Summary
This theoretical physics paper develops new collinear fragmentation functions within the variable-flavour-number scheme to describe the semi-inclusive hadroproduction of bottomoniumlike tetraquark states in proton collisions. The authors extend previous parametrisations using improved heavy-quark models and potential nonrelativistic QCD inputs, providing novel predictions for tetraquark production rates and distributions at the Future Circular Collider. The work applies resummation techniques and hybrid factorisation frameworks to improve theoretical precision for exotic hadron production at high-energy colliders.
UK applicability
This paper addresses fundamental particle physics relevant to international large-scale experiments such as CERN; its findings on exotic hadron production are not directly applicable to UK agricultural, soil, or nutrition research and policy.
Key measures
Fragmentation functions for doubly heavy tetraquarks (X_bb̄qq̄) and fully heavy tetraquarks (T_4b); high-energy distributions of tetraquark-plus-jet systems; NLL/NLO + hybrid factorisation calculations
Outcomes reported
The study provides phenomenological predictions for tetraquark-plus-jet distributions at high-energy collider experiments (14 and 100 TeV). Novel fragmentation function parametrisations are developed for both doubly bottomed and fully bottomed tetraquark production.
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