Deep-inelastic electron-deuteron scattering with spectator nucleon tagging at the electron-ion collider. Extracting free nucleon structure

Abstract

Background: Deep-inelastic scattering (DIS) on the deuteron with spectator nucleon tagging represents a unique method for extracting the free neutron structure functions and exploring the nuclear modifications of bound protons and neutrons. The detection of the spectator (with typical momenta $\lesssim$ 100 MeV/c in the deuteron rest frame) controls the nuclear configuration during the DIS process and enables a differential analysis of nuclear effects. At the future electron-ion collider (EIC) such measurements will be performed using far-forward detectors. Purpose: Simulate deuteron DIS with proton or neutron tagging with the baseline EIC far-forward detector design. Quantify detector acceptance and resolution effects. Study feasibility of free nucleon structure extraction using pole extrapolation in the spectator momentum. Methods: DIS events with proton and neutron spectators are generated using the BeAGLE Monte Carlo generator. The spectator nucleon momentum is reconstructed including effects of detector acceptance and resolution. Pole extrapolation is performed under realistic conditions. The free nucleon structure extraction is validated by comparing with the input model. Results: Proton and neutron spectator detection is possible over the full transverse momentum range $0<p_T<100$ MeV/c needed for pole extrapolation. Resolution effects on the distributions before corrections are ~10% for proton and ~30 for neutron spectators. The overall accuracy of nucleon structure extraction is expected to be at the few-percent level. Conclusions: Free neutron structure extraction through proton tagging and pole extrapolation is feasible with the baseline EIC far-forward detector design. The corresponding extraction of free proton structure through neutron tagging provides a reference point for future studies of nuclear modifications.

arXiv comment32 pages, 18 figures

References in corpus (42)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• An accurate nucleon-nucleon potential with charge-independence breaking
• Generalized Parton Distributions
• Unraveling hadron structure with generalized parton distributions
• Hard Exclusive Reactions and the Structure of Hadrons
• Time-reversal odd distribution functions in leptoproduction
• Semi-inclusive deep inelastic scattering at small transverse momentum
• The Spin Structure of the Nucleon
• Nucleon-Nucleon Correlations, Short-lived Excitations, and the Quarks Within
• Realistic Model of the Nucleon Spectral Function in Few- and Many- Nucleon Systems
• Generalized Parton Distributions in the valence region from Deeply Virtual Compton Scattering
• The Structure of the Proton in the LHC Precision Era
• Minimally non-local nucleon-nucleon potentials with chiral two-pion exchange including $\Delta$'s
• Short Range Correlations and the EMC Effect
• Parton Fragmentation Functions
• Transverse-Spin and Transverse-Momentum Effects in High-Energy Processes
• Leading twist nuclear shadowing phenomena in hard processes with nuclei
• Investigations into the flavor dependence of partonic transverse momentum
• Measurement of the Inclusive ep Scattering Cross Section at Low Q^2 and x at HERA
• Parton Distributions in Nucleons and Nuclei
• The Challenge of the EMC Effect: existing data and future directions
• Evidence for nuclear gluon shadowing from the ALICE measurements of PbPb ultraperipheral exclusive J/ψ production
• Exclusive J/ψ production in ultraperipheral collisions at the LHC: constrains on the gluon distributions in the proton and nuclei
• Measurement of the structure function of the nearly free neutron using spectator tagging in inelastic ${}^2$H(e, e'p)X scattering with CLAS
• Measurement of the neutron F2 structure function via spectator tagging with CLAS
• Nuclear Shadowing in Electro-Weak Interactions
• On the dependence of the wave function of a bound nucleon on its momentum and the EMC effect
• Nuclear suppression from coherent $J/\psi$ photoproduction at the Large Hadron Collider
• Electron Scattering From High-Momentum Neutrons in Deuterium
• Inclusive diffraction in future electron-proton and electron-ion colliders
• Model independent method for determination of the DIS structure of free neutron
• Probing short-range correlations in the deuteron via incoherent diffractive $J/\psi$ production with spectator tagging at the EIC
• Polarized electron-deuteron deep-inelastic scattering with spectator nucleon tagging
• Electron-deuteron deep-inelastic scattering with spectator nucleon tagging and final-state interactions at intermediate x
• Review of High Energy Diffraction in Real and Virtual Photon Proton scattering at HERA
• Neutron spin structure with polarized deuterons and spectator proton tagging at EIC
• Electron-deuteron DIS with spectator tagging at EIC: Development of theoretical framework
• Neutron spin structure from polarized deuteron DIS with proton tagging
• Nuclear shadowing and extraction of F_2p-F_2n at small x from deuteron collider data
• Nuclear shadowing in inclusive and tagged deuteron structure functions and extraction of F_2^p-F_2^n at small x from electron-deuteron collider data
• Generalized parton distributions of light nuclei

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• Event Generators for High-Energy Physics Experiments
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• BeAGLE: Benchmark $e$A Generator for LEptoproduction in high energy lepton-nucleus collisions
• Exclusive $J/\psi$, $\psi (2s)$, and $e^{+}{e}^{-}$ pair production in Au$+$Au ultra-peripheral collisions at RHIC
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