Relativistic Effects in the Electromagnetic Current at GeV Energies

Abstract

We employ a recent approach to the non-relativistic reduction of the electromagnetic current operator in calculations of electronuclear reactions. In contrast to the traditional scheme, where approximations are made for the transferred momentum, transferred energy and initial momentum of the struck nucleon in obtaining an on-shell inspired form for the current, we treat the problem exactly for the transferred energy and transferred momentum. We calculate response functions for the reaction ${}^{2}H(e,e^{\prime }p)n$ at CEBAF (TJNAF) energies and find large relativistic corrections. We also show that in Plane Wave Impulse Approximation, it is always possible to use the full operator, and we present a comparison of such a limiting case with the results incorporating relativistic effects to the first order in the initial momentum of the struck nucleon.

31 pages, 8 figures, Revtex

References in corpus (2)

• Inclusive quasielastic scattering of polarized electrons from polarized nuclei
• Spin Observables in Coincidence Electron Scattering from Nuclei I: Reduced Response Functions

Cited by in corpus (45)

• Superscaling of Inclusive Electron Scattering from Nuclei
• Low-energy excitations and quasielastic contribution to electron-nucleus and neutrino-nucleus scattering in the continuum random phase approximation
• Quaiselastic scattering from relativistic bound nucleons: Transverse-Longitudinal response
• Semi-relativistic description of quasielastic neutrino reactions and superscaling in a continuum shell model
• Gauge and Lorentz invariant one-pion exchange currents in electron scattering from a relativistic Fermi gas
• Extraction of the Neutron Magnetic Form Factor from Quasi-Elastic 3He(pol)(e(pol),e') at Q^2 = 0.1 - 0.6 (GeV/c)^2
• Relativistic mean field approximation to the analysis of 16O(e,e'p)15N data at |Q^2|\leq 0.4 (GeV/c)^2
• Microscopic calculation of the inclusive electron scattering structure function in O-16
• Final-state interactions and superscaling in the semi-relativistic approach to quasielastic electron and neutrino scattering
• Scaling and isospin effects in quasielastic lepton-nucleus scattering in the Relativistic Mean Field Approach
• Impact of low-energy nuclear excitations on neutrino-nucleus scattering at MiniBooNE and T2K kinematics
• Electron- versus neutrino-nucleus scattering
• Relativistic nuclear structure effects in (e,e' vec{p})
• Constraints in modeling the quasielastic response in inclusive lepton-nucleus scattering
• Polarization transfer in ${}^4$He$(\vec{e},e^{\prime }\vec{p})$${}^3$H: is the ratio $G_{Ep}/G_{Mp}$ modified in medium ?
• Delta-isobar relativistic meson exchange currents in quasielastic electron scattering
• Electron versus muon neutrino induced cross sections in charged current quasi-elastic processes
• Seagull and pion-in-flight currents in neutrino-induced $1N$ and $2N$ knockout
• Relativistic Effects in Electromagnetic Meson-Exchange Currents for One-Particle Emission Reactions
• Meson and Isobar Degrees of Freedom in A($\vec{e},e^{\prime }\vec{p}$) reactions at $0.2\le Q^2\le 0.8(GeV/c{)}^2$
• Ground state correlations and mean-field in ${}^{16}$O: Part II
• A new calculation for D(e,e'p)n at GeV energies
• A non factorized calculation of the process ^3He(e,e'p)^2H at medium energies
• Nuclear isospin mixing and elastic parity-violating electron scattering
• The quasielastic 2H(e,e'p)n reaction at high recoil momenta
• Two-Body Electrodisintegration of ${}^3$He at High Momentum Transfer
• Spin-Momentum Correlations in Quasi-Elastic Electron Scattering from Deuterium
• Covariant description of inelastic electron--deuteron scattering:predictions of the relativistic impulse approximation
• Modeling quasielastic interactions of monoenergetic kaon decay-at-rest neutrinos
• RPWIA analysis of dynamical relativistic contributions in ${}^{16}O(\vec{e},e^{\prime }\vec{p})$ reactions
• Unfactorized versus factorized calculations for ^2H(e,e'p) reactions at GeV energies
• Analysis of polarized ${}^{16}$O$(\vec{e},e^{\prime }\vec{p})$ observables within the relativistic distorted wave impulse approximation
• Relativistic effects and two-body currents in ${}^{2}H(\vec{e},e^{\prime }p)n$ using out-of-plane detection
• $A$-dependence of quasielastic charged-current neutrino-nucleus cross sections
• Origin of Relativistic Effects in the Reaction D(e,e'p)n at GeV Energies
• Spin-orbit final state interaction in the framework of Glauber theory for (e,e'p) reactions
• Sensitivity Studies for Extraction of G_E^n from Inclusive and Semi-inclusive Electron Scattering on Polarized 3He
• Off-shell effects in the relativistic mean field model and their role in CC (anti)neutrino scattering at MiniBooNE kinematics
• Kinematical relativistic effects in $(\vec{e},e^{\prime }\vec{N})$ reactions
• Bridging Two Ways of Describing Final-State Interactions in A(e,e'p) Reactions
• Influence of nucleonic motion in Relativistic Fermi Gas inclusive responses
• ${}^2$H$(e,e^{\prime }p)$ observables using a Regge model parameterization of final state interactions
• The ${}^3$He$(e,e^{\prime }p{)}^2$H and ${}^4$He$(e,e^{\prime }p{)}^3$H reactions at high momentum transfer
• Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic $(\vec{e},e^{\prime }p)$ Electron Scattering from Deuterium
• Nuclear medium effects in neutrino- and antineutrino-nucleus scattering