Light bound states of heavy fermions
arXiv:0811.1387 · doi:10.1016/j.physletb.2010.08.076
Abstract
In the Standard Model, a group of heavy fermions, e.g. top quarks, can collectively strongly affect the Higgs field and create relatively long-lived bound states. If there exist new generations of fermions with masses beyond 1 TeV, strong binding of several of them can make them lighter than even a single heavy fermion. Using the mean field approximation we find multi-fermion states with masses M ~ 5 v N^{1/2} ~ 1.2 N^{1/2} TeV, with N=2,3... being the total number of heavy fermions bound together, and v=246 GeV the Higgs VEV. The experimental search for multi-fermions within the range of energies 2-3 Tev would either discover them, or suggest absence of new Standard Model fermions with larger masses. Possible implications related to multi-top states and baryonic asymmetry of the Universe are discussed.
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Cited by in corpus (14)
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- Multi-fermion states for heavy fermions bound via Higgs exchange
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- Quantum Corrections to Multi-Quanta Higgs-Bags in the Standard Model
- Decays of Fourth Generation Bound States