Identifying Boosted New Physics With Non-Isolated Leptons

We demonstrate the utility of leptons which fail standard isolation criteria in searches for new physics at the LHC. These leptons could arise in a highly boosted signal decaying to both leptons and quarks, and have been missed by current search strategies. We offer an alternate signal-background discernment to the standard isolation variables, showing through a proof-of-principle search for R-parity violating supersymmetry both the experimental reach attained by including non-isolated leptons in this search and the utility of this new substructure variable over the existing techniques.