A study of the mechanism of the reaction {sup 19}F({alpha},t){sup 20}Ne at E{sub {alpha}} = 30.3 MeV

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Physics of Atomic Nuclei

OSTI ID:88741

Ignatenko, A V; Lebedev, V M; Orlova, N V; Spasskii, A V ^[1]

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1. Moscow State Univ. (Russian Federation)

The double differential cross sections for the reaction {sup 19}F({alpha},t{gamma}){sup 20}Ne at E{sub {alpha}} = 30.3 MeV are measured for 14 angles of triton emission from 20 to 150{degrees}. All even spin-tensor components of the density matrix of the state 2{sup +} (1.63 MeV) and a considerable number of the components for the state 4{sup +} (4.25 MeV) of the final nucleus are reconstructed without using any model. The angular dependences of the differential cross section for this reaction [accompanied by the excitation of the states 0{sup +}, 2{sup +} (1.63 MeV), and 4{sup +} (4.25 MeV) of the {sup 20}Ne nucleus] and the excitation function for two triton-emission angles (35 and 108{degrees}) are measured in the energy range 24.3-30.3 MeV. The angular dependence of the population of magnetic substates of the state 2{sup +} (1.63 MeV) of the {sup 20}Ne nucleus is presented. The experimental angular dependences are compared with the results of calculations that take nucleon stripping into account by the method of coupled channels and with the results of calculations based on the assumption that the reaction mechanism involves the formation of a compound nucleus. 17 refs., 5 figs., 1 tab.

• OSTI ID: 88741
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 2 Vol. 58; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALPHA REACTIONS
DIFFERENTIAL CROSS SECTIONS
FLUORINE 19 TARGET
MEV RANGE 10-100
NEON 20
TRITONS