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14Be (1981AJ01)
(See the Isobar Diagram for 14Be)
14Be has been observed in the 4.8 GeV proton bombardment of uranium; it is particle stable: see (1976AJ04). Its atomic mass excess is calculated to be 40.69 MeV. 14Be is then bound by 2.73 and 0.55 MeV, respectively, with respect to decay into 13Be + n and 12Be + 2n (1974TH01). [See (1980AJ01) for a discussion of the mass of 12Be]. See also (1976BE1G, 1976BE1V, 1977SE1D, 1979BO22; theor.).