Impact of Two-Body Currents on Semi-Exclusive Lepton-Nucleus Reactions
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| _version_ | 1866910008881446912 |
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| author | Rocco, N. Steinberg, N. |
| author_facet | Rocco, N. Steinberg, N. |
| contents | We generalize the spectral-function formalism to describe two-nucleon knockout processes in exclusive kinematics. Significant improvements are introduced both in the treatment of the current operators entering the $Δ$-current contribution and in the modeling of correlations between the two struck nucleons, including a consistent treatment of isospin dependence and the explicit incorporation of angular correlations. The framework is validated through comparisons with relativistic Fermi-gas calculations and with semi-exclusive electron-nucleus scattering data. Our results demonstrate that an accurate description of nuclear dynamics plays a crucial role in modeling this reaction mechanism. We further present a study of selected electroweak observables relevant to neutrino-scattering experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_02231 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Impact of Two-Body Currents on Semi-Exclusive Lepton-Nucleus Reactions Rocco, N. Steinberg, N. Nuclear Theory High Energy Physics - Theory We generalize the spectral-function formalism to describe two-nucleon knockout processes in exclusive kinematics. Significant improvements are introduced both in the treatment of the current operators entering the $Δ$-current contribution and in the modeling of correlations between the two struck nucleons, including a consistent treatment of isospin dependence and the explicit incorporation of angular correlations. The framework is validated through comparisons with relativistic Fermi-gas calculations and with semi-exclusive electron-nucleus scattering data. Our results demonstrate that an accurate description of nuclear dynamics plays a crucial role in modeling this reaction mechanism. We further present a study of selected electroweak observables relevant to neutrino-scattering experiments. |
| title | Impact of Two-Body Currents on Semi-Exclusive Lepton-Nucleus Reactions |
| topic | Nuclear Theory High Energy Physics - Theory |
| url | https://arxiv.org/abs/2602.02231 |