Measurements of polarized neutron-polarized proton scattering: Implications for the triton binding energy

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Bulletin of the American Physical Society

DOI:https://doi.org/10.1103/PhysRevLett.71.1982· OSTI ID:391802

Wilburn, W S; Huffman, P R; Koster, J E; Roberson, N R; Tornow, W ^[1]

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1. and others

Measurements have been made of {Delta}{sigma}{sub T} for polarized neutrons incident on a polarized proton target from 3.65 to 11.60 MeV. In the energy range near 10 MeV, {Delta}{sigma}{sub T} is very sensitive to the nucleon-nucleon tensor interaction. Comparison of the data to potential-model predictions indicate that the tensor interaction is weak. A single-parameter neutron-proton phase-shift analysis has been performed and the resulting values of the {sup 3}S{sup 1}-{sup 3}D{sub 1} mixing parameter {epsilon}{sub 1} are smaller than predicted by any nucleon- nucleon potential model. A smaller tensor force at these energies will increase the calculated triton binding energy, bringing the predictions of local potential models into closer agreement with the experimentally determined value.

• Sponsoring Organization: USDOE
• DOE Contract Number: FG05-88ER40441
• OSTI ID: 391802
• Report Number(s): CONF-931044--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 9 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BINDING ENERGY
NUCLEON-NUCLEON POTENTIAL
POLARIZED BEAMS
PROTON-PROTON INTERACTIONS
SCATTERING
TRITIUM