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GENERAL: See also (86AJ01) and Table 14.1 [Table of Energy Levels] (in PDF or PS) here.

Complex reactions involving ¹⁴B: (86BI1A, 87SA25, 88AS1C, 88RU01, 89AS1B, 89YO02).

Pion capture and reactions: (83AS01, 84AS05).

Hypernuclei: (86ME1F, 88MA1G, 89BA92).

Other topics: (84VA06, 86AN07, 89PO1K, 90RE04).

Ground state of ¹⁴B: (87VA26, 90LO10).

Interaction cross sections at 790 MeV/A for ¹⁴B ions on Be, C and Al are reported by (88TA10) [see also for interaction and r.m.s. radii for the nucleon distribution in ¹⁴B]. See also (89SA10).

1. 14B(β-)14C

Qm = 20.64

¹⁴B has a half-life of 16.1 ± 1.2 ms (74AL11), 12.8 ± 0.8 ms (86CU01): the weighted mean is 13.8 ± 1.0 ms and we adopt it. The nature of the decay [see Table 14.2 (in PDF or PS)] fixes J^π of ¹⁴B to be 2^- (74AL11). See also (89PO1K; theor.).

2. 14C(π-, γ)14B

Qm = 118.92

A single strong transition is observed in this pion capture cross section to a state in ¹⁴B at E_x = 2.15 ± 0.17 MeV, Γ = 1.0 ± 0.5 MeV, with J^π = 2^-. The relative branching ratio of the ground state [2^-] to this second 2^- state is < 0.1. The data are also suggestive of the population of 2^- and 1^- states in the E_x = 5 - 7 MeV region (83BA36).

3. 14C(n, p)14B

Qm = -19.86

Ground-state angular distributions have been reported at E_n = 65 MeV (86FOZX, 88DRZZ; prelim.).

4. 14C(7Li,7Be)14B

Qm = -21.51

¹⁴B states with 0 < E_x < 3 MeV have been populated in this reaction at E(⁷Li) = 52 MeV: see Table 14.1 (in PDF or PS). Similarities in the relative intensities of ¹⁴B*(0, 0.74, 1.38, 1.82, 2.08) and of ¹²B*(1.67, 2.62, 3.39, 4.30, 4.52) [populated in ¹²C(⁷Li, ⁷Be)¹²B], and the similarity in the ΔE_x of these ¹²B states with the E_x of the ¹⁴B states suggest that they have the same J^π (73BA34).

5. 14C(14C, 14N)14B

Qm = -20.49

The work quoted in (86AJ01) has not been published.