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arXiv · 1409.1528

Composite Vectorlike Fermions

Bogdan A. Dobrescu·Christopher T. Hill
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Abstract

We study a dynamical mechanism that generates a composite vectorlike fermion, formed by the binding of an $N$-tuplet of elementary chiral fermions to an $N$-tuplet of scalars. Deriving the properties of the composite fermion in the large $N$ limit, we show that its mass is much smaller than the compositeness scale when the binding coupling is near a critical value. We compute the contact interactions involving four composite fermions, and find that their coefficients scale as $1/N$. Physics beyond the Standard Model may include composite vectorlike fermions arising from this mechanism.

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Bogdan A. Dobrescu, Christopher T. Hill. 2014-09-04. Composite Vectorlike Fermions. https://doi.org/10.1016/j.physletb.2014.09.030

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