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arXiv · 2508.19879

Exclusive vector-toponium photoproduction in hadronic collisions

Victor P. Goncalves·Luana Santana·Bruno D. Moreira
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Abstract

An exploratory study of the exclusive production of a vector - toponium $\psi_t$ state by photon - hadron interactions is performed considering proton - proton and proton - nucleus collisions at the Large Hadron Collider (LHC) and Future Circular Collider (FCC) energies. The scattering amplitude is calculated using the $k_T$ - factorization formalism assuming that the vector - toponium state can be described by a Gaussian light-cone wave function and considering different models for the unintegrated gluon distribution. Predictions for the rapidity distributions and total cross - sections are presented. Our results indicate that the experimental measurement of this final state will be very difficult for the expected integrated luminosities at the LHC and FCC.

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Victor P. Goncalves, Luana Santana, Bruno D. Moreira. 2025-08-27. Exclusive vector-toponium photoproduction in hadronic collisions. https://arxiv.org/abs/2508.19879

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