PreprintarXiv licencearXiv
Hadronisation of in-medium cc̅ pairs to the exotic X(3872)
Abstract
The production ratios of hidden-charm hadrons observed in nuclear collisions reflect the degree of separation that the precursor cc̅ pair develops inside the quark-gluon plasma. The respective hadronisation amplitude manifests this relation through the position-space inner products of the in-medium and in-vacuum cc̅ wave functions. The exotic X(3872), whose structure accommodates a dominant loosely bound molecular component together with a smaller compact component, stands as a novel hard probe of this spatial dependence. In this Letter, relative production measurements of J/ψ, ψ(2S) and X(3872) hadrons performed by the LHC collaborations are understood through the spatial dispersion of in-medium charm anti-charm systems.
Related
- Deformation, halo, and bubble structure: A paradigm shift of exotic phenomena in light to medium mass nuclei
- Anomalous soft photon production can be understood as photon emission during hadronisation
- Towards Hadronisation on GPUs
- The role of strangeness and baryon enhancement in heavy-quark hadronisation from pp to Pb−Pb collisions with ALICE
- Heavy-flavour production and correlations in pp collisions: precision tests of pQCD and hadronisation with ALICE
BibTeX
@misc{legoinha2026hadronisation,
title = {{Hadronisation of in-medium $c\bar c$ pairs to the exotic $X(3872)$}},
author = {Henrique Legoinha and Bernardo Picão and Pedro Bicudo},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2606.23261},
eprint = {2606.23261},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.23261},
}
RIS
TY - UNPB
TI - Hadronisation of in-medium cc̅ pairs to the exotic X(3872)
AU - Henrique Legoinha
AU - Bernardo Picão
AU - Pedro Bicudo
PY - 2026
DA - 2026/10/21
PB - arXiv
DO - 10.48550/arxiv.2606.23261
UR - https://arxiv.org/abs/2606.23261
AB - The production ratios of hidden-charm hadrons observed in nuclear collisions reflect the degree of separation that the precursor cc̅ pair develops inside the quark-gluon plasma. The respective hadronisation amplitude manifests this relation through the position-space inner products of the in-medium and in-vacuum cc̅ wave functions. The exotic X(3872), whose structure accommodates a dominant loosely bound molecular component together with a smaller compact component, stands as a novel hard probe of this spatial dependence. In this Letter, relative production measurements of J/ψ, ψ(2S) and X(3872) hadrons performed by the LHC collaborations are understood through the spatial dispersion of in-medium charm anti-charm systems.
ER -