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11N (1975AJ02)
(See the Isobar Diagram for 11N)
The 14N(3He, 6He)11N reaction has been
studied at E(3He) = 70 MeV (1974BE20). A 6He group is observed
which corresponds to a state in 11N with an atomic mass excess of
25.23 ± 0.10 MeV and Γ = 740 ± 100 keV. The cross section for
forming this state is 0.5 μb/sr at 10°. The observed state
is interpreted as being the Jπ = 1/2- mirror of
11Be*(0.32) because of its width; the 1/2+ mirror of
11Beg.s. would be expected to be much broader
(1974BE20). The 11N state is unbound with respect to decay
into 10C + p by 2.31 MeV. See also (1968AJ02, 1969LO1B, 1970WA1G, 1974IR04).