Title: Boosted-bottom jet tagging for Z-prime boson searches (and other physics beyond the standard model)
HEP Nov23 flyer
Abstract: I will discuss a new scheme for tagging TeV-scale b-jets we call “mu_x tagging," and its application to searches for physics beyond the standard model. At the LHC, the primary method to tag b-jets relies on tracking their charged constituents. However, when highly boosted, track-based b-tags lose efficiency, and the probability to mistake light jets rises dramatically. Using muons from B hadron decay and defining a particular combination "x" of angular information and boost estimation, we find fairly flat efficiencies to tag b-jets, c-jets, and light-quark jets of e_b = 14%, e_c = 6.5%, and e_light = 0.1%, respectively up to multi-TeV energies. I will demonstrate the usefulness of this new scheme by showing the reach for discovery of a leptophobic Z' at the 13 TeV LHC in the dijet channel.