A Measurement of the Electric Form Factor of the Neutron through $\vec{d}(\vec{e},e'n)p$ at $Q^2 = 0.5$ (GeV/c)$^2$

E93026 Collaboration; et al; H. Zhu

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A Measurement of the Electric Form Factor of the Neutron through $\vec{d}(\vec{e},e'n)p$ at $Q^2 = 0.5$ (GeV/c)$^2$

E93026 Collaboration, H. Zhu, et al

Nuclear Experiment · Submitted 3 May 2001

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We find $G_E^n = 0.04632\pm0.00616 (stat.) \pm0.00341 (syst.)$ at $Q^2 = 0.495$ (GeV/c)$^2$.

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CitationE93026 Collaboration, et al, H. Zhu. "A Measurement of the Electric Form Factor of the Neutron through $\vec{d}(\vec{e},e'n)p$ at $Q^2 = 0.5$ (GeV/c)$^2$." arXiv:nucl-ex/0105001 (2001). https://pith.science/paper/2CK34XJL

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What the abstract itself states, as probabilities: claims first 0.97 · states limitation 0.10 · human participants 0.02 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.05 · mentions code or data availability 0.02.

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We report the first measurement of the neutron electric form factor $G_E^n$ via $\vec{d}(\vec{e},e'n)p$ using a solid polarized target. $G_E^n$ was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia, $^{15}$ND$_3$. The measurement was performed in Hall C at Thomas Jefferson National Accelerator Facility (TJNAF) in quasi free kinematics with the target polarization perpendicular to the momentum transfer. The electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle segmented detector. We find $G_E^n = 0.04632\pm0.00616 (stat.) \pm0.00341 (syst.)$ at $Q^2 = 0.495$ (GeV/c)$^2$.

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What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We report the first measurement of the neutron electric form factor $G_E^n$ via $\vec{d}(\vec{e},e'n)p$ using a solid polarized target.	contribution 1.00	0.97	0.52	asserted 1.00
s1	$G_E^n$ was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia, $^{15}$ND$_3$.	method 0.99	0.93	0.06	asserted 1.00
s2	The measurement was performed in Hall C at Thomas Jefferson National Accelerator Facility (TJNAF) in quasi free kinematics with the target polarization perpendicular to the momentum transfer.	method 1.00	0.92	0.02	asserted 1.00
s3	The electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle segmented detector.	method 1.00	0.84	0.02	asserted 0.99
s4	We find $G_E^n = 0.04632\pm0.00616 (stat.) \pm0.00341 (syst.)$ at $Q^2 = 0.495$ (GeV/c)$^2$.	result 1.00	0.98	0.93	asserted 1.00

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The paper

Original abstract

We report the first measurement of the neutron electric form factor $G_E^n$ via $\vec{d}(\vec{e},e'n)p$ using a solid polarized target. $G_E^n$ was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia, $^{15}$ND$_3$. The measurement was performed in Hall C at Thomas Jefferson National Accelerator Facility (TJNAF) in quasi free kinematics with the target polarization perpendicular to the momentum transfer. The electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle segmented detector. We find $G_E^n = 0.04632\pm0.00616 (stat.) \pm0.00341 (syst.)$ at $Q^2 = 0.495$ (GeV/c)$^2$.

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References

Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Proton and neutron electromagnetic form factors from lattice QCD
hep-lat 2018-12 conditional novelty 6.0 of 10

Including disconnected quark loops in a physical-point lattice QCD calculation shifts the neutron charge radius by about 15 percent and yields proton and neutron electromagnetic radii and magnetic moments with separat...
Model independent extraction of the proton charge radius from electron scattering
hep-ph 2010-08 conditional novelty 6.0 of 10

Expanding the proton form factor in a conformally mapped variable with bounded coefficients yields a charge radius of 0.870 to 0.880 fm from scattering data without assuming a functional form.
Electromagnetic form factors of the nucleon from the instanton vacuum
hep-ph 2026-05 unverdicted novelty 5.0 of 10

Nucleon EM form factors computed in instanton vacuum model with parameters fixed by saddle-point equation yield proton charge radius 0.841 fm matching muonic hydrogen and good agreement on Q2 dependence of ratios.
Factorization in quasi-free breakup reactions with two bodies left behind
nucl-th 2026-05 unverdicted novelty 5.0 of 10

In quasi-free high-energy breakup of a heavy-light bound state, the leading amplitude factors as the product of the remnant light-particle scattering amplitude, a probe-dependent dynamical function, and a real bound-s...

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12 arXiv papers cite this in 12 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 3 sentences without a confident label

Uses its data or values 8 papers

For the neutron electric form factor, we use 20 data points from [ref] .

Model independent extraction of the proton charge radius from electron scattering · Raising the isoscalar threshold: inclusion of neutron data · 1.00
Reference [ref] presents a compilation of the data from different double-polarization experiments [ref] , which measure the ratio $G_En/G_Mn$, where $G_Mn$ is the neutron magnetic form factor.

Combined parametrization of the neutron electric form factor and the $\gamma^\ast N \to \Delta(1232)$ quadrupole form factors · Data · 0.99
For $G_En$ we use the data from Mainz [ref] , NIKHEF [ref] , MIT-Bates [ref] and Jefferson Lab [ref] .

Octet baryon electromagnetic form factors in a relativistic quark model · Nucleon physical data · 0.96

Compares with it 1 paper

For comparison with experiment, for the proton form factors we use a $z$-expansion fit to experimental data from Ref. [ref] and for the neutron form factors we show experimental data from Refs. [ref] .

Proton and neutron electromagnetic form factors from lattice QCD in the continuum limit · Final results on the electric and magnetic radii and moments · 0.81

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