1993/07/27 by R. Bönisch, Bönisch, R.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9307343
arxiv created 1993/07/27 · arxiv updated 2009/11/30
The scalar interaction term of the top mode standard model can be generated by a gauge theory. It is emphasized that in this approach generalization to family space directly yields a heavy top quark while leaving all other quarks massless. By generating the new interaction from gauge extension to custodial SU(2), the standard model bound mtop \stackrel<∼ 200 GeV is pushed to mtop \stackrel<∼ 270 GeV, thereby significantly reducing the amount of finetuning required to match this number.