Fully charmed tetraquark production in forward rapidity $pp$ collisions at LHC and FCC energies
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| Autores principales: | , , , |
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| Formato: | Preprint |
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2025
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| _version_ | 1866911523939549184 |
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| author | Celiberto, Francesco G. Giannini, André V. Gonçalves, Victor P. Lima, Yuri N. |
| author_facet | Celiberto, Francesco G. Giannini, André V. Gonçalves, Victor P. Lima, Yuri N. |
| contents | In this paper, we investigate the production of a fully charmed tetraquark state $T_{4c}$ in $pp$ collisions at forward rapidities through the fragmentation mechanism considering the Color Glass Condensate (CGC) formalism and the solution of the running coupling Balitsky-Kovchegov (BK) equation. The contributions of gluon - and charm - initiated processes are taken into account, and the impact of an intrinsic charm component in the proton's wave function is estimated. Predictions for the transverse momentum distribution of the $T_{4c}$ state are presented assuming different rapidities, distinct quantum numbers of the state and center-of-mass energies. Our results indicate that the higher cross-section is associated with the production of a tensor state $T_{4c}(2^{++})$, which is dominated by the gluon-initiated process. In contrast, the production of the axial-vector state $T_{4c}(1^{+-})$ is dominated by the charm-initiated process and is very sensitive to the presence (or not) of an intrinsic charm. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_18984 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fully charmed tetraquark production in forward rapidity $pp$ collisions at LHC and FCC energies Celiberto, Francesco G. Giannini, André V. Gonçalves, Victor P. Lima, Yuri N. High Energy Physics - Phenomenology High Energy Physics - Experiment In this paper, we investigate the production of a fully charmed tetraquark state $T_{4c}$ in $pp$ collisions at forward rapidities through the fragmentation mechanism considering the Color Glass Condensate (CGC) formalism and the solution of the running coupling Balitsky-Kovchegov (BK) equation. The contributions of gluon - and charm - initiated processes are taken into account, and the impact of an intrinsic charm component in the proton's wave function is estimated. Predictions for the transverse momentum distribution of the $T_{4c}$ state are presented assuming different rapidities, distinct quantum numbers of the state and center-of-mass energies. Our results indicate that the higher cross-section is associated with the production of a tensor state $T_{4c}(2^{++})$, which is dominated by the gluon-initiated process. In contrast, the production of the axial-vector state $T_{4c}(1^{+-})$ is dominated by the charm-initiated process and is very sensitive to the presence (or not) of an intrinsic charm. |
| title | Fully charmed tetraquark production in forward rapidity $pp$ collisions at LHC and FCC energies |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2511.18984 |