Preprint
Field-theoretical description of the deuteron breakup in the clothed particle representation
ArXiv.org
Cornell University
04/27/2026
DOI: 10.48550/arxiv.2604.24457
Abstract
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.
Details
- Title: Subtitle
- Field-theoretical description of the deuteron breakup in the clothed particle representation
- Creators
- O ShebekoA ArslanalievY KostylenkoV ChaharJ GolakH KamadaW. N PolyzouD RamírezR SkibińskiK TopolnickiH Witała
- Resource Type
- Preprint
- Publication Details
- ArXiv.org
- DOI
- 10.48550/arxiv.2604.24457
- ISSN
- 2331-8422
- Publisher
- Cornell University; Ithaca, New York
- Language
- English
- Date posted
- 04/27/2026
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9985157502902771
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