(See Energy Level Diagrams for 13B)
Muon and neutrino capture and reactions: (1985KO39).
Antinucleon interactions: (1988MA48).
μ = +3.17778(51) nm (1978LEZA).
Interaction cross sections at 790 MeV/A for 13B ions with Be, C, and Al are reported by (1988TA10). The interaction radius and the r.m.s. radius for the nucleon distribution in 13B have also been derived (1988TA10).
The half-life of 13B is 17.36 ± 0.16 ms: see (1981AJ01). See also (1988SA04). The branching ratios to various 13C states are shown in 13.2 (in PDF or PS): they indicate Jπ = 1/2- or 3/2- for 13Bg.s.. See also (1989PO1K, 1989SA1P, 1989WO1E; theor.).
At Ee = 195 MeV the 13B Ex region to 12 MeV has been studied by (1983MI06): they find that the photopion reaction predominantly excites M2 states at low q and M4 states at high q. Fits to the data are obtained by assuming the excitation of 13Bg.s. and 13B*(3.5, 6.4, 9.0) [the latter are clearly due to unresolved groupings of levels]. Comparisons are made with the 13C(e, e') work in the analog region in 13C (1983MI06). [For T = 3/2 states see 13.6 (in PDF or PS).] For other work on this reaction see (1986AJ01). See also reaction 40 in 13C, the "General" section and (1986SI07; theor.).
Gamma rays have been observed which are associated with the 13B ground state; an unresolved doublet at Ex ≈ 3.5 - 3.7 MeV; sharp states at Ex ≈ 6.5 and 7.6 MeV; a broad level (or unresolved levels) at ≈ 10.2 MeV (1983MA16; see for radiative capture branching ratios). The analogs of the peaks at Ex = 6.5, 7.6 and 10.2 MeV, calculated to be at 13C*(21.6, 22.7, 25.3), are attributed to a ΔL = 1, ΔS = 1, ΔT = 1 spin-isospin giant dipole resonance of 13C (1983MA16). See also the "General" section.
The 0° ground-state differential cross section has been measured at En = 198 MeV (1988JA01). At En = 65 MeV, 13B*(0, 3.5) and the region from 6 - 10 MeV have been studied (1986WAZU; prelim.). See also (1986FO1E, 1987BR32, 1989SOZY, 1989SOZW) and (1986ALZJ).
At E(7Li) = 21 MeV/A, forward angular distributions are reported to 13Bg.s. and to unresolved structures at 3.5, 4.0, 5.1, 6.3, 7.0 and 7.6 MeV, and to a broad (Γ ≈ 2.3 MeV) structure at 9.5 MeV. The latter is suggested to be due to the GDR (1990NA03) [see for possible Jπ assignments].
See (1987GO09; theor.).