Currents and mesons. Chicago: University of Chicago Press 1969

    Google Scholar 

  14. F. Boudjema; Aspects of the Z boson. D. Phil. dissertation submitted to the University of Sussex, 1987

  15. H. Fritzsch, P. Minkowski: Nucl. Phys. B 103 (1976) 61

    Google Scholar 

  16. P. Mohapatra, D.P. Sidhu: Phys. Rev. Lett. 38 (1977) 667

    Google Scholar 

  17. E. Cohen, J. Ellis, K. Enqvist, D.V. Nanopoulos: Phys. Lett. B 161 (1985) 76

    Google Scholar 

  18. W.R. Frazer, J. Fulco: Phys. Rev. Lett. 2 (1959) 365

    Google Scholar 

  19. J.J. Sakurai: Ann. Phys. (N.Y.) 11 (1960) 1

    Google Scholar 

  20. S. Okubo: Phys. Rev. 179 (1969) 1629

    Google Scholar 

  21. A. Bramon, E. Masso: Phys. Lett. 104B (1981) 311

    Google Scholar 

  22. R. Tarrach: Z. Phys. C—Particles and Fields 2 (1979) 221; M. Scadron: Rep. Prog. Phys. 44 (1981) 213

    Google Scholar 

  23. F. Gursey, L.A. Radicati: Phys. Rev. Lett. 13 (1964) 175; A. Pais: Phys. Rev. Lett. 13 (1964) 175

    Google Scholar 

  24. M. Perrottet: Cours donne a la 17eme Ecole d'Ete des Particules (Ecole de Gif-sur-Yvette) Clermont-Ferrand, September 1985. CPT-85/P1847, Centre de Physique Theorique. Marseille

    Google Scholar 

  25. P.Q. Hung, J.J. Sakurai: Nucl. Phys. B 143 (1978) 81

    Google Scholar 

  26. J.D. Bjorken: Phys. Rev. D 19 (1979) 335

    Google Scholar 

  27. D. Schildknecht: Weak interactions and neutrinos. A. Morales (ed.), p. 407. Singapore: World Scientific 1983

    Google Scholar 

  28. P. Chen, J.J. Sakurai: Phys. Lett. 110 B (1982) 481

    Google Scholar 

  29. H. Fritszch, Mandelbaum: Phys. Lett. 109 B (1982) 224

    Google Scholar 

  30. G. Altarelli: Proceedings of the XXIII International Conference on High Energy Physics, Berkeley S.C. Loken (ed), Vol. 1, p. 119. Singaporc: World Scientific 1987

    Google Scholar 

  31. A. Barroso, F. Boudjema J. Cole N. Dombey: Z. Phys. C—Particles and Fields 28 (1985) 149

    Google Scholar 

  32. Y. Zeldovich: Sov. Phys. JETP, 6 (1958) 1184

    Google Scholar 

  33. O.W. Greenberg, J. Sucher: op. cit.

    Google Scholar 

  34. F. Boudjema, J. Cole, N. Dombey: RadiativeZ production at LEP, to be published in the Yellow Book on LEP 200, CERN, Geneva 1987; see also [30]

  35. F. Boudjema J. Cole, N. Dombey: Phys. Lett. 177 B (1986) 197

    Google Scholar 

  36. F. Renard: Basics of electron-positron collisions. Paris: Edition Frontieres 1981

    Google Scholar 

  37. K. Hagiwara, R.D. Peccei, D. Zeppenfeld, K. Hikasa: Nucl. Phys. B 282 (1987) 253

    Google Scholar 

  38. B.J. Read, N. Dombey: J. Phys. G 3 (1977) 1659

    Google Scholar 

  39. G. Leibbrandt. Rev. Mod. Phys. 47 (1975) 849

    Google Scholar 

  40. This procedure is similar to that of W. Pauli, F. Villars: Rev. Mod. Phys. 21 (1949) 434

    Google Scholar 

  41. M. Veltman: Proceedings of HEP 83, Brighton; p. 880. Rutherford Appleton Laboratory, 1983

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Boudjema, F., Dombey, N. An effective theory of a compositeZ . Z. Phys. C - Particles and Fields 35, 499–510 (1987). https://doi.org/10.1007/BF01596902

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01596902

Keywords

Navigation