Elastic Scattering of Polarized Protons on Helium Three at 800 MeV.
Elastic Scattering of Polarized Protons on Helium Three at 800 MeV.

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Published: 1985

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A set of spin dependent parameters and cross sections has been measured for polarized p-3He elastic scattering over the range of q .7 to 4.2 fm−1. The experiment was done at the Los Alamos Meson Physics Facility (LAMPF) using the High Resolution Spectrometer (HRS) with a polarized proton beam at .8 GeV. The focal plane polarimeter of the HRS was used to determine the spin direction of the scattered proton. Since 3He is one of the simplest nuclei, polarized p-3He scattering provides a very sensitive test of multiple scattering theories. The theoretical analysis was done by using two different wave functions for 3He as input to the multiple scattering theory. The theoretical calculations and experimental data together will give us useful information about nucleon-nucleon amplitudes and also help us to obtain a better understanding of the scattering process. 68 refs., 55 figs., 9 tabs.

Elastic Scattering of Polarized Protons on Deuterium at 800 MeV.
Elastic Scattering of Polarized Protons on Deuterium at 800 MeV.

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Published: 1984

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A specific set of spin transfer coefficients has been measured for proton-deuteron elastic scattering at 800 MeV using an unpolarized liquid deuterium target. The experiment was done using the High Resolution Spectrometer (HRS) at the Los Alamos Meson Physics Facility (LAMPF) with a polarized proton beam. The scattered proton spin direction was determined using the Focal Plane Polarimeter (FPP) of the HRS, which employs a carbon analyzer. Some of the spin dependent parameters measured in this experiment are of considerable interest because they provide selective information about the nucleon-nucleon (NN) amplitude. Since the deuteron is the simplest bound nucleus, pd elastic scattering is particularly well suited for testing multiple scattering theories. These measurements will also be used to eventually determine the full pd collision matrix, which contains all possible information about the scattering process. In addition, the experimental setup is described for a polarized proton-polarized deuterium target spin transfer experiment also done at the HRS at 800 MeV incident proton energy. 71 references.