D M Manley

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  • R Carr, B Filippone, E W Hughes, J S Jensen, C Jones, Yu Kolomensky +36 others
  • 1997
We propose a precision measurement of the parity nonconserving left-right asymmetry in the scattering of longitudinally polarized electrons from the atomic electrons in a hydrogen target (MMller scattering) in End Station A. The asymmetry measures the eeective pseudo-scalar weak neutral current coupling governing MMller scattering (g ee g Ve g Ae) at an(More)
The instrumentation in Hall A at the Thomas Jefferson National Accelerator Facility was designed to study electro-and photo-induced reactions at very high luminosity and good momentum and angular resolution for at least one of the reaction products. The central components of Hall A are two identical high resolution spectrometers, which allow the vertical(More)
We present a Next-to-Leading order perturbative QCD analysis of world data on the spin dependent structure functions g p 1 , g n 1 , and g d 1 , including the new experimental information on the Q 2 dependence of g n 1. Careful attention is paid to the experimental and theoretical uncertainties. The data constrain the first moments of the polarized valence(More)
We measured the cross section and response functions for the quasielastic 16O(e,e'p) reaction for missing energies 25< or =E(m)< or =120 MeV at missing momenta P(m)< or =340 MeV/c. For 25<E(m)<50 MeV and P(m) approximately 60 MeV/c, the reaction is dominated by a single 1s(1/2) proton knockout. At larger P(m), the single-particle aspects are increasingly(More)
(2008). Measurement of the invariant-mass spectrum for the two photons from the η→π0γγ decay. Measurement of the invariant-mass spectrum for the two photons from the η → π 0 γ γ decay New results on the rare, doubly radiative decay η → π 0 γ γ have been obtained from a revised analysis of the Crystal Ball experiment performed at the AGS. The analysis yields(More)
We propose to extend our previous measurements of G n E from deuterium to Q 2 = 6.88 (GeV/c) 2. Additional measurements at 5.22, 3.95, and 2.18 (GeV/c) 2 will provide continuity with our prior measurements up to Q 2 = 1.45 (GeV/c) 2 , and overlap with recent (unpublished) measurements from a polarized 3 He target. The JLab E93-038 collaboration measured G n(More)
We report observations from the (p,n) reaction on 12 C at 135 MeV. The experiment was performed with the beam-swinger neutron time-of-flight system at the Indiana University Cyclotron Facility. Neutrons were detected in large-volume plastic scintillation detectors located in three detector stations at 0 • , 24 • , and 45 • with respect to the undeflected(More)
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