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| Format: | Preprint |
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2026
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| Online-Zugang: | https://arxiv.org/abs/2604.26789 |
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| _version_ | 1866917447533068288 |
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| author | Cepila, J. Goncalves, V. P. Ridzikova, A. |
| author_facet | Cepila, J. Goncalves, V. P. Ridzikova, A. |
| contents | The impact of the sub - nucleon fluctuations on the Deeply Virtual Compton Scattering (DVCS) process at the Electron - Ion Collider (EIC) is investigated considering proton and nuclear targets. Assuming the hot - spot model, we estimate the energy dependence of the coherent and incoherent cross - sections for different values of the photon virtuality and atomic number. Predictions for the $t$ - distributions are also presented. We demonstrate that the sub - nucleon fluctuations in the proton, as described by the hot - spot model, implies a turn - over in the energy dependence of the incoherent cross - section, with the position of the maximum being dependent of the photon virtuality. Our results indicate that the ratio between the coherent and incoherent cross - sections increases with energy, atomic numbers and for smaller values of $Q^2$. Moreover, we predict a maximum in the $t$ - distribution of the nuclear incoherent cross - section at a fixed center - of - mass energy, which is dependent on the atomic number and $Q^2$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_26789 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Effect of sub-nucleon fluctuations on the DVCS process in proton and nuclear targets at the EIC Cepila, J. Goncalves, V. P. Ridzikova, A. High Energy Physics - Phenomenology The impact of the sub - nucleon fluctuations on the Deeply Virtual Compton Scattering (DVCS) process at the Electron - Ion Collider (EIC) is investigated considering proton and nuclear targets. Assuming the hot - spot model, we estimate the energy dependence of the coherent and incoherent cross - sections for different values of the photon virtuality and atomic number. Predictions for the $t$ - distributions are also presented. We demonstrate that the sub - nucleon fluctuations in the proton, as described by the hot - spot model, implies a turn - over in the energy dependence of the incoherent cross - section, with the position of the maximum being dependent of the photon virtuality. Our results indicate that the ratio between the coherent and incoherent cross - sections increases with energy, atomic numbers and for smaller values of $Q^2$. Moreover, we predict a maximum in the $t$ - distribution of the nuclear incoherent cross - section at a fixed center - of - mass energy, which is dependent on the atomic number and $Q^2$. |
| title | Effect of sub-nucleon fluctuations on the DVCS process in proton and nuclear targets at the EIC |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2604.26789 |