Elsevier

Nuclear Physics A

Volume 385, Issue 3, 13 September 1982, Pages 505-515
Nuclear Physics A

The mass of 18C from a heavy ion double-charge-exchange reaction

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Abstract

The mass of 18C has been measured using the double-charge-exchange reaction 48Ca(18O, 18C)48Ti at an 18O energy of 112 MeV. The 18C ions were detected at the focal plane of a magnetic spectrometer. The mass excess of 18C was found to be 24.923 ± 0.030 MeV, and the first excited state was observed at an excitation energy of 1.62 ± 0.02 MeV. At the same time, an independent measurement of the mass excess of 17C was obtained from the 48Ca(18O, 17C)49Ti reaction, and the value 21.039 ± 0.020 MeV is in excellent agreement with an earlier measurement. The first excited state of 17C is at 295 ± 10 keV.

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†

On leave from the Physics Department, University of Manchester, England.

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