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Electron and neutrino scattering off the deuteron in a relativistic framework
Journal article   Open access   Peer reviewed

Electron and neutrino scattering off the deuteron in a relativistic framework

A. Grassi, J. Golak, W. N. Polyzou, R. Skibiński, H. Witała and H. Kamada
Physical review. C, Vol.107(2), 024617
02/01/2023
DOI: 10.1103/PhysRevC.107.024617
url
https://www.osti.gov/servlets/purl/2420513View
Open Access

Abstract

We build a relativistic model to perform calculations of exclusive, semiexclusive, and inclusive unpolarized cross sections and various polarization observables in electron and neutrino scattering experiments with deuteron targets. The strong interaction dynamics is defined by an explicit dynamical unitary representation of the Poincaré group, where representations of space translations and rotations in the interacting and noninteracting representations are the same. The Argonne V18 potential is used to construct a relativistic nucleon-nucleon interaction reproducing the experimental deuteron binding energy and nucleon-nucleon scattering observables. Our formalism does not include the pion production channel and neglects two-body contributions in the electromagnetic as well as in the weak nuclear current operator. We show that it is applicable to processes at kinematics, where the internal two-nucleon energy remains below the pion production threshold but the magnitude of the three-momentum transfer extends at least to several GeV.

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