Work

Composite vectorlike fermions

Year: 2014

Type: article

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.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2014.09.030

Authors: Bogdan A. Dobrescu, Christopher T. Hill

Institution: Fermi National Accelerator Laboratory

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: U.S. Department of Energy, Fermilab

Awards: G585908603, G86560745, G969889393