C. F. Perdrisat
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View article: Measurement of the EMC effect in light and heavy nuclei
Measurement of the EMC effect in light and heavy nuclei Open
Inclusive electron scattering from nuclear targets has been measured to extract the nuclear dependence of the inelastic cross section in Hall C at the Thomas Jefferson National Accelerator facility. Results are presented for 2H, 3He, 4He, …
View article: Probing the Deuteron at Very Large Internal Momenta
Probing the Deuteron at Very Large Internal Momenta Open
We measure ^{2}H(e,e^{'}p)n cross sections at 4-momentum transfers of Q^{2}=4.5±0.5 (GeV/c)^{2} over a range of neutron recoil momenta p_{r}, reaching up to ∼1.0 GeV/c. We obtain data at fixed neutron recoil angles θ_{nq}=35°, 45°, and 75°…
View article: Measurement of analysing powers for neutron scattering on CH2, CH, C and Cu target for momenta from 3.0 to 4.2 GeV/c
Measurement of analysing powers for neutron scattering on CH2, CH, C and Cu target for momenta from 3.0 to 4.2 GeV/c Open
During two beam runs in the years 2016 and 2017, the analyzing powers (Ay) for protons and neutrons scattering on CH2, CH, C and Cu targets were measured at the nucleon momentum from 3.0 to 4.2 GeV/c with the ALPOM2 setup at the Nuclotron …
View article: Measurement of the Neutral Weak Form Factors of the Proton
Measurement of the Neutral Weak Form Factors of the Proton Open
We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from the proton. The kinematic point [(Thetalab) = 12.3r and (Q2) = 0.48 (GeV/c)2] is chosen to provide sensitivity, at a level th…
View article: Nucleon Form Factor Measurements and Interpretation
Nucleon Form Factor Measurements and Interpretation Open
The data base for the form factors of the nucleon obtained from elastic ep scattering is discussed, as well as some recent developments in their calculation.
View article: The Q{sup 2}-Dependence of the Neutron Spin Structure Function g{sub 2}{sup n} at Low Q{sup 2}
The Q{sup 2}-Dependence of the Neutron Spin Structure Function g{sub 2}{sup n} at Low Q{sup 2} Open
We present the first measurement of the Q{sup 2}-dependence of the neutron spin structure function g{sub 2}{sup n} at five kinematic points covering 0.57 (GeV/c){sup 2} {le} Q{sup 2} {le} 1.34 (GeV/c){sup 2} at x {approx} 0.2. Though the n…
View article: Neutron electric form factor via recoil polarimetry
Neutron electric form factor via recoil polarimetry Open
The ratio of the electric to the magnetic form factor of the neutron, G_En/G_Mn, was measured via recoil polarimetry from the quasielastic d({pol-e},e'{pol-n)p reaction at three values of Q^2 [viz., 0.45, 1.15 and 1.47 (GeV/c)^2] in Hall C…
View article: The quasielastic 2H(e,e'p)n reaction at high recoil momenta
The quasielastic 2H(e,e'p)n reaction at high recoil momenta Open
The 2H(e,e'p)n cross section was measured in Hall A of the Thomas Jefferson National Accelerator Facility (JLab) in quasielastic kinematics (x=0.96) at a four-momentum transfer squared, Q{sup 2}=0.67 (GeV/c){sup 2}. The experiment was perf…
View article: PHYSICS WITH A FOCAL PLANE PROTON POLARIMETER FOR HALL A AT CEBAF
PHYSICS WITH A FOCAL PLANE PROTON POLARIMETER FOR HALL A AT CEBAF Open
A focal plane polarimeter intended for the CEBAF Hall A high resolution hadron spectrometer is under construction at Rutgers University and the College of William and Mary. Experiments with focal plane polarimeters are only now beginning a…
View article: High Energy Photodisintegration of the Deuteron
High Energy Photodisintegration of the Deuteron Open
A review of both the data base and current model predictions for the observables of the deuteron photodisintegration reaction, {gamma}d {yields} p{sub n} is presented. Recent cross section and polarization measurements at Jefferson Lab are…
View article: The Structure of the Nucleon: Elastic Electromagnetic Form Factors
The Structure of the Nucleon: Elastic Electromagnetic Form Factors Open
Precise proton and neutron form factor measurements at Jefferson Lab, using spin observables, have recently made a significant contribution to the unraveling of the internal structure of the nucleon. Accurate experimental measurements of t…
View article: Separated response functions in exclusive, forward π [superscript ±] electroproduction on deuterium
Separated response functions in exclusive, forward π [superscript ±] electroproduction on deuterium Open
Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q[superscript 2], and at different four-momentum transfer, t, can be used to probe QCD's transition from meso…