Skip to main content
Log in

Search for low mass Higgs bosons produced inZ 0 decays

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

A search for light Higgs bosons was performed using the data sample collected in 1990 by the DELPHI detector at LEP, at centre of mass energies between 88.2 and 94.2 GeV. Using the process e+eH 0+Z 0*,Z 0*ff, it is possible to exclude the existence of the standard model Higgs particle with a mass between 0 and 210 MeV/c2 at the 99% confidence level. Extending this analysis to the minimal supersymmetric standard model restricts the lightest neutral Higgs boson to masses above 28 GeV/c2 irrespective of the value of the mixing angle.

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. S.L. Glashow: Nucl. Phys. 22 (1961) 579; S. Weinberg: Phys. Rev. Lett. 19 (1967) 1264; A. Salam: Proceedings nobel symposium, ed. N. Svartholm, p. 367. Stockholm: Almqvist and Wiksells 1968

    Google Scholar 

  2. P.W. Higgs: Phys. Lett. 12 (1964) 132; Phys. Rev. Lett. 13 (1964) 508; Phys. Rev. 145 (1966) 1156; F. Englert, R. Brout: Phys. Rev. Lett. 13 (1964) 321

    Google Scholar 

  3. S.J. Freedman, J. Camp, M. Kroupa: Phys. Rev. Lett. 52 (1984) 240; M.J. Savage, B.W. Filippone, L.W. Mitchell: Phys. Rev. Lett. D37 (1988) 1134: D. Kohler, B.A. Watson, J.A. Becker: Phys. Rev. Lett. 33 (1974) 1628; I. Beltrami et al. Nucl. Phys. A451 (1985) 679; R. Barbieri, T.E.O. Ericson: Phys. Lett. 57B (1975) 270

    Google Scholar 

  4. M. Davier, H. Nguyen Ngoc: Phys. Lett. B22 (1989) 533

    Google Scholar 

  5. ALEPH Coll., D. Decamp et al.: Phys. Lett. B236 (1990) 233; ALEPH Coll., D. Decamp et al.: Phys. Lett. B245 (1990) 289

    Google Scholar 

  6. OPAL Coll., M.Z. Akrawy et al.: Phys. Lett. 251B (1990) 211

    Google Scholar 

  7. L3 Coll., B. Adeva et al.: Phys. Lett. 252B (1990) 518

    Google Scholar 

  8. DELPHI Coll., P. Aarnio et al.: CERN PPE/90-128 to be published in N.I.M.

  9. DELPHI Coll., P. Abreu et al.: Phys. Lett. B241 (1990) 435

    Google Scholar 

  10. F.A. Berends, R. Kleiss: Nucl. Phys. B260 (1985) 32

    Google Scholar 

  11. R. Kleiss et al., in: Z physics at LEP 1, CERN Report-89-08, eds G. Altarelli, R. Kleiss, C. Verzegnassi, Vol. III, p. 69. Geneva: CERN 1989

    Google Scholar 

  12. J.E. Campagne, R. Zitoun: Z. Phys. C — Particles and Fields 43 (1989) 469

    Google Scholar 

  13. P.J. Franzini et al., in: Z physics at LEP 1, CERN Report-89-08, eds G. Altarelli, R. Kleiss, C. Verzegnassi, Vol. II, p. 59. Geneva: CERN 1989

    Google Scholar 

  14. E.W.N. Glover et al., in: Z physics at LEP 1, CERN Report-89-08, eds G. Altarelli, R. Kleiss, C. Verzegnassi, Vol. II, p. 11. Geneva: CERN 1989

    Google Scholar 

  15. DELPHI Coll., P. Aarnio et al.: Phys. Lett. B241 (1990) 425

    Google Scholar 

  16. Particle Data Group, Review of particle properties, Phys. Lett. B239 (1990), section III-28

  17. DELPHI Coll., P. Abreu et al.: CERN-PPE/90-119 (unpublished).

  18. S. Dawson, J.F. Gunion, H.E. Haber, G.L. Kane: Higgs hunter's guide. Menlo Park: Addison Wesley 1989, and references therein

    Google Scholar 

  19. DELPHI Coll., P. Abreu et al.: CERN-PPE/90-167 (unpublished)

  20. DELPHI Coll., P. Abreu et al.: CERN-PPE/90-163 (unpublished)

Download references

Author information

Authors and Affiliations

Authors

Consortia

Rights and permissions

Reprints and permissions

About this article

Cite this article

DELPHI Collaboration., Abreu, P., Adam, W. et al. Search for low mass Higgs bosons produced inZ 0 decays. Z. Phys. C - Particles and Fields 51, 25–35 (1991). https://doi.org/10.1007/BF01579557

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01579557

Keywords

Navigation