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Measurements at low energies of the polarization-transfer coefficient Kyy' for the reaction 3H(p,n)3He at 0 degrees

W. S. Wilburn·C. R. Gould·G. M. Hale·P. R. Huffman·C. D. Keith·N. R. Roberson·W. Tornow
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Abstract

Measurements of the transverse polarization coefficient Kyy' for the reaction 3H(p,n)3He are reported for outgoing neutron energies of 1.94, 5.21, and 5.81 MeV. This reaction is important both as a source of polarized neutrons for nuclear physics experiments, and as a test of theoretical descriptions of the nuclear four-body system. Comparison is made to previous measurements, confirming the 3H(p,n)3He reaction can be used as a polarized neutron source with the polarization known to an accuracy of approximately 5%. Comparison to R-matrix theory suggests that the sign of the 3F3 phase-shift parameter is incorrect. Changing the sign of this parameter dramatically improves the agreement between theory and experiment.

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W. S. Wilburn, C. R. Gould, G. M. Hale, P. R. Huffman, C. D. Keith, N. R. Roberson, W. Tornow. 1997-10-29. Measurements at low energies of the polarization-transfer coefficient Kyy' for the reaction 3H(p,n)3He at 0 degrees. https://doi.org/10.1007/s006010050074

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