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GENERAL: See also Table 13.1 [Table of Energy Levels] (in PDF or PS).

Mass of ¹³B: The mass excess of ¹³B is 20.40 ± 0.05 MeV from the Q of the reaction ⁷Li(⁷Li, p)¹³B (NO57), and Wapstra's masses (WA55C) for ⁷Li and ¹H. ¹³B is then stable by 4.88 MeV to decay into ¹²B + n, by 11.00 MeV to decay into ¹⁰Be + t and by 11.3 MeV to decay into ⁹Li + α.

1. 13B(β-)13C

Qm = 13.44

The half-life of ¹³B is (35 ± 15) x 10^-3 sec (NO56B). Attempts to observe delayed neutrons from the decay of neutron-unstable states of ¹³C have been unsuccessful (HU53A, NO56B). It is pointed out by (NO57) that transitions to such states are unlikely if ¹³B has the expected J = 3/2^-. See also (SN48, SH52).

2. 7Li(7Li, p)13B	Qm = 5.97
	Q0 = 5.97 ± 0.05 (NO57).

This reaction has been observed for E(⁷Li) = 1.4 to 2.0 MeV (AL56, NO57, LI58C). At E(⁷Li) = 2 MeV, no proton groups have been observed corresponding to excited states of ¹³B below E_x = 2.9 MeV (LI58C). See also ¹⁴C.

3. 11B(t, p)13B

Qm = 0.24

Not reported.