Top Quark Condensate in Grand Unified Theories
Iwana Inukai, Masaharu Tanabashi, Koichi Yamawaki
Abstract
We propose a top quark condensate scenario embedded in grand unified theories (GUTs), stressing that the gauged Nambu-Jona-Lasinio model has a nontrivial continuum limit (``renormalizability'') under certain condition which is actually satisfied in all sensible GUTs with simple group. The top quark mass prediction in this scenario is shown to be insensitive to the ultraviolet cutoff Λ thanks to the ``renormalizability''. We also discuss a possibility to reduce the top mass prediction in this scenario.
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