Publications (18)
Technical Supplement to "Polarization Transfer Observables in Elastic Electron-Proton Scattering at Q = 2.5, 5.2, 6.8, and 8.5 GeV"
A. J. R. Puckett, E. J. Brash, M. K. Jones +103
The GEp-III and GEp-2 experiments, carried out in Jefferson Lab's Hall C from 2007-2008, consisted of measurements of polarization transfer in elastic electron-proton scatterin…
A New Low Measurement of the Proton's Spin Structure Function from Longitudinal & Transverse Polarized Data
D. Ruth, R. Zielinski, C. Gu +94
The proton's spin structure has proven to be far more complicated than was originally believed, and has been the subject of a number of experimental investigations. %Early measurem…
Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to Q^2 = 8.5 GeV^2
A. J. R. Puckett, E. J. Brash, M. K. Jones +103
Among the most fundamental observables of nucleon structure, electromagnetic form factors are a crucial benchmark for modern calculations describing the strong interaction dynamics…
Search for Exotic Gluonic States in the Nucleus, A Letter of Intent to Jefferson Lab PAC 44
J. Maxwell, D. Crabb, D. Day +10
We renew our intent to submit a proposal to perform a search for a non-zero value of the unmeasured hadronic double helicity flip structure function , predicted to be se…
Proton Form Factor Ratio, from Double Spin Asymmetry
A. Liyanage, W. Armstrong, H. Kang +97
The ratio of the electric and magnetic form factor of the proton, , has been measured for elastic electron-proton scattering with polarized beam and target up to…
Measurements of Non-Singlet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for
I. Albayrak, V. Mamyan, M. E. Christy +75
We present extractions of the nucleon non-singlet moments utilizing new precision data on the deuteron structure function at large Bjorken- determined via the Rosenbluth s…
Polarization Transfer in Wide-Angle Compton Scattering and Single-Pion Photoproduction from the Proton
C. Fanelli, E. Cisbani, D. J. Hamilton +65
Wide-angle exclusive Compton scattering and single-pion photoproduction from the proton have been investigated via measurement of the polarization transfer from a circularly polari…
ePIC Early Science Report
D. Abbott, N. Abdelrahman, S. Abhijit +781
This Early Science Report from the ePIC Collaboration outlines the compelling physics program achievable during the first years of operation of the Electron-Ion Collider (EIC), pri…
Polarization components in photoproduction at photon energies up to 5.6 GeV
W. Luo, E. J. Brash, R. Gilman +107
We present new data for the polarization observables of the final state proton in the reaction. These data can be used to test predictions based on ha…
The Proton Spin Structure Function and Generalized Polarizabilities in the Strong QCD Regime
D. Ruth, R. Zielinski, C. Gu +94
The strong interaction is not well understood at low energy, or for interactions with low momentum transfer , but one of the clearest insights we have comes from Chiral Pertur…
Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
A. Accardi, P. Achenbach, D. Adhikari +441
This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a…
Search for effects beyond the Born approximation in polarization transfer observables in elastic scattering
M. Meziane, E. J. Brash, R. Gilman +108
Intensive theoretical and experimental efforts over the past decade have aimed at explaining the discrepancy between data for the proton electric to magnetic form factor ratio, $G_…
Investigation of Medium Modifications to C Structure Functions in the Resonance Region
S. Alsalmi, I. Albayrak, A. Ahmidouch +75
We present results from a high precision experimental study of the nuclear modification of the longitudinal () to transverse () structure function ratio for bound nucleon…
The neutron electric dipole moment experiment at the Spallation Neutron Source
K. K. H. Leung, M. Ahmed, R. Alarcon +90
Novel experimental techniques are required to make the next big leap in neutron electric dipole moment experimental sensitivity, both in terms of statistics and systematic error co…
The PRad Windowless Gas Flow Target
J. Pierce, J. Brock, C. Carlin +21
We report on a windowless, high-density, gas flow target at Jefferson Lab that was used to measure , the root-mean-square charge radius of the proton. To our knowledge, this i…
Revealing Color Forces with Transverse Polarized Electron Scattering
W. Armstrong, H. Kang, A. Liyanage +101
The Spin Asymmetries of the Nucleon Experiment (SANE) measured two double spin asymmetries using a polarized proton target and polarized electron beam at two beam energies, 4.7 GeV…
Optically Pumped Polarized He Ion Source Development for RHIC/EIC
A. Zelenski, G. Atoian, E. Beebe +12
The proposed polarized He acceleration in RHIC and the future Electron-Ion Collider will require about ions in the source pulse. A new technique had bee…
Polarization Transfer Observables in Elastic Electron Proton Scattering at 2.5, 5.2, 6.8, and 8.5 GeV
A. J. R. Puckett, E. J. Brash, M. K. Jones +104
The GEp-III and GEp-2 experiments were carried out in Jefferson Lab's (JLab's) Hall C from 2007-2008, to extend the knowledge of to the highest practically achiev…