Speaker
Description
I give an overview of recent progress in understanding the dynamics of heavy-quark fragmentation in the transverse plane. These advances include their all-order factorization in the large and small-mass limits using boosted Heavy-Quark Effective Theory (bHQET) or a twist expansion, respectively, explicit next-to-leading order calculations in bHQET and massive QCD (also relevant for extending fixed-order subtraction schemes to quasi-collinear limits), as well as powerful sum rules arising from heavy-quark spin symmetry that trim down the number of independent nonperturbative matrix elements. I close by presenting exciting prospects for applying tools from Quantum Information theory to TMD heavy-quark fragmentation to distinguish quantum and classical hadronization dynamics.
