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arXiv · 2401.13640

Relativistic meson-exchange currents in semi-inclusive lepton scattering

Valerio Belocchi·Maria Benedetta Barbaro·Arturo De Pace·Marco Martini
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Abstract

We assess the impact of two-particle--two-hole excitations on the semi-inclusive electron scattering process (e,e'p) using a fully relativistic nuclear model calculation that precisely incorporates antisymmetrization. The calculation encompasses all contributions involving the exchange of a single pion and the excitation of a Delta resonance. Our results are compared with (e,e'p) data on carbon at kinematics where two-nucleon emission dominates. This work represents an essential step towards the microscopic computation of the two-particle--two-hole contribution to semi-inclusive neutrino reactions, crucial in the analysis of neutrino oscillation experiments.

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Valerio Belocchi, Maria Benedetta Barbaro, Arturo De Pace, Marco Martini. 2024-01-24. Relativistic meson-exchange currents in semi-inclusive lepton scattering. https://doi.org/10.1103/physrevc.109.065502

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