Speaker
Hanfei Cui
(University College London)
Description
This study presents a QCD jet substructure measurement of the Lund jet plane and the dead cone effect in b- and c-jets from $t\overline{t}$ events. Latest jet flavour tagger (GN2) identifies heavy flavour jets and their decay tracks to probe suppressed emissions at small angles. To isolate pure flavour contributions, we implement a matrix decomposition based on calibrated 2D flavour-tagging scale factors. The results are corrected for detector effects using both classical Iterative Bayesian Unfolding and the unbinned OmniFold method, providing inputs for Monte Carlo modelling and future Lund plane-based taggers.
Author
Hanfei Cui
(University College London)