English

Non-perturbative unification in the light of LEP results

High Energy Physics - Phenomenology 2015-06-25 v1

Abstract

We consider an alternative to conventional GUTs originally proposed by Maiani, Parisi and Petronzio, where owing to the existence of extra fermion generations at some intermediate scale, the gauge couplings become large at high energies. We first comment on how the non- supersymmetric version of this scenario is ruled out; we then consider the two-loop evolution of the couplings in the supersymmetric extension of this scenario, and check whether such a scenario is feasible in the light of the precies values of couplings now available from LEP.

Keywords

Cite

@article{arxiv.hep-ph/9306269,
  title  = {Non-perturbative unification in the light of LEP results},
  author = {B. Brahmachari and U. Sarkar and K. Sridhar},
  journal= {arXiv preprint arXiv:hep-ph/9306269},
  year   = {2015}
}

Comments

Latex file 7 pages+1 fig. (ps file appended after the latex file), CERN-TH.6913/93