Structure in the Mg24(O18, C14)Si28 ground-state excitation function

J. C. Peng, D. L. Hanson, J. D. Moses, O. W.B. Schult, Nelson Stein, J. W. Sunier, N. Cindro

Research output: Contribution to journalArticlepeer-review


The excitation function of the reaction Mg24(O18, C14)Si28(g.s.) has been measured at the second maximum of the angular distributions (θlab 5 °) from 39- to 65-MeV incident energies. Oscillatory structure in the excitation function is observed with peak-to-valley ratios equal to ∼1.5. The angular distributions measured near the maxima of the excitation function decrease more rapidly toward large angles than squares of Legendre polynomials, suggesting a direct reaction process to be important. Standard distorted-wave Born-approximation calculations do fit the angular distributions quite well, but fail to reproduce the structure in the excitation function.

Original languageEnglish (US)
Pages (from-to)1458-1461
Number of pages4
JournalPhysical review letters
Issue number22
StatePublished - 1979
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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