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arXiv · 2604.13769

Fully Heavy Pentaquarks with JETHAD: A High-Energy Viewpoint

Francesco Giovanni Celiberto
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Abstract

We examine the leading-power fragmentation of fully heavy pentaquarks in high-energy hadronic collisions. To this end, we complete the release of the hadron-structure-oriented PQ5Q1.0 fragmentation functions, by discussing the $P_{5c}$ set and delivering the $P_{5b}$ one. These functions incorporate an improved computation of the initial-scale input for the constituent heavy-quark fragmentation channel, making them particularly suitable for describing both the direct formation of a compact multicharm state and the hadronization from a diquark-antiquark-diquark configuration. For phenomenological applications, we employ the data-validated (sym)JETHAD framework to compute and analyze NLL/NLO$^+$ semi-inclusive production rates of pentaquark-plus-jet systems at the upcoming HL-LHC and the future FCC. This study marks a further step toward connecting hadronic structure, precision QCD, and the emerging physics of exotic matter.

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Francesco Giovanni Celiberto. 2026-04-15. Fully Heavy Pentaquarks with JETHAD: A High-Energy Viewpoint. https://doi.org/10.3390/particles9010023

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