TQ4Q2.0 Fragmentation Functions for Fully Heavy Tetraquark Production
Abstract
We investigate the fragmentation dynamics underlying the production of fully heavy tetraquarks by means of the TQ4Q2.0 collinear FF set, covering scalar (0++), axial-vector (1+−), and tensor (2++) configurations. The fragmentation inputs are determined within NRQCD factorization for the complete set of relevant partonic channels and are subsequently evolved across heavy-flavor thresholds through the HF-NRevo scheme. Perturbative uncertainties associated with fragmentation-scale variations are consistently propagated together with nonperturbative effects encoded in color-composite long-distance matrix elements. Attention is devoted to the axial-vector sector, whose fragmentation pattern makes it especially sensitive to intrinsic-charm contributions at LHC and FCC energies. TQ4Q2.0 therefore provides an uncertainty-aware framework for exploring fully heavy tetraquark production over a broad kinematic range and for connecting exotic-hadron spectroscopy with the partonic structure of the proton.
Related
- The bb̅cc̅ Fully Heavy Tetraquark at the LHC and the FCC: Multimodal Fragmentation and Observability
- Feasibility Study of e+e-→ ηcJ/ψ Production and Fully-Charmed Tetraquark Searches at STCF
- Next-to-leading order QCD corrections to fully charm tetraquark hadronic decay
- Next-to-leading order QCD corrections to fully charm tetraquark radiative decays
- Fully-beauty tensor tetraquark
BibTeX
@misc{celiberto2026tq4q20,
title = {{TQ4Q2.0 Fragmentation Functions for Fully Heavy Tetraquark Production}},
author = {Francesco Giovanni Celiberto},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.04049},
eprint = {2609.04049},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.04049},
}
RIS
TY - UNPB
TI - TQ4Q2.0 Fragmentation Functions for Fully Heavy Tetraquark Production
AU - Francesco Giovanni Celiberto
PY - 2026
DA - 2026/09/03
PB - arXiv
DO - 10.48550/arxiv.2609.04049
UR - https://arxiv.org/abs/2609.04049
AB - We investigate the fragmentation dynamics underlying the production of fully heavy tetraquarks by means of the TQ4Q2.0 collinear FF set, covering scalar (0^++), axial-vector (1^+−), and tensor (2^++) configurations. The fragmentation inputs are determined within NRQCD factorization for the complete set of relevant partonic channels and are subsequently evolved across heavy-flavor thresholds through the HF-NRevo scheme. Perturbative uncertainties associated with fragmentation-scale variations are consistently propagated together with nonperturbative effects encoded in color-composite long-distance matrix elements. Attention is devoted to the axial-vector sector, whose fragmentation pattern makes it especially sensitive to intrinsic-charm contributions at LHC and FCC energies. TQ4Q2.0 therefore provides an uncertainty-aware framework for exploring fully heavy tetraquark production over a broad kinematic range and for connecting exotic-hadron spectroscopy with the partonic structure of the proton.
ER -