Exclusive photoproduction of vector toponium within the color dipole picture
Abstract
The exclusive photoproduction of the toponium vector meson (ψt) is investigated within the color dipole model. The overlap function between the light-cone wave function of the vector toponium state and the photon wave function is estimated using the Boosted Gaussian approach. Considering the dominance of small dipoles, the dipole-proton scattering amplitude is estimated in terms of parton distribution functions, and predictions for the photoproduction cross-section in the energy range of the proposed Large Hadron electron Collider (LHeC) are presented. Moreover, the cross-sections and rapidity distributions for the exclusive ψt photoproduction in ultraperipheral proton-proton and proton - nucleus collisions at the Large Hadron Collider (LHC) and Future Circular Collider (FCC) energies are calculated. We find that exclusive ψt photoproduction is, in principle, feasible in ultraperipheral pp collisions at the FCC-hh.
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BibTeX
@misc{goncalves2026exclusive,
title = {{Exclusive photoproduction of vector toponium within the color dipole picture}},
author = {Victor P. Goncalves and Bruno D. Moreira and Haimon Trebien},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.28223},
eprint = {2609.28223},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.28223},
}
RIS
TY - UNPB
TI - Exclusive photoproduction of vector toponium within the color dipole picture
AU - Victor P. Goncalves
AU - Bruno D. Moreira
AU - Haimon Trebien
PY - 2026
DA - 2026/09/23
PB - arXiv
DO - 10.48550/arxiv.2609.28223
UR - https://arxiv.org/abs/2609.28223
AB - The exclusive photoproduction of the toponium vector meson (ψ_t) is investigated within the color dipole model. The overlap function between the light-cone wave function of the vector toponium state and the photon wave function is estimated using the Boosted Gaussian approach. Considering the dominance of small dipoles, the dipole-proton scattering amplitude is estimated in terms of parton distribution functions, and predictions for the photoproduction cross-section in the energy range of the proposed Large Hadron electron Collider (LHeC) are presented. Moreover, the cross-sections and rapidity distributions for the exclusive ψ_t photoproduction in ultraperipheral proton-proton and proton - nucleus collisions at the Large Hadron Collider (LHC) and Future Circular Collider (FCC) energies are calculated. We find that exclusive ψ_t photoproduction is, in principle, feasible in ultraperipheral pp collisions at the FCC-hh.
ER -