Speaker
Description
We present a systematic study of all-charm tetraquark fragmentation in high-energy hadronic collisions within a heavy-flavor fragmentation framework in QCD. As part of this program, we construct the TQ4Q2.0 fragmentation functions by consistently incorporating, for the first time, all leading-power partonic fragmentation channels. The calculation combines updated NRQCD-inspired initial-scale inputs with threshold-aware DGLAP evolution implemented through the Heavy-Flavor NonRelativistic evolution (HF-NRevo) scheme. A replica-based uncertainty-quantification strategy incorporating missing-higher-order and long-distance matrix-element uncertainties is implemented, leading to evolved fragmentation-function grids released in LHAPDF6 format. This work promotes a precision-QCD and collider-oriented description of multiquark production dynamics, providing a systematic framework relevant to the interpretation of recent all-charm tetraquark observations at the LHC and to future investigations at next-generation colliders.