Speaker
Description
We investigate the inclusive hadroproduction of the pseudoscalar heavy-quarkonium mesons at high transverse momentum, focusing on the 13 TeV LHC energy scale. Our theoretical approach relies on the single-parton collinear factorization framework, where the formation of the heavy-quark bound state is described through Non-Relativistic QCD (NRQCD) at the initial scale at NLO. Central to this study is the first release of public fragmentation function sets for heavy-quarkonium species, NRFF1.0, which evolve via the DGLAP equations and account for all partonic thresholds. We present an analysis by implementing this setup within the symJETHAD multimodular interface, utilizing the NLL/NLO+ hybrid factorization framework and, within the fragmentation approximation, we use Heavy-Flavor Non-Relativistic Evolution (HF-NRevo) scheme to study the quarkonium formation. This work establishes a solid baseline for future phenomenological extensions, including the investigation of heavy-flavor fragmentation function evolution in dense media, such as the hot Quark-Gluon Plasma.