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USNDP

10Li (1984AJ01)


(See the Isobar Diagram for 10Li)

At E(9Be) = 121 MeV, 10Li has been observed in the 9Be(9Be, 8B)10Li reaction with a differential cross section (c.m.) of ≈ 30 nb/sr at θ = 14° (lab): Q0 = -34.06 ± 0.25 MeV, and the atomic mass excess of 10Li is 33.83 ± 0.25 MeV if the group observed (Γ ≈ 1.2 ± 0.3 MeV) corresponds to the ground state. 10Lig.s. would the be unbound with respect to breakup into 9Li + n by 0.80 ± 0.25 MeV (1975WI26). However (1979AB11, 1980AB16), on the basis of the possible location of the first T = 2 state in 10Be (see reaction 2) with Jπ = 2-, suggest that (1975WI26) have observed an excited state of 10Li, with Jπ = 1+. See also (1979AJ01) and (1979BO22, 1980MA1Z, 1981AV02, 1981WA1J, 1982NG01; theor.).