Search for vector-like light-flavor quark partners in proton-proton collisions at $\sqrt{s} = $8 TeV

Understand

A search is presented for heavy vector-like quarks (VLQs) that couple only to light quarks in proton-proton collisions at $\sqrt{s} =$ 8 TeV at the LHC.

• The data were collected by the CMS experiment during 2012 and correspond to an integrated luminosity of 19.7 fb$^{-1}$.
• Both single and pair production of VLQs are considered.
• The single-production search is performed for down-type VLQs (electric charge of magnitude 1/3), while the pair-production search is sensitive to up-type (charge of magnitude 2/3) and down-type VLQs.