Measurements of the Analyzing Power of Neutron-Helium-3 Elastic Scattering Between 1.60 and 5.54 MeV
dc.contributor.advisor | Tornow, Werner | |
dc.contributor.author | Esterline, James | |
dc.date.accessioned | 2012-05-25T20:22:06Z | |
dc.date.available | 2012-05-25T20:22:06Z | |
dc.date.issued | 2012 | |
dc.department | Physics | |
dc.description.abstract | An experiment measuring the analyzing power Ay(θ) for neutron–helium-3 (n-3He) elastic scattering over broad angular distributions for a range of incident neutron energies from 1.60 to 5.54 MeV has been conducted at the Triangle Universities Nuclear Laboratory. These measurements represent an effort to resolve the long-standing discrepancy between experiment and theory in low-energy three-nucleon analyzing powers, through the evaluation of analyzing powers in the four-nucleon systems, which are expected to exhibit sensitivities not accessible with fewer nucleons. The present work is described in terms of the experimental setup and data reduction techniques; a comparison of the results with rigorous calculations using both nucleon-nucleon and, as recently has become available, three-nucleon potential models is presented. While a discrepancy between calculation and measurement was observed, at low energies substantially better agreement was achieved than in related measurements of the proton–helium-3 (p-3He) analyzing power, suggesting a sizeable dependence on isospin in the four-nucleon systems. | |
dc.identifier.uri | ||
dc.subject | Nuclear physics | |
dc.subject | Physics | |
dc.subject | analyzing power | |
dc.subject | few-nucleon systems | |
dc.subject | Helium-3 | |
dc.subject | Neutron | |
dc.title | Measurements of the Analyzing Power of Neutron-Helium-3 Elastic Scattering Between 1.60 and 5.54 MeV | |
dc.type | Dissertation |
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