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17C (1986AJ04)

(See the Isobar Diagram for 17C)

A Q-value measurement of the 48Ca(18O, 17C)49Ti reaction leads to an atomic mass excess of 21.039 ± 20 keV (1982FI10; E(18O) = 112 MeV) for 17C, using the (1985WA02) a.m.e. values for 18O, 48Ca and 49Ti. See also (1982AJ01). 17C is then stable with respect to 16C + n by 0.73 MeV. Eβ-(max) to 17Ng.s. = 13.17 MeV. See also (1984KL06). The half-life of 17C is 202 ± 17 msec (1986CU01). An excited state of 17C is reported at Ex = 292 ± 20 keV [see (1982AJ01)], 295 ± 10 keV (1982FI10). Three closely spaced low-lying states are expected [Jπ = 5/2+, 3/2+, 1/2+] (1982CUZZ): it is not clear which is the assignment of the ground state. See also (1982AJ01), (1982OR1D, 1984HI1A) and (1983ANZQ, 1983FR1A, 1983WI1A, 1984AS1D; theor.).