- A energy spectrum showing the position of the quasifree peak. The spectrum was taken at and MeV. The cutoff at 100 MeV is an artifact of the experiment.
- Ratio of IVSL to IVST response functions for
at q = 1.75
and = 500 MeV.
The dashed
line shows the Alberico
*et al.*calculations [AEM82] at full nuclear density; the dotted line, at half nuclear density. [Car84] - Ratio of IVSL to IVST responses for at 494 MeV. The dashed lines show results from full RPA + DWIA calculations. [Tad94].
- The momentum transfer dependence of the residual particle-hole interaction due to and meson exchange. The dashed line shows the dependence and the dotted line shows the dependence of the interaction. [Pro91]
- The meson mass as a function of density ; based on QCD sum rule calculations. Functional form is , where . The deviation from linearity is the result of an uncertainty in the calculation [HaL92].
- Scattering kinematics in the center-of-mass and laboratory reference frames including the relativistic effect on the spin rotation explicitly [IcK92].
- Schematic of the IUCF accelerator facility showing the major features: 1) HIPIOS, 2) Injector Cyclotron, 3) Main-Stage Cyclotron, 4) High Energy Beamline, 5) Swinger Target Area, 6) Spin Precession Magnets.
- Schematic of the IUCF high-energy beamline polarimeter [Wel92].
- Log plot of the proton monitor signal versus time showing the pulse selection of the proton beam. Pulse selection efficiency is approximately 95%.
- Schematic layout of the swinger and spin precession areas near the facility target.
- Schematic view of the proton path through the beam swinger [Hua91].
- Picture of the INPOL detector from the downstream side.
- A schematic view of the INPOL neutron time-of-flight polarimeter. The charged particle veto paddles are not shown.
- A side view of the INPOL Neutron Polarimeter.
- Illustration of a cosmic event in the NA0 plane (third plane). A hit in all 10 cells is required to define a COSMIC event.
- Front-end electronics for a single neutron cell (CFD is a constant fraction discriminator).
- The KSU ``'' polarimeter: a) Isometric view, b) Side view [Wat94].
- Calculated figure-of-merit for n-p elastic scattering at MeV. Maximum FOM is at [Wat94].
- Sample pulse height spectrum from cell NC02 (third plane, third cell). The dotted line at 21 MeV represents the energy of a minimum ionizing particle would deposit when traversing the cell.
- Sample position spectra for all the cells in plan NC1 overlayed. The center of the cell is defined as x = 0.
- Time difference spectrum between the calculated and actual times of a COSMIC event in a cell relative to the first cell (i.e. NA00). Note: The first cell gives a delta function because the estimated time of a signal is taken with respect to the hit in the first plane. Narrow distributions around ns indicate the offsets are set correctly.
- Time difference spectrum between the calculated and actual time for a PP event in the four different neutron planes relative to the first plane. Note: The first plane gives a delta function because the estimated time of a signal is taken with respect to the hit in the first plane.
- Overlay of the time-of-flight spectra of the gamma rays to each neutron detector plane. TOF determined relative to the corrected RF signal.
- Raw time-of-flight spectrum for the at a scattering angle of . The gamma peak, caused by pion production and decay in the target, is labelled.
- Illustration of the sectors in the plane used for categorizing the direction of neutron scattering.
- Effective analyzing power of an old IUCF neutron polarimeter. The square data points are values measured using neutrons from the IAS reaction. The crosses are the results of calculations based on free n-p scattering. The asterisks are the calculated values reduced by a factor of 0.85 [Tad85].
- Sample spectrum. The ground state is the most prominent feature. The smaller peaks at lower neutron energy are the result of beam contamination of the type discussed in section 4.1.3. The peak at the higher neutron energy than the ground state is the result of contamination in the target.
- Raw azimuthal distribution of double-scattering events in the polarimeter. is defined as a horizontal scatter to the left. The spikes are the result of finite size of the detector cells.
- Difference between the distributions in the state and the state for a single sample run. The dotted line is the actual difference in the data and the solid line is a smooth spline fit to that difference.
- Raw histogram of the polar scattering angle, , distribution in the polarimeter. The spikes are the result of the limited position resolution of the detector cells.
- Calculated values for the Analyzing Power of the reaction [Arn96].
- Full angular distribution of the difference between (+) and (-) beam state. is shown in the angular direction and in the radial direction. Relative height indicates the event count.
- Raw histogram of the pulse height distribution of hits in the analyzer planes of the polarimeter. The pulse height is proportional to the energy deposited in those planes.
- Polar scattering angle, , versus the analyzer pulse height. The branch labelled (A) are primarily the events while those in the box marked (B) are events, cosmic ray events, and others that deposit very little energy.
- Velocity ratio histogram. The dashed line represents where the observed interplane velocity equals the expected velocity.
- The results of a search for the best gate on polar scattering angle, . is the lower gate, and is the upper gate. The top plot shows the effective analyzing power, , and the lower plot shows figure-of-merit (FOM).
- energy spectrum from the reaction at . The (4.15 MeV) state is labelled.
- Overlay of the , and spectra at . The deuterium spectra was obtained by a weighted subtraction of the carbon from the .
- Spin-observable results from the and reactions at for an polarized proton beam with MeV. The excitation spectra are shown at the top. The dashed line show the results of Faddeev calculations of the spin-observables for the deuterium reaction. The vertical dotted line indicate the energy loss for free np scattering.
- Spin-observable results from the and reactions at for an polarized proton beam with MeV. The excitation spectra are shown at the top. The dashed line show the results of Faddeev calculations of the spin-observables for the deuterium reaction. The vertical dotted line indicate the energy loss for free np scattering.
- Spin-observable results from the and reactions at for an polarized proton beam with MeV. The excitation spectra are shown at the top. The dashed line show the results of Faddeev calculations of the spin-observables for the deuterium reaction. The vertical dotted line indicate the energy loss for free np scattering.
- (spin 0) and (spin transverse, ) spin observables as a function of energy loss at . Results from both deuterium and carbon are shown. The short-dashed line are the results of Faddeev calculations of the deuterium spin observables. The long-dashed line shows the free np scattering results based on the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- (spin longitudinal, ) and (spin transverse, ) spin observables as a function of energy loss at . Results from both deuterium and carbon are shown. The short-dashed line are the results of Faddeev calculations of the deuterium spin observables. The long-dashed line shows the free np scattering results based on the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- (spin 0) and (spin transverse, ) spin observables as a function of energy loss at . Results from both deuterium and carbon are shown. The short-dashed line are the results of Faddeev calculations of the deuterium spin observables. The long-dashed line are the free np scattering results for the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- (spin longitudinal, ) and (spin transverse, ) spin observables as a function of energy loss at . Results from both deuterium and carbon are shown. The short-dashed line are the results of Faddeev calculations of the deuterium spin observables. The long-dashed line are the free np scattering results for the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- (spin 0) and (spin transverse, ) spin observables as a function of energy loss at . Results from both deuterium and carbon are shown. The short-dashed line shows the results of Faddeev calculations of the deuterium spin observables. The long-dashed line shows the free np scattering results based on the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- (spin longitudinal, ) and (spin transverse, ) spin observables as a function of energy loss at . Results from both deuterium and carbon are shown. The short-dashed line shows the results of Faddeev calculations of the deuterium spin observables. The long-dashed line shows the free np scattering results based on the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- versus energy loss for both deuterium and carbon at . The short-dashed line are the results from the Faddeev calculations and the long-dashed line is the free scattering result from the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- versus energy loss for both deuterium and carbon at . The short-dashed line are the results from the Faddeev calculations and the long-dashed line is the free scattering result from the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- Response function ratio versus energy loss showing both the deuterium and carbon data at . The dashed line indicates the results of Faddeev calculations. Also shown are the results from [Pan94] at (double line) and (thick solid line).
- Response function ratio versus energy loss showing both the deuterium and carbon data at . The dashed line indicates the results of Faddeev calculations. Also shown are the results from [Pan94] at (double line) and (thick solid line). The data at high energy loss have all been binned together to improve statistics.
- Response function ratio versus energy loss showing both the deuterium and carbon data at . The dashed line indicates the results of Faddeev calculations. Also shown are the results from [Pan94] at (double line) and (thick solid line). The data at high energy loss have all been binned together to improve statistics.
- versus energy loss for both deuterium and carbon at . The short-dashed line are the results from the Faddeev calculations and the long-dashed line is the free scattering result from the Argonne potential. The vertical dotted line indicates the energy loss for free np scattering.
- Response function ratio versus energy loss showing both the deuterium and carbon data at . The dashed line indicates the results of Faddeev calculations. Also shown are the results from [Pan94] at (double line) and (thick solid line).
- A comparison of as a function of energy loss between two different experiments. , data are shown in open squares, and , data (from LAMPF) are shown with closed squares.

Tue Apr 1 08:52:10 EST 1997