Measurement of {Delta}{sigma}{sub T} in polarized proton scattering

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Bulletin of the American Physical Society

OSTI ID:243968

Wilburn, W S; Huffman, P R; Roberson, N R ^[1]

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1. and others

Measurements of the spin-dependent difference in total cross section, {Delta}{sigma}{sub T}, have been made for n-p scattering for incident neutron energies of 7.5, 9.5, 11.5 MeV. In this energy range, {Delta}{sigma}{sub T} is very sensitive to the {sup 3}S{sub 1}-{sup 3}D{sub 1} phase-shift mixing parameter {epsilon}{sub i} and insenstive to most other phase shifts. {epsilon}{sub i} measures the strength of the NN tensor interaction at low energies. The measurements were made using a polarized neutron beam from the {sup 2}H({bar d}.{bar n}){sup 3}He reaction and a cryogenically polarized proton target in the form of TiH{sub 2}. The present experiments extend earlier measurements to higher energies. Data will be presented and compared to various potential-model predictions. Preliminary analysis favors the Bonn NN potential models.

• DOE Contract Number: FG05-91ER40619; FG05-88ER40441
• OSTI ID: 243968
• Report Number(s): CONF-9304297--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
MEV RANGE 01-10
MEV RANGE 10-100
POLARIZED BEAMS
POLARIZED TARGETS
PROTON-NEUTRON INTERACTIONS
TOTAL CROSS SECTIONS