Charge-exchange reaction on 12C with 217 MeV 3He particles |
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Authors: | N Willis I Brissaud L Bimbot Y Le Bornec B Tatischeff |
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Institution: | Institut de Physique Nucléaire, B.P. no. I, 91406 — Orsay, France |
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Abstract: | Differential cross sections for the (3He, t) charge-exchange reaction have been measured on a 12C target with 217 MeV 3He particles. High energy tritons were detected using a thick Ge(Li) crystal (43 mm) and a 4 mm Si(Li) detector in an E-ΔE telescope. Microscopic DWBA calculations have been carried out, using the rather well known wave functions of the 12C levels from Gillet and Vinh-Mau. The sensitivity of this reaction to the different terms of the two-body effective interaction is discussed. A comparison of the (3He, t) and (3He, 3He') reactions populating analog final states is also presented. The two-step mechanisms (3He,α)(α, t) and (3He, d)(d, t) are introduced for the first two levels 1+(g.s.) and 2+(0.969 MeV) and the results emphasize the importance of such processes at high energy. |
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Keywords: | Nuclear reactions |
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