Polarized electron-deuteron deep-inelastic scattering with spectator nucleon tagging

Abstract

Background: DIS on the polarized deuteron with detection of a proton in the nuclear breakup region (spectator tagging) represents a unique method for extracting the neutron spin structure functions and studying nuclear modifications. The tagged proton momentum controls the nuclear configuration during the DIS process and enables a differential analysis of nuclear effects. Such measurements could be performed with the future electron-ion collider (EIC) and forward proton detectors if deuteron beam polarization could be achieved. Purpose: Develop theoretical framework for polarized deuteron DIS with spectator tagging. Formulate procedures for neutron spin structure extraction. Methods: A covariant spin density matrix formalism is used to describe general deuteron polarization in collider experiments (vector/tensor, pure/mixed). Light-front (LF) quantum mechanics is employed to factorize nuclear and nucleonic structure in the DIS process. A 4-dimensional representation of LF spin structure is used to construct the polarized deuteron LF wave function and efficiently evaluate the spin sums. Free neutron structure is extracted using the impulse approximation and analyticity in the tagged proton momentum (pole extrapolation). Results: General expressions of the polarized tagged DIS observables in collider experiments. Analytic and numerical study of the polarized deuteron LF spectral function and nucleon momentum distributions. Practical procedures for neutron spin structure extraction from the tagged deuteron spin asymmetries. Conclusions: Spectator tagging provides new tools for precise neutron spin structure measurements. D-wave depolarization and nuclear binding effects can be eliminated through the tagged proton momentum dependence. The methods can be extended to tensor-polarized observables, spin-orbit effects, and diffractive processes.

arXiv comment52 pages, 19 figures

References in corpus (67)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Quantum Chromodynamics and Other Field Theories on the Light Cone
• Generalized Parton Distributions
• Hard Exclusive Reactions and the Structure of Hadrons
• Semi-inclusive deep inelastic scattering at small transverse momentum
• The Spin Structure of the Nucleon
• Theory of deeply virtual Compton scattering on the nucleon
• Measurements of the Proton and Deuteron Spin Structure Functions g1 and g2
• Extraction of Spin-Dependent Parton Densities and Their Uncertainties
• The theory and phenomenology of polarized deep inelastic scattering
• Precise determination of the spin structure function ${\mathbf{g}}_1$ of the proton, deuteron and neutron
• A first unbiased global determination of polarized PDFs and their uncertainties
• Precision Determination of the Neutron Spin Structure Function g1n
• Measurement of the Neutron Spin Structure Function $g_1^n$ with a Polarized ^3He Target
• The Deuteron Spin-dependent Structure Function g1d and its First Moment
• Deep Inelastic Scattering of Polarized Electrons by Polarized ${}^3$He and the Study of the Neutron Spin Structure
• The QCD Running Coupling
• Measurements of the $Q^2$-Dependence of the Proton and Neutron Spin Structure Functions g1p and g1n
• Adler Function, Bjorken Sum Rule, and the Crewther Relation to Order alpha_s^4 in a General Gauge Theory
• Electron- and neutrino-nucleus scattering in the impulse approximation regime
• Measurement of the Deuteron Spin Structure Function g_1^d(x) for 1 (GeV/c)^2 < Q^2 < 40 (GeV/c)^2
• Precision Measurement of the Neutron Spin Asymmetries and Spin-dependent Structure Functions in the Valence Quark Region
• Determination of the Bjorken Sum and Strong Coupling from Polarized Structure Functions
• Determination of Polarized PDFs from a QCD Analysis of Inclusive and Semi-inclusive Deep Inelastic Scattering Data
• Precision Measurement of the Proton and Deuteron Spin Structure Functions g2 and Asymmetries A2
• Spin Structure of the Nucleon - Status and Recent Results
• QCD Analysis of the Polarized World Data
• QCD Analysis of Polarized Deep Inelastic Scattering Data
• ERRATUM TO: Power corrections $1/Q^2$ to parton sum rules for deep inelastic scattering from polarized targets
• Iterative Monte Carlo analysis of spin-dependent parton distributions
• The Challenge of the EMC Effect: existing data and future directions
• Measurement of the Proton and Deuteron Spin Structure Functions g2 and Asymmetry A2
• Nuclear effects in Deep Inelastic Scattering of polarized electrons off polarized 3He and the neutron spin structure functions
• Measurement of the Neutron Spin Structure Function g2n and Asymmetry A2n
• Flavour Separation of Helicity Distributions from Deep Inelastic Muon-Deuteron Scattering
• QCD Sum Rule Calculation of Twist-4 Corrections to Bjorken and Ellis-Jaffe Sum Rules
• Measurement of the structure function of the nearly free neutron using spectator tagging in inelastic ${}^2$H(e, e'p)X scattering with CLAS
• High precision determination of the $Q^2$-evolution of the Bjorken Sum
• Measurement of the neutron F2 structure function via spectator tagging with CLAS
• Nucleon spin structure and pQCD frontier on the move
• Final COMPASS results on the deuteron spin-dependent structure function $g_1^{\mathrm{d}}$ and the Bjorken sum rule
• Complete analysis of spin structure function g1 of He-3
• SPIN-DEPENDENT NUCLEAR STRUCTURE FUNCTIONS: GENERAL APPROACH WITH APPLICATION TO THE DEUTERON
• DEEP INELASTIC SCATTERING FROM POLARIZED DEUTERONS
• Precision measurements of $g_1$ of the proton and the deuteron with 6 GeV electrons
• Bjorken polarized sum rule and infrared-safe QCD couplings
• Transverse target spin asymmetry in inclusive DIS with two-photon exchange
• Electromagnetic and weak current operators for interacting systems within the front-form dynamics
• Electron Scattering From High-Momentum Neutrons in Deuterium
• 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
• Angular Conditions,Relations between Breit and Light-Front Frames, and Subleading Power Corrections
• Single spin asymmetries in l p --> h X processes: a test of factorization
• Nucleon matrix elements of higher-twist operators from the instanton vacuum
• The nuclear effects in $g_{1^3\mathrm{He}}$ and the Bjorken sum rule for A=3
• Electron-deuteron deep-inelastic scattering with spectator nucleon tagging and final-state interactions at intermediate x
• Polarized Deep-Inelastic Scattering from Nuclei -- A Relativistic Approach
• Comparative study of nuclear effects in polarized electron scattering from 3He
• A Precision Measurement of the Neutron Twist-3 Matrix Element $d_2^n$: Probing Color Forces
• Neutron spin structure with polarized deuterons and spectator proton tagging at EIC
• Light-Cone Dynamics of Particles and Fields
• Adler function and Bjorken polarized sum rule: Perturbation expansions in powers of $SU(N_c)$ conformal anomaly and studies of the conformal symmetry limit
• Higher twists in polarized DIS and the size of the constituent quark
• Optimized determination of the polarized Bjorken sum rule in pQCD
• Neutron spin structure from polarized deuteron DIS with proton tagging
• Perturbative QCD and factorization of coherent pion photoproduction on the deuteron
• Tagged EMC Measurements on Light Nuclei

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• 50 Years of Quantum Chromodynamics
• Precision Studies of QCD in the Low Energy Domain of the EIC
• The Present and Future of QCD
• Transverse-momentum-dependent parton distribution functions up to twist 4 for spin-1 hadrons
• Deep-inelastic electron-deuteron scattering with spectator nucleon tagging at the electron-ion collider. Extracting free nucleon structure
• Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
• Spatial densities of momentum and forces in spin-one hadrons
• Equation-of-motion and Lorentz-invariance relations for tensor-polarized parton distribution functions of spin-1 hadrons
• Experimental Study of Tensor Structure Function of Deuteron
• Semi-inclusive deep inelastic scattering off a tensor-polarized spin-1 target
• Polarization options in inclusive DIS off tensor polarized deuteron
• Probing the gluonic structure of the deuteron with $J/\psi$ photoproduction in d+Au ultra-peripheral collisions
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