Conveners
Advanced Taggers
- Johan Sebastian Bonilla
- Gregor Kasiescka
Several jet flavor identification strategies have been employed to identify jets originating from heavy-flavor quarks and from the decay of heavy Lorentz-boosted objects. Often, separate tagging strategies are utilized for different Lorentz-boost regimes of the target physics object. For instance, in searches for the Higgs boson decaying into a pair of heavy-flavor quarks, a division is made...
We describe a new jet clustering algorithm named SIFT (Scale-Invariant Filtered Tree) that maintains the resolution of substructure for collimated decay products at large boosts. The scale-invariant measure combines properties of kT and anti-kT by preferring early association of soft radiation with a resilient hard axis, while avoiding the specification of a fixed cone size. Integrated...
We present results using an optimized jet clustering with variable $R$, where the jet distance parameter $R$ depends on the mass and transverse momentum $p_T$ of the jet. The jet size decreases with increasing $p_T$, and increases with increasing mass. This choice is motivated by the kinematics of hadronic decays of highly Lorentz boosted top quarks, W, Z, and H bosons. The jet clustering...
Jets are the most familiar and complex physical objects in high-energy physics experiments.
Since jets invariably appear in critical elementary particle processes, identifying their origin has become an essential technique for physical analysis, including new particle searches and precision measurements.
Many particles are produced in jets, detected by particle detectors, and reconstructed...
