Field-theoretical description of the deuteron breakup in the clothed particle representation
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arXiv
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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866917439902580736 |
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| author | Shebeko, O. Arslanaliev, A. Kostylenko, Y. Chahar, V. Golak, J. Kamada, H. Polyzou, W. N. Ramírez, D. Skibiński, R. Topolnicki, K. Witała, H. |
| author_facet | Shebeko, O. Arslanaliev, A. Kostylenko, Y. Chahar, V. Golak, J. Kamada, H. Polyzou, W. N. Ramírez, D. Skibiński, R. Topolnicki, K. Witała, H. |
| contents | We present a field-theoretical description of the deuteron electrodisintegration reaction d(e,e'p)n induced by unpolarized and polarized electrons. The approach combines the Lehmann-Symanzik-Zimmermann in(out) formalism with the clothed particle representation in the instant form of relativistic dynamics, providing a fully relativistic and gauge-independent framework based on the Fock-Weyl criterion. Within the method of unitary clothing transformations, one and the same transformation that generates the relativistic nucleon-nucleon interaction (the Kharkiv potential) also induces a fresh family of electromagnetic current operators. As a result, one-body and two-body (meson-exchange) currents emerge on a common footing. We compute differential cross sections and polarization observables with the inclusion of final-state interaction effects and meson-exchange current contributions, and compare the results with Saclay and Jefferson Lab data as well as with earlier theoretical predictions. The role of relativistic ingredients (one- and two-body currents, Fermi-motion effects, etc.) and the interplay between them are analyzed in several kinematic regimes of the experiments at Saclay and Jefferson Lab. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_24457 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Field-theoretical description of the deuteron breakup in the clothed particle representation Shebeko, O. Arslanaliev, A. Kostylenko, Y. Chahar, V. Golak, J. Kamada, H. Polyzou, W. N. Ramírez, D. Skibiński, R. Topolnicki, K. Witała, H. Nuclear Theory We present a field-theoretical description of the deuteron electrodisintegration reaction d(e,e'p)n induced by unpolarized and polarized electrons. The approach combines the Lehmann-Symanzik-Zimmermann in(out) formalism with the clothed particle representation in the instant form of relativistic dynamics, providing a fully relativistic and gauge-independent framework based on the Fock-Weyl criterion. Within the method of unitary clothing transformations, one and the same transformation that generates the relativistic nucleon-nucleon interaction (the Kharkiv potential) also induces a fresh family of electromagnetic current operators. As a result, one-body and two-body (meson-exchange) currents emerge on a common footing. We compute differential cross sections and polarization observables with the inclusion of final-state interaction effects and meson-exchange current contributions, and compare the results with Saclay and Jefferson Lab data as well as with earlier theoretical predictions. The role of relativistic ingredients (one- and two-body currents, Fermi-motion effects, etc.) and the interplay between them are analyzed in several kinematic regimes of the experiments at Saclay and Jefferson Lab. |
| title | Field-theoretical description of the deuteron breakup in the clothed particle representation |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2604.24457 |