Uncovering tau leptons-enriched semi-visible jets at the LHC

Understand

This Letter proposes a new signature for confining dark sectors at the Large Hadron Collider.

• Under the assumption of a QCD-like hidden sector, hadronic jets containing stable dark bound states could manifest in proton-proton collisions.
• We present a simplified model with a $Z'$ boson yielding the production of jets made up of dark bound states and subsequently leading to the decays of those that are unstable to $\tau$ leptons and Standard Model quarks.
• The resulting signature is characterised by non-isolated $\tau$ lepton pairs inside semi-visible jets.