Elsevier

Nuclear Physics A

Volume 258, Issue 2, 23 February 1976, Pages 199-220
Nuclear Physics A

Two-nucleon T = 0 transfer reactions in the 0p shell

https://doi.org/10.1016/0375-9474(76)90002-6Get rights and content

Abstract

The 16O(d, α)14N, 14N(d, α)12C and 12C(d, α)10B reactions at Ed = 40MeV and the 12C(α d)114N at Eα = 55 MeV were investigated. A total of seventeen transitions are analysed in terms of one-step, zero-range DWBA calculations, using the two-particle coefficients of fractional parentage obtained from the Cohen-Kurath Op shell wave functions. For most transitions, fair agreement is obtained between experiment and calculation, possible exceptions being the transition to the Ex = 4.43 MeV, Jπ = 2+ state in 12C and to the Ex = 2.15 MeV, Jπ = 1+ state in 10B, for which the calculations predict too much L = 0 strength. Where possible, a comparison with previous (p, 3He) results is made. In 14N a state at Ex = 11.04 MeV was observed for which the values (Jπ; T) = (3+; 0) are suggested. In 12C we found, in addition to the well known T = 0 states, two relatively sharp T = 0 states at Ex = 19.50 ± 0.10 and 20.55 ± 0.10 MeV. The shape and strength of the angular distribution for the transitions to these states can be approximately accounted for by the calculations, although no one-to-one correspondence between observed and predicted levels could be established.

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