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Now showing items 11-20 of 27
The Strange Quark Contribution to the Proton’s Magnetic Moment
(2004-03)
We report a new determination of the strange quark contribution to the proton’s magnetic form factor at a four-momentum transfer Q2 = 0.1(GeV/c)2 from parity-violating e-p elastic scattering. The result uses a revised ...
Measurement of Tensor Polarization in Elastic Electron-Deuteron Scattering at Large Momentum Transfer
(American Physical Society, 2000-05-29)
Tensor polarization observables ( t20, t21, and t22) have been measured in elastic electron-deuteron scattering for six values of momentum transfer between 0.66 and 1.7(GeV/c)2. The experiment was performed at the Jefferson ...
Precise Measurement of the Deuteron Elastic Structure Function A(Q2)
(American Physical Society, 1999-02-15)
The A(Q2) structure function in elastic electron-deuteron scattering was measured at six momentum transfers Q2 between 0.66 and 1.80(GeV/c)2 in Hall C at Jefferson Laboratory. The scattered electrons and recoil deuterons ...
Parity-violating Electron Deuteron Scattering and the Proton’s Neutral Weak Axial Vector Form Factor
(2004-03)
We report on a new measurement of the parity-violating asymmetry in quasielastic electron scat- tering from the deuteron at backward angles at Q2 = 0.038 (GeV/c)2. This quantity provides a de- termination of the neutral ...
Longitudinal and Transverse Cross Sections in the 1H(e,e′K+)Λ Reaction
(American Physical Society, 1998-08-31)
The 1H(e,e′K+)Λ reaction was studied as a function of the squared four-momentum transfer, Q2, and the virtual photon polarization, ɛ. For each of four Q2 settings, 0.52, 0.75, 1.00, and 2.00 (GeV/c)2, the longitudinal and ...
Measurement of the vector analyzing power in elastic electron-proton scattering as a probe of double photon exchange amplitudes
(2001-05)
We report the first measurement of the vector analyzing power in inclusive transversely polarized elastic electron-proton scattering at Q2 = 0.1 (GeV/c)2 and large scattering angles. This quantity should vanish in the ...
Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment
(2010-01)
We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 ≤ Q2 ≤ 1.0 GeV2. These asymmetries, arising from interference of the electromagnetic and neutral ...
Measurements of Deuteron Photodisintegration up to 4.0 GeV
(American Physical Society, 1998-11-23)
The first measurements of the differential cross section for the d(γ,p)n reaction up to 4.0 GeV were performed at the Continuous Electron Beam Accelerator Facility (CEBAF) at Thomas Jefferson Laboratory. We report the cross ...
Separation of the Longitudinal and Transverse Cross Sections in the p(e, e′K+)Λ and p(e, e′K+)Σ0 Reactions
(2003-05)
We report measurements of cross sections for the reaction p(e,e′K+)Y, for both the Λ and Σ0 hyperon states, at an invariant mass of W =1.84 GeV and four-momentum transfers 0.5 < Q2 < 2 (GeV/c)2. Data were taken for three ...
Longitudinal Electroproduction of Charged Pions from 1H, 2H, and 3He
(American Physical Society, 2001-11-12)
Separated longitudinal and transverse cross sections for charged pion electroproduction from 1H, 2H, and 3He were measured at Q2 = 0.4(GeV/c)2 for two values of the invariant mass, W = 1.15GeV and W = 1.60GeV, in a search ...