Advertisement

Radiative Corrections and Composite Weak Vector Bosons at LEP100/SLC Energies

  • Fawzi Boudjema
Part of the NATO ASI Series book series (NSSB, volume 233)

Abstract

We discuss to which extent the idea that the usual weak vector bosons are composite can survive the stringent tests of precision measurements at LEP100 and SLC. It will be argued that, once the the universality of the weak coupling has been implemented within the composite picture for the observables at the Z peak, one recovers the bulk of the radiative corrections which one usually associates with the the standard model. The discrimination between the SU(2) × U(1) theory and composite W’s can be achieved if one can probe the Higgs sector of the Standard Model or alternatively the additional vector bosons predicted within the composite scheme. This is within the spirit of the B-R-V (Boudjema-Renard-Verzegnassi) strategy that unambiguously identifies models with extra vector bosons once the uncertainties due to the yet unknown parameters of the SU(2) × U(1) theory (heavy top mass, ρ parameter, etc...) have been eliminated.

Keywords

Radiative Correction Vector Boson Grand Unify Theory Weak Boson Polarise Asymmetry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    S.L. Glashow, Nucl. Phys. 22 579 (1961).CrossRefGoogle Scholar
  2. [1a]
    S. Weinberg, Phys. Rev. Lett. 19 (1967) 1264.ADSCrossRefGoogle Scholar
  3. [1b]
    A. Salam, Proc. 8th. Nobel Symposium, ed N. Svartholm, Almquist and Wiksells, Stockholm 1968, p.367.Google Scholar
  4. [2]
    H. Harari, Proc. of the XVIIIth Solvay Conference On Physics, Austin, Texas, USA, November 1982,Google Scholar
  5. [2a]
    H. Harari, Phys. Rep. 104 (1984) 159, ed. by L. Van Hove.ADSCrossRefGoogle Scholar
  6. [3]
    F. Boudjema and N. Dombey, Z. Phys. C35 (1987) 499.ADSGoogle Scholar
  7. [3a]
    F. Boudjema, Ph.D. Thesis, Sussex University, September 1987, unpublished.Google Scholar
  8. [4]
    M.A. Shifman, L. Vainshtein and V. Zakharov, Nucl. Phys. 179 (1981) 390.Google Scholar
  9. [5]
    D. Shildknecht, Proc. of the 8th Int. Workshop on weak Interactions and Neutrinos, ed. A. Morales (World Scientific, Singapore 1983) p. 407.Google Scholar
  10. [6]
    H. Fritzsch and G. Mandelbaum, Phys. Lett. 19B (1982) 224.Google Scholar
  11. [7]
    M. Veltman, Proc. of XXIIIrd Rencontre de Moriond, p. 133, ed. by J. Tran Thanh Van, édition Frontières 1988.Google Scholar
  12. [8]
    F. Schrempp, Habilitationsschrift, June 1986. Preprint MPI-PAE/Pth 32/86.Google Scholar
  13. [9]
    C. Vafa and E. Witten, Nucl. Phys. B234 (1984) 173.MathSciNetADSCrossRefGoogle Scholar
  14. [10]
    G. Gounaris and D. Schildknecht, Z. Phys. C42 (1989) 107. The treatment of radiative corrections in this paper can easily be applied to the VMD approach.Google Scholar
  15. [11]
    M. Veltman, Acta Phys. Pol. B8 (1977) 475;Google Scholar
  16. [11a]
    M. Veltman, Phys. Lett. 70B (1977) 253.ADSGoogle Scholar
  17. [12]
    M. Cvetic and B.W. Lynn, D35 (1987) 51.Google Scholar
  18. [13]
    F. Boudjema and F.M. Renard, Conveners of “Compositeness at LEP” Working Group, CERN Yellow Book, edited By G. Altarelli, R. Kleiss and C. Verzegnassi, In Press.Google Scholar
  19. [14]
    U. Amaldi et al., Phys. Rev. D36 (1987) 1385.ADSGoogle Scholar
  20. [15]
    G. Feldman, Mark II/ SLC — PWG Note#2–24 (1987).Google Scholar
  21. [16]
    See for instance G. Belanger and S. Godfrey, Phys. Rev. D35 (1987) 378.ADSGoogle Scholar
  22. [17]
    V. Barger, E. Maand K. Whisnant, Phys. Rev. D28 (1983) 1618.ADSGoogle Scholar
  23. [17a]
    L. S. Durkin and P. Langacker, Phys. Lett. 166B (1986) 436.ADSGoogle Scholar
  24. [18]
    M. Kuroda, D. Schildknecht and K. H. Schwarzer, Nucl. Phys. B261 (1985) 432.ADSCrossRefGoogle Scholar
  25. [19]
    U. Baur, M. Linder and K. H. Schwarzer, Nucl. Phys. B291 (1987) 1.ADSCrossRefGoogle Scholar
  26. [20]
    U. Baur, M. Linder and K. H. Schwarzer, Phys. Lett. 193B (1987) 110.ADSGoogle Scholar
  27. [21]
    R. Casalbuoni et al., Nucl. Phys. B282 (1987) 235.ADSCrossRefGoogle Scholar
  28. [22]
    F. Boudjema, F.M. Renard and C. Verzegnassi, Nucl. Phys. B314 (1989) 301;ADSCrossRefGoogle Scholar
  29. [22a]
    F. Boudjema, F.M. Renard and C. Verzegnassi, Phys. Lett. 202B (1988) 411.ADSGoogle Scholar
  30. [23]
    F. Boudjema and F.M. Renard, in Polarization at LEP, CERN 88–06 (1988) p.250, ed. by G. Alexander et al..Google Scholar
  31. [24]
    F. Boudjema and A. Djouadi, in preparation.Google Scholar
  32. [25]
    F. Boudjema and A. Djouadi, RWTH-Aachen Preprint Pitha 89/13.Google Scholar

Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • Fawzi Boudjema
    • 1
  1. 1.Physics DepartmentSussex UniversityBrightonEngland

Personalised recommendations