Unification picture in the minimal supersymmetric SU ( 5 ) model with string remnants

  title={Unification picture in the minimal supersymmetric SU ( 5 ) model with string remnants},
  author={J.L. Chkareuli and I. G. Gogoladze},
  journal={Physical Review D},
The significant heavy threshold effect is found in the minimal supersymmetric $\mathrm{SU}(5)$ model with two adjoint scalars, one of which is interpreted as a massive string mode largely decoupled from the lower-energy particle spectra. This threshold related with the generic mass splitting of the basic adjoint moduli is shown to alter properly the running of gauge couplings, thus giving a natural solution to the string-scale grand unification. The further symmetry condition of the (top-bottom… Expand
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  • Phys. B 193, 150 (1981); N. Sakai, Z. Phys. C 11, 153
  • 1981
  • Rev. D 52, 3081 (1995); M. Bastero-Gil and J. Perez- Mercader, Nucl. Phys. B 450, 21 (1995); J. Bagger, K. Matchev and D. Pierce, Phys. Lett. B 348, 443 (1995); K. Dienes and A. Faraggi, Phys. Rev. Lett. 75, 2646 (1995); J.L. Chkareuli, I.G. Gogoladze and A.B. Kobakhidze, Phys. Lett. B 376, 111
  • 1996
  • Rev. D 50, 7048 (1994); M. Carena, M. Olechowski, S. Pokorski and C.E.M. Wagner, Nucl. Phys. B 426, 269
  • 1994
  • Rev. D 47, 5018 (1993); C. Bachas, C. Fabre and T. Yanagida, Phys. Lett. B 370, 49
  • 1996
  • Phys. Lett. A 10, 2267
  • 1995
  • Phys. Lett. A 6, 1745 (1991); J. Ellis, S. Kelley and 4 D.V. Nanopoulos, Phys. Lett. B 260, 131 (1991); U. Amaldi, W. de Boer and H. Fürstenau, Phys. Lett. B 260, 447 (1991); P. Langacker and M. Luo, Phys. Rev. D 44, 817
  • 1991