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11N (85AJ01)(See the Isobar Diagram for 11N)
The 14N(3He, 6He)11N reaction
has been studied at E(3He) = 70 MeV. 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 (BE74B). The 11N state
is unbound with respect to decay into 10C + p by 2.24 MeV. See also
(80AJ01) and (WA81D, AW82, KA82T, NG82, AN83D; theor.).
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