The bb̅cc̅ Fully Heavy Tetraquark at the LHC and the FCC: Multimodal Fragmentation and Observability
Abstract
We investigate the production of the all-heavy mixed-flavor bb̅ cc̅ tetraquark through a multimodal fragmentation setup combining direct-multiquark and scalar-diquark mechanisms. Standard Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution is applied while preserving threshold consistency through the Heavy-Flavor NonRelativistic evolution (HF-NRevo) scheme. The resulting fragmentation functions (FFs) are then embedded into hybrid high-energy and collinear factorization at next-to-leading order for semi-inclusive tetraquark-plus-jet production. We compare the two mechanisms through rapidity-separation distributions at the 14 TeV High-Luminosity LHC (HL-LHC) and at the 100 TeV Future Circular Collider (FCC), finding a clear phenomenological preference for the direct-multiquark channel over the scalar-diquark mode. Integrated cross sections and expected event yields provide favorable production-level prospects for future searches at the HL-LHC, with substantially enhanced statistics at FCC energies. These results establish a quantitative connection between microscopic formation mechanisms and the prospective observability of the bb̅ cc̅ tetraquark at present and future hadron colliders.
Related
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BibTeX
@misc{bulhoes2026bbcc,
title = {{The $b\barbc\barc$ Fully Heavy Tetraquark at the LHC and the FCC: Multimodal Fragmentation and Observability}},
author = {João V. Bulhões and Francesco G. Celiberto and Victor P. Gonçalves},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.27396},
eprint = {2610.27396},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.27396},
}
RIS
TY - UNPB
TI - The bb̅cc̅ Fully Heavy Tetraquark at the LHC and the FCC: Multimodal Fragmentation and Observability
AU - João V. Bulhões
AU - Francesco G. Celiberto
AU - Victor P. Gonçalves
PY - 2026
DA - 2026/10/19
PB - arXiv
DO - 10.48550/arxiv.2610.27396
UR - https://arxiv.org/abs/2610.27396
AB - We investigate the production of the all-heavy mixed-flavor bb̅ cc̅ tetraquark through a multimodal fragmentation setup combining direct-multiquark and scalar-diquark mechanisms. Standard Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution is applied while preserving threshold consistency through the Heavy-Flavor NonRelativistic evolution (HF-NRevo) scheme. The resulting fragmentation functions (FFs) are then embedded into hybrid high-energy and collinear factorization at next-to-leading order for semi-inclusive tetraquark-plus-jet production. We compare the two mechanisms through rapidity-separation distributions at the 14 TeV High-Luminosity LHC (HL-LHC) and at the 100 TeV Future Circular Collider (FCC), finding a clear phenomenological preference for the direct-multiquark channel over the scalar-diquark mode. Integrated cross sections and expected event yields provide favorable production-level prospects for future searches at the HL-LHC, with substantially enhanced statistics at FCC energies. These results establish a quantitative connection between microscopic formation mechanisms and the prospective observability of the bb̅ cc̅ tetraquark at present and future hadron colliders.
ER -