Speaker
Description
We investigate the production of fully heavy pentaquark states in the high-energy limit of QCD, where multi-particle radiation and energy-logarithmic enhancements play a central role. Within this framework, we construct an updated set of multimodal collinear fragmentation functions, denoted PQ5Q1.1, which refine and extend our previous release. The new set incorporates, for the first time, a systematic assessment of perturbative missing higher-order uncertainties and of nonperturbative effects related to the heavy-quark wave function at the origin. Our multimodal approach provides a unified description of the short-distance emission mechanisms underlying both compact multicharm configurations and diquark-quark-diquark topologies. To explore high-energy phenomenology, we employ the (sym)JETHAD interface to compute NLL/NLO$^{+}$ semi-inclusive pentaquark-plus-jet rates, highlighting their behavior in forward kinematics relevant to the HL-LHC and future FCC energies. This study advances the role of exotic multiquark states as probes of energy-logarithmic dynamics, bridging high-energy resummation techniques with the emerging field of exotic spectroscopy.
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