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Constraints on the minimalN=1 supergravity theory from electroweak symmetry breaking

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Zeitschrift für Physik C Particles and Fields

Abstract

We reanalyze the constraints on the minimalN=1 supergravity extension of the standard model arising from the requirement of a correct spontaneous breakdown of the electroweak symmetry. Driven by recent experimental results, we devote special attention to the case of a top quark much heavier than the conventional choice of 40 GeV, used in previous analyses. Our results are stated in a space of phenomenologically meaningful parameters, providing a direct comparison between the constraints fromSU(2)×U(1) breaking and the predictions for supersymmetric particle production. Moreover, an upper bound for the ratio of the two Higgs vacuum expectation values is given, for any value of the top quark mass.

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References

  1. K. Inoue, A. Kakuto, H. Komatsu, S. Takeshita: Prog. Theor. Phys. 68 (1982) 927; ibid. 71 (1984) 413; L. Alvarez-Gaumé, J. Polchinski, M. Wise: Nucl. Phys. B221 (1983) 495; L.E. Iban ez, C. Lopez: Phys. Lett. 126B (1983) 54; Nucl. Phys. B233 (1984) 511; L.E. Ibanez, C. Lopez, C. Munõz: Nucl. Phys. B256 (1985) 218; A. Bouquet, J. Kaplan, C.A. Savoy: Nucl. Phys. B262 (1985) 299

    Google Scholar 

  2. C. Kounnas, A.B. Lahanas, D.V. Nanopoulos, M. Quiros: Nucl. Phys. B236 (1984) 438; J.P. Derendinger, C.A. Savoy: Nucl. Phys. B237 (1984) 307

    Google Scholar 

  3. H. Albrecht et al.: ARGUS Coll.: Phys. Lett. 192B (1987) 245

    Google Scholar 

  4. G. Altarelli: CERN preprint CERN-TH 4855/87 (1987); J. Ellis et al.: CERN preprint CERN-TH 4816/87 (1987)

  5. R. Barbieri, S. Ferrara, C.A. Savoy: Phys. Lett. 119B (1982) 343; R. Arnowitt, A.H. Chamseddine, P. Nath: Phys. Rev. Lett. 49 (1982) 970

    Google Scholar 

  6. J. Ellis, et al.: Nucl. Phys. B238 (1984) 453

    Google Scholar 

  7. I.J. Kroll UA1 Coll.: CERN preprint CERN-EP/87-103 (1987)

  8. R. Barbieri, G.F. Giudice: Nucl. Phys. B306 (1988) 63

    Google Scholar 

  9. H.P. Nilles, M. Nusbaumer: Phys. Lett. 145B (1984) 73; P. Majumdar, P. Roy: Phys. Rev. D30 (1984) 2432; M. Drees, M. Glück, K. Grassie: Phys. Lett. 159B (1985) 118; E. Reya, Phys. Rev. D33 (1986) 773

    Google Scholar 

  10. W. Bartel et al.: Phys. Lett. 146B (1984) 126; B. Adeva et al.: Phys. Lett. 152B (1985) 439

    Google Scholar 

  11. S. Komamiya, Proceedings of the International Symposium on Lepton and Photon Interactions at High Energies, Kyoto (1985)

  12. H. Baer, V. Barger, D. Karatas, X. Tata: Phys. Rev. D36 (1987) 96; G. Gamberini, G.F. Giudice, B. Mele, G. Ridolfi: Phys. Lett. 203B (1988) 453

    Google Scholar 

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Authors and Affiliations

  1. International School for Advanced Studies, Trieste, Italy

    G. F. Giudice

  2. Sezione di Trieste, INFN, I-34014, Trieste, Italy

    G. F. Giudice

  3. Dipartimento di Fisica, Università di Genova, Genova, Italy

    G. Ridolfi

  4. Sezione di Genova, INFN, I-16100, Genova, Italy

    G. Ridolfi

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  1. G. F. Giudice
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  2. G. Ridolfi
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Giudice, G.F., Ridolfi, G. Constraints on the minimalN=1 supergravity theory from electroweak symmetry breaking. Z. Phys. C - Particles and Fields 41, 447–452 (1988). https://doi.org/10.1007/BF01585630

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  • DOI: https://doi.org/10.1007/BF01585630

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