Ponente
Descripción
We present the first comprehensive study of fragmentation into fully heavy tetraquarks, based on the newly released TQ4Q1.1 set of collinear, variable-flavor-number-scheme fragmentation functions. Covering scalar ($0^{++}$), axial-vector ($1^{+-}$), and tensor ($2^{++}$) configurations, our analysis provides a pioneering framework to explore exotic-matter production with precision QCD tools. For the first time, we quantify and propagate key sources of uncertainty, from color-composite long-distance matrix elements to missing higher-order contributions in both the hard and fragmentation sectors. This work offers a robust reference for ongoing analyses at the LHC and for future explorations at its High-Luminosity upgrade and next-generation accelerators. As an outlook, we discuss the potential of a multimodal fragmentation strategy, aimed at combining different production mechanisms, including diquark clusters and molecular components, to further refine predictions and improve the connection between QCD dynamics and exotic matter phenomenology.
