Parity non-conservation in low energy scattering of nucleons by light nuclei: (I). Theoretical framework |
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Authors: | EM Henley L Wolfenstein |
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Institution: | Department of Physics, University of Washington, Seattle, Washington 98195, USA;Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA |
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Abstract: | The low energy scattering of nucleons by 2H, 3He and 4He are analyzed for parity non-conserving effects. The asymmetry in the total cross section of longitudinally polarized projectiles is formulated in terms of the optical theorem and a distorted wave Born approximation. For two nucleons at low energies it is only necessary to consider l = 0 to l = 1 matrix elements of the weak nucleon-nucleon potential. The asymmetries in the scattering from nuclear targets are related to the parameters of an effective weak nucleon-nucleon potential, so that they may be used to help differentiate between various proposed theoretical potentials. |
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