
^{10}B (1984AJ01)(See Energy Level Diagrams for ^{10}B) GENERAL: See also (1979AJ01) and Table 10.5 [Table of Energy Levels] (in PDF or PS). Shell and deformed models: (1978FU13, 1979FL06, 1979KU05, 1980NI1F, 1981BO1Y, 1981DE2G, 1982BA52). Cluster and αparticle models: (1979AD1A, 1980FU1G, 1980NI1F, 1980OK1B, 1981KR1J, 1983RO1G). Special states: (1979FL06, 1980BR21, 1980FU1G, 1980NI1F, 1980OK1B, 1980RI06, 1981BA64, 1981BO1Y, 1981DE2G, 1981KU04, 1981SE06, 1982BA52, 1983GO1R). Electromagnetic tranisitions and giant resonances: (1978FU13, 1979FL06, 1979KU05, 1980KO1L, 1980NI1F, 1980RI06, 1981BA64, 1981BO1Y, 1981KN06, 1982BA52, 1982RI04, 1982VE11). Astrophysical questions: (1978BU1B, 1979MO04, 1979RA1C, 1980RE1B, 1981AU1D, 1981AU1G, 1981GU1D). Applied work: (1979AT01, 1979FL1A, 1979FO1F, 1979JU1B, 1980MU1D, 1983ST1H). Complex reactions involving ^{10}B: (1978BH03, 1978HE1C, 1979AL22, 1979BO22, 1979JA1C, 1979LO11, 1979SA27, 1979ST1D, 1979VI05, 1980GR10, 1980GU1E, 1980MI01, 1980OL1C, 1980RI06, 1980WI1L, 1981BL1G, 1981ME13, 1981MO20, 1981TA22, 1981VA1D, 1982CH1M, 1982FU04, 1982GO1E, 1982LU01, 1982LY1A, 1982MO1K, 1982VE11, 1983BE02, 1983SA06). Muon and neutrino capture and reactions: (1979BE1N, 1979DE01, 1979GO1M, 1980MU1B, 1981GI08, 1981MU1E, 1981OL01, 1982NA01). Pion and kaon capture and reactions (See also reactions 23, 24 and 47.): (1978AN20, 1978DA1A, 1978TS1A, 1979AL1J, 1979AL21, 1979BA16, 1979BE1N, 1979BO1P, 1979BO1N, 1979PI06, 1979TI1A, 1979TR1B, 1980CR03, 1980DE11, 1980LE02, 1980MA1F, 1980NA1B, 1980ST25, 1981BE63, 1981FR17, 1981GE1B, 1981GI15, 1981SI1D, 1981ST05, 1981YA1A, 1982RO04). Hypernuclei: (1978DA1A, 1978PO1A, 1978SO1A, 1980IW1A, 1981WA1J, 1982ER1E, 1982KO11, 1982RA1L). Other topics: (1980BR21, 1981AV02, 1981KU04, 1981SE06, 1982BA2G, 1982CH1M, 1982DE1N, 1982NG01, 1982VE02, 1983GO1R). Groundstate properties of ^{10}B: (1978HE1D, 1979BE1N, 1979SA27, 1980FU1G, 1981AV02, 1981BO1Y, 1981OL01, 1981SE06, 1982BA2G, 1982LO13, 1982NG01).
Q = +84.72 ± 0.56 mb: see (1978LEZA). Mass of ^{10}B: A.H. Wapstra (private communication) adopts 12050.0 ± 0.39 keV and we shall too. See also (1983CH08). ^{10}B*(0.72): μ = +0.63 ± 0.12 nm: see (1978LEZA). See also (1982VE11).
Observed resonances are displayed in Table 10.8 (in PDF or PS). See also (1981GA1A, 1981MU1F).
The excitation functions for neutrons [from threshold to E_{α} = 15.5 MeV] and for deuterons [E_{α} = 9.5 to 25 MeV; d_{0}, d_{1} over most of range] do not show resonance structure. See also ^{9}B, ^{9}Be and ^{8}Be. For reaction (a) see also (1979BA48). See (1979AJ01) for references.
Excitation functions of α_{0} and α_{1} have been reported for E_{α} ≤ 18.0 MeV and 9.5 to 12.5 MeV, respectively: see (1974AJ01). Reported anomalies are displayed in Table 10.9 (in PDF or PS). Elastic scattering and VAP measurements are reported for E_{dbar} = 15.1 to 22.7 MeV (1979EG01). Small anomalies are observed in the excitation function of the magnitude parameter (reaction (b)) corresponding to ^{10}B*(8.67, 9.65, 10.32, 11.65) (1983GO07). See, however, Table 10.5 (in PDF or PS). See also ^{6}Li, (1980SK1A) and (1979NO1C, 1979SU09, 1979SU1F, 1980FU1G, 1982LE10, 1983SH04; theor.).
Angular distributions of deuteron groups have been determined at E(^{6}Li) = 2.4 to 9.0 MeV (d_{0}, d_{1}, d_{3}) and 7.35 and 9.0 MeV (d_{4}, d_{5}). The d_{2} group is also observed but its intensity is weak: see (1974AJ01) and ^{12}C in (1980AJ01). See also (1979WA13).
Angular distributions of the t_{0} and t_{1} groups have been measured at E(^{6}Li) = 3.3 MeV and E(^{7}Li) = 3.78 to 5.95 MeV: see (1974AJ01).
Capture γrays have been observed for E(^{3}He) = 0.8 to 6.0 MeV. The γ_{0} and γ_{5} yields [to ^{10}B*(0, 4.77)] show resonances at E(^{3}He) = 1.1 and 2.2 MeV [E_{res} = 0.92 and 2.1 MeV], the γ_{1} and γ_{4} yields [to ^{10}B*(0.72, 3.59)] at 1.4 MeV and the γ_{4} yield at 3.4 MeV: see Table 10.10 (in PDF or PS). Both the 1.1 and 2.2 MeV resonances [^{10}B*(18.4, 19.3)] appear to result from swave capture; the subsequent decay is to two 3^{+} states [^{10}B*(0, 4.77)]. Therefore the most likely assignment is 2^{}, T = 1 for both [there appears to be no decay of these states via α_{2} to ^{6}Li*(3.56) which has J^{π} = 0^{+}, T = 1: see reaction 10]. The assignment for ^{10}B*(18.8) [1.4 MeV resonance] is 1^{+} or 2^{+} but there apprears to be α_{2} decay and therefore J^{π} = 2^{+}. ^{10}B*(20.2) [3.4 MeV resonance] has an isotropic angular distribution of γ_{4} and therefore J^{π} = 0^{+}, 1^{}, 2^{}. The γ_{2} group resonates at this energy which eliminates 2^{}, and 0^{+} is eliminated on the basis of the strength of the transition which is too large for E2. See (1974AJ01) for references.
The excitation curve is smooth up to E(^{3}He) = 1.8 MeV and the n_{0} yield shows resonance behavior at E(^{3}He) = 2.2 and 3.25 MeV, Γ_{lab} = 270 ± 30 and 500 ± 100 keV. No other resonances are observed up to E(^{3}He) = 5.5 MeV. See Table 10.10 (in PDF or PS) and (1974AJ01) for references.
The yield of protons has been measured for E(^{3}He) = 0.60 to 4.8 MeV: there is some indication of weak maxima at 1.1, 2.3 and 3.3 MeV. Polarization measurements are reported at E(^{3}He) = 14 MeV, and more recently at E(^{3}He) = 13.6  13.7 MeV (1981SL03) and 14.01 MeV (1983RI01). See also (1981VI1B). For the earlier references see (1974AJ01, 1979AJ01).
Yields of deuterons have been measured for E(^{3}He) = 1.0 to 2.5 MeV (d_{0}) and yields of tritons are reported for 2.0 to 4.2 MeV (t_{0}): a broad peak is reported at E(^{3}He) ≈ 3.5 MeV in the t_{0} yield. See (1979AJ01) for references. Polarization measurements are reported at E(pol. ^{3}He) = 33.3 MeV for the deuteron groups to ^{8}Be*(16.63, 17.64, 18.15) (1981BA38) and for the triton and ^{3}He groups to ^{7}Be*(0, 0.43) and ^{7}Li*(0, 0.48, 4.63) (1981BA37). See also (1979KA1G).
Excitation functions have been measured for E(^{3}He) = 1.3 to 18.0 MeV: see (1974AJ01). The α_{0} group (at 8°) shows a broad maximum at ≈ 2 MeV, a minimum at 3 MeV, followed by a steep rise which flattens off between E(^{3}He) = 4.5 and 5.5 MeV. Integrated α_{0} and α_{1} yields rise monotonically to 4 MeV and then tend to decrease. Angular distributions give evidence of the resonances at E(^{3}He) = 1.4 and 2.1 MeV seen in ^{7}Li(^{3}He, γ)^{10}B: J^{π} = 2^{+} or 1^{}, T = (1) for both [see, however, reaction 6]: Γ_{α} is small. The α_{2} yield [to ^{6}Li*(3.56), J^{π} = 0^{+}, T = 1] shows some structure at E(^{3}He) = 1.4 MeV and a broad maximum at ≈ 3.3 MeV: see Table 10.10 (in PDF or PS). Recent (unpublished) excitation studies have been reported at E(^{3}He) = 0.6 to 2.5 MeV for the α_{0}, α_{1}, α_{2} and α_{4} groups: the α_{4} group shows possible resonances at E(^{3}He) = 1.45 and 2.15 MeV. J^{π} = 2^{+}; T = 1 is suggested for the lower structure (1979LI1B, 1980LI1F). Polarization measurements are reported at E(pol. ^{3}He) = 33.3 MeV to ^{6}Li*(0, 2.19, 3.56) (1981BA38).
Angular distributions have been measured for E_{α} = 4.78 to 13.9 MeV [see (1974AJ01)] and more recently for E_{α} = 4.4 to 5.1 MeV (1981SE04). See also (1979AJ01).
Parameters of observed resonances are listed in Tables 10.11 (in PDF or PS) and 10.12 (in PDF or PS). Table 10.6 (in PDF or PS) summarizes the γtransitions from this and other reactions. For references to the discussion below, see (1974AJ01, 1979AJ01). The E_{p} = 0.32 MeV resonance (^{10}B* = 6.87 MeV) is ascribed to swave protons because of its comparitively large proton width [see ^{9}Be(p, p)] and because of the isotropy of the γradiation. The strong transition to ^{10}B*(1.74) requires E1 and hence J^{π} = 1^{}, T = 0. T = 0 is also indicated by the large deuteron width. On the other hand, the strength of E1 transitions to ^{10}B*(0.7, 2.1) indicates T = 1. The amplitudes for the T = 0 and T = 1 parts of the wave function for ^{10}B*(6.87) are 0.92 and 0.39, respectively. See (1982RI04) for the 5.16 → 1.74 decay (Table 10.6 (in PDF or PS)). The protoncapture data near E_{p} = 1 MeV appears to require at least five resonant states, at E_{p} = 938, (980), 992, 1083 and 1290 keV. The narrow E_{p} = 1083 keV level (^{10}B*=7.56 MeV) is formed by pwave protons, J^{π} = 0^{+} [see ^{9}Be(p, p), ^{9}Be(p, α)]. The isotropy of the γrays supports this assignment. The strong M1 transitions to J^{π} = 1^{+}; T = 0 levels at 0.72, 2.15 and 5.18 MeV (Table 10.12 (in PDF or PS)) indicate T = 1. The width of ^{10}B*(5.18) observed in the decay is 100 ± 10 keV. The excitation function for the groundstate radiation shows resonance at E_{p} = 992 (Γ = 80 keV) and 1290 keV (Γ = 230 keV). Elastic scattering studies indicate swave formation and J^{π} = 2^{} for both. For the lower level (E_{x} = 7.48 MeV) the intensity of the g.s. capture radiation, Γ_{γ} = 25 eV indicates E1 and T = 1. The angular distribution of γrays, 1 + 0.1sin^{2}θ, is consistent with swave formation with some dwave admixture or with some contribution from a nearby pwave resonance; possibly a J^{π} = 2^{+} level at E_{p} = 980 keV. The angular distribution of groundstate radiation at E_{p} = 1330 keV is isotropic and Γ_{γ} = 8.5 eV, supporting E1, T = 1 for this level (E_{x} = 7.75 MeV). Transitions to ^{10}B*(0.7) [γ_{1}] show resonances at E_{p} = 992, 1290 and 938 keV, Γ = 155 keV. The latter is presumably also a resonance for (p, d) and (p, α). An assignment of J^{π} = 2^{}, T = 0 is consistent with the data, although the E1 radiation then seems somewhat too strong for a ΔT = 0 transition. A resonance for capture radiation at E_{p} = 2.567 ± 0.003 (E_{x} = 8.895 MeV) has a width of 40 ± 2 keV and decays mainly via ^{10}B*(0.7) (unpublished Ph.D. thesis). It appears from the width that this resonance corresponds to that observed in ^{9}Be(p, α), J^{π} = 2^{+}, T = 1 and not to the ^{9}Be(p, n) resonance at the same energy. A further resonance is reported at E_{p} = 4.72 ± 0.01 MeV, Γ ≈ 0.5 MeV. In the range E_{p} = 4 to 18 MeV, the γ_{0} yield at 90° shows the resonance at E_{p} = 4.7 MeV (E_{x} = 10.7 MeV) and shows fluctuations suggesting states at E_{x} ≈ 14.6, 15.6 and 19.7 MeV. It is suggested that ^{10}B*(19.7) decays via E1 and therefore J^{π} = 2^{}, 3^{}, 4^{}. The other three states presumably decay by M1 and therefore J^{π} = 2^{+}, 3^{+}, 4^{+}. These fluctuations appear on a nearly constant γ_{0} yield with a 90° differential cross section ≈ 1.5 μb/sr. The average yield of γ_{1} is ≈ 2/3 of the γ_{0} yield. The broad giant resonance peak is centered at E_{x} ≈ 14.5 MeV. Fluctuations in the γ_{1} yield are reported at E_{x} ≈ 12.6, 13.3 and 14.1 MeV. These states presumably decay by M1 to ^{10}B*(0.7) [J^{π} = 1^{+}] and therefor J^{π}_{i} = 0^{+}, 1^{+}, 2^{+}. The weak γ_{2} yield (to ^{10}B*(1.74) [J^{π}; T = 0^{+}; 1]) seems to exhibit a broad peak centered near E_{x} = 15 MeV (maximum 90° differential cross section ≈ 0.5 μb/sr) and possibly some structure near E_{x} = 20 MeV. The γ_{3} yield (to ^{10}B*(2.15) [J^{π} = 1^{+}]) increases to ≈ 0.4 μb/sr at E_{x} ≈ 16 MeV and seems to remain constant beyond that energy, with some suggestion of a fluctuation corresponding to E_{x} ≈ 12.9 MeV. ^{10}B*(12.9) appears to have positive parity. Angular distributions of γ_{0}, γ_{1}, γ_{2} and γ_{3} are also reported (unpublished Ph.D. thesis). The magnetic moment of ^{10}B*(0.72) has been studied via γγ correlations from ^{10}B*(7.56): g = +0.63 ± 0.12.
Resonances in the neutron yield occur at E_{p} = 2562 ± 6, 4720 ± 10 and, possibly, at 3500 keV with Γ_{c.m.} = 84 ± 7, ≈ 500 and ≈ 700 keV. These three resonances correspond to ^{10}B*(8.891, 10.83, 9.7): see Table 10.13 (in PDF or PS) in (1974AJ01). Crosssection measurements for the (p, n) and (p, n_{0}) reactions have been obtained by (1983BY01; E_{p} = 8.15 to 15.68 MeV) [see also for a review of earlier work]. They indicate possible structure in ^{10}B near 13  14 MeV (1983BY01). The E_{p} = 2.56 MeV resonances is considerably broader than that observed at the same energy in ^{9}Be(p, α) and ^{9}Be(p, γ) and the two resonances are believed to be distinct. The shape of the resonance and the magnitude of the cross section an be accounted for with J^{π} = 3^{} or 3^{+}; the former assignment is in better accord with ^{10}Be*(7.37). For J^{π} = 3^{}, θ^{2}_{n} = 0.135, θ^{2}_{p} = 0.115 (R = 4.47 fm): see (1974AJ01). The analyzing power for n_{0} has been measured for E_{pol. p} = 2.7 to 17 MeV (1980MA33, 1981BY1B, 1981BY1C, 1981MU1D), as has P^{y} near 8.1 MeV. See also (1983BY01). The polarization transfer coefficient has been studied for E_{pol. p} = 3.9 to 15.1 MeV by (1976LI08): negative values of K^{y'}_{y}(0) are reported near E_{p} = 7 MeV in a region where several states are known to exist in ^{10}B; a spinflip mechanism may also be involved. Polarization measurements are also reported at E_{pol. p} = 135 MeV (1981MA1J) and 800 MeV (1981RI06). See also ^{9}B, (1979AJ01), (1979BA68), (1980WA1K, 1981WA1G, 1982BY1A) and (1978BA1F, 1981UL1B; applications).
The elastic scattering has been studied for E_{p} = 0.2 to 9.5 MeV [see (1974AJ01, 1979AJ01)] and (1980BO1L; E_{p} = 2.31 → 2.73 MeV; p_{0}). Below E_{p} = 0.7 MeV only swaves are present exhibiting resonance at E_{p} = 330 keV [^{10}B*(6.88)], J^{π} = 1^{}. Between E_{p} = 0.8 to 1.6 MeV polarization and crosssection measurements are well fitted by a phaseshift analysis, using only the ^{3}S_{1}, ^{5}S_{2}, ^{5}P_{1} and ^{5}P_{2} phases. Four levels satisfy the data, 1^{+} and 2^{} states at E_{x} = 7.48 MeV, a sharp 0^{+} state at E_{x} = 7.56 MeV, and a 1^{} state at 7.82 MeV: see Table 10.13 (in PDF or PS). Pronounced minima at E_{p} = 2.48 and 2.55 are observed in the polarization (p_{0}): these are ascribed to T = 1 analogs of the 3^{} and 2^{+} states ^{10}Be*(7.37, 7.52). A strong anomaly is observed at E_{p} = 6.7 MeV: see Table 10.13 (in PDF or PS). Polarization measurements have been reported at E_{p} = 0.9 to 49.8 MeV, at 138.2 and 145 MeV, and at 990 MeV [see (1974AJ01, 1979AJ01)] and at E_{pol. p} = 780 MeV (1982RA20) as well as at 1 GeV (1983BE16). See also ^{9}Be. A_{y} and K^{y}_{y} have been measured at E_{pol. p} = 225 MeV (1981RO1M; p_{0}). Total reaction cross sections have been measured at eight energies in the range E_{p} = 225 to 557 MeV (1979SC07. Inclusive cross sections have been measured by (1979FR12, 1979KO21, 1980NI09). Polarization transfer parameters have been measured at E_{p} = 800 MeV (1981RI06). Hadron multiple production has been studied by (1978AR1J). For pion and kaon production at 400 GeV see (1980NI09). For reaction (b) see ^{9}Be and (1982PE1F). See also (1981BA1R, 1981CO1D, 1981NA05, 1981WA1G, 1982BA2T, 1983SEZW), (1983LE28; astrophysics) and (1978BH1B, 1979BY01, 1979WE1C, 1981BO1C, 1981KR17, 1983BY01; theor.).
Polarization measurements (reaction (b)) are reported at E_{pol. p} = 23.06 MeV (1983RI01). See also (1979AR04, 1981BA1R, 1981SL03, 1983SEZW).
Knowledge of the cross sections of these two reactions at low energies is of importance for power generation and astrophysical considerations. Absolute cross sections for the d_{0} and α_{0} groups have been measured for E_{p} = 28 to 697 keV with ± 5  6% uncertainty. The value of S_{c.m.}(E = 0) for the combined cross sections is estimated to be 35^{+45}_{15} MeV · b. At the 0.33 MeV resonance (J^{π} = 1^{}), σ_{α0} = 360 ± 20 mb and σ_{d0} = 470 ± 30 mb. The data (including angular distributions), analyzed by an Rmatrix compound nucleus model, were fitted by assuming three states at E_{p}(c.m.) = 20 keV (J^{π} = 2^{+}; 3^{+} possible) [E_{x} = 6.57 MeV] [see, however, Table 10.9 (in PDF or PS)], 310 keV (1^{}) and 410 keV (1^{+}; 2^{+} or 3^{+} possible) (1973SI27). Measurements of excitation functions for deuterons and αparticles have been reported at a number of energies to E_{p} = 15 MeV: see (1974AJ01, 1979AJ01), Observed resonances are displayed in Table 10.14 (in PDF or PS). Polarization measurements have been made in the range E_{p} = 0.30 to 15 MeV and at 185 MeV: see (1974AJ01, 1979AJ01). See also ^{6}Li, ^{8}Be and (1979AR04, 1983SEZW).
Neutron groups are observed corresponding to the ^{10}B states listed in Table 10.15 (in PDF or PS). Angular distributions have been measured for E_{d} = 0.5 to 16 MeV: see (1974AJ01, 1979AJ01). Observed γtransitions are listed in Table 10.16 (in PDF or PS) of (1979AJ01). See Tables 10.6 (in PDF or PS) and 10.7 (in PDF or PS) here for the parameters of radiative transitions and for τ_{m}. From all the various experiments the following picture emerges: the first five states of ^{10}B have even parity [from l_{p}]. The ground state is known to have J = 3, by direct measurement, and ^{10}B*(1.74) has J^{π} = 0^{+} and is the T = 1 analog of the ^{10}C_{g.s.} [from the β^{+} decay of ^{10}C]. Then looking at the branching ratios and lifetimes of the other states, the sequence for ^{10}B*(0, 0.72, 1.74, 2.15, 3.59) is J^{π} = 3^{+}, 1^{+}, 0^{+}, 1^{+}, 2^{+} [see discussion in (1966LA04, 1966WA10)]. For polarization measurements see (1981BR1E) and ^{11}B in (1980AJ01, 1985AJ01). See also (1977BA1L, 1978PL1B) and (1978BA1F, 1979WA1F, 1982OV1A, 1982SM1F; applications).
Deuteron groups have been observed to a number of states of ^{10}B: see Table 10.15 (in PDF or PS). Angular distributions have been reported at E(^{3}He) = 10 to 25 MeV, at E(^{3}He) = 33.3 MeV [see (1974AJ01, 1979AJ01)] and at E(^{3}He) = 18 MeV (1980BL02). Spectroscopic factors obtained in the (d, n) and (^{3}He, d) reactions are not in good agreement: see the discussions in (1974KE06, 1980BL02).
Angular distributions have been studied at E_{α} = 27, 28.3 and 43 MeV [see (1979AJ01)], at E_{α} = 30.1 MeV (1983VA1H; α_{0}, α_{1}, α_{3}, α_{4}) and at 65 MeV (1980HA33). In the latter experiment DWBA analyses have been made of the distributions to ^{10}B*(0, 0.72, 1.74, 2.15, 3.59, 5.2, 5.92, 6.13, 6.56, 7.00, 7.5, 7.82, 8.9) and spectroscopic factors were derived. The distributions to ^{10}B*(4.77, 6.03) could not be fitted by either DWBA or coupledchannel analyses. In general, coupledchannels calculations give a better fit to the 65 MeV data than does DWBA (1980HA33; see also for a comparison with the (d, n) and (^{3}He, d) results). See also (1978ZE03; theor.).
At E(^{7}Li) = 34 MeV angular distributions have been obtained for the ^{6}He ions to the first four states of ^{10}B. Absolute values of the spectroscopic factors are S = 0.88, 1.38 (p_{1/2} or p_{3/2}), 1.40 and 0.46 (p_{1/2}), 0.54 (p_{3/2}) for ^{10}B*(0, 0.74, 1.74, 2.15) (FRDWBA analysis) (1977KE09).
See ^{10}Be.
Absolute measurements have been made of the ^{10}B(γ, Tn) cross section from threshold to 35 MeV with quasimonoenergetic photons; the integrated cross section is 0.54 in units of the classical dipole sum (60 NZ/A MeV · mb). The (γ, 2n) + (γ, 2np) cross section is zero, within statistics, for E_{γ} = 16 to 35 MeV (1976KN04). The giant resonance is broad with the major structure contained in two peaks at E_{x} = 20.1 ± 0.1 and 23.1 ± 0.1 MeV (σ_{max} ≈ 5.5 mb for each of the two maxima). For reaction (b) see (1974AJ01); for reactions (c) and (d) see (1959AJ76, 1966LA04). See also (1978DI1A, 1979TA1C) and (1981KE16, 1983GO1T; theor.).
Inelastic electron groups are displayed in Table 10.16 (in PDF or PS) (1979AN08). For reactions (b) and (c) see (1978SH14); for reaction (c) see (1978NA05); for reaction (d) see ^{10}Be (1982ZU03). See also (1979AJ01, 1979TI1A, 1979TR1B) and (1978BO09, 1978FU13, 1981KE15; theor.).
See (1981GE1B).
Angular distributions have been studied for E_{n} = 1.5 to 14.1 MeV: see (1974AJ01, 1979AJ01). See also ^{11}B in (1985AJ01), (1979GL1E, 1981DA1K) and (1979GL1D; theor.).
Angular distributions have been measured for E_{p} = 3.0 to 49.5 MeV [see (1974AJ01, 1979AJ01)] and at 6.0 (1977SA1B) and 800 MeV (1979MO1E). Table 10.17 (in PDF or PS) displays the states observed in this reaction. The earlier γdecay results are presented in (1979AJ01) and in Table 10.6 (in PDF or PS) here. See also ^{11}C in (1985AJ01), (1980FA07, 1981HO13) and (1979GL1D, 1980KO1V; theor.). For reaction (b) see ^{9}Be and (1974AJ01).
Angular distributions have been reported at E_{d} = 4 to 28 MeV: see (1974AJ01, 1979AJ01). Observed deuteron groups are displayed in Table 10.17 (in PDF or PS). The very low intensity of the group to ^{10}B*(1.74) and the absence of the group to ^{10}B*(5.16) is good evidence of their T = 1 character: see (1974AJ01).
Angular distributions of elastically scattered tritons have been measured at E_{t} = 1.5 to 3.3 MeV: see (1974AJ01).
Angular distributions have been measured at E(^{3}He) = 4 to 32.5 MeV [see (1974AJ01, 1979AJ01)] and at 41 MeV (1980TR02; elastic) and 46.1 MeV (1979GO07). L = 2 gives a good fot to the distributions of ^{3}He ions to ^{10}B*(0.72, 2.15, 3.59, 6.03): derived β_{L} are shown in Table 10.19 (in PDF or PS) of (1979AJ01). See also Table 10.17 (in PDF or PS) here.
Angular distributions have been measured for E_{α} = 5 to 56 MeV [see (1974AJ01, 1979AJ01)] and at E_{α} = 31.2 MeV (1981KO1U; α_{0}). ^{10}B*(1.74) is not observed. S_{α} for ^{10}B_{g.s.} = 0.16 (1976WO11). Reaction (b) has been studied at E_{α} = 24 MeV [see (1979AJ01)] and at 700 MeV (1979DO04). Using a width parameter of 141 MeV/c, (1979DO04) find that the effective number of α + d clusters for ^{10}B_{g.s.}, n_{eff} = 1.19 ± 0.23; the results are very model dependent. See also (1978ZE03, 1981LA13; theor.).
Elastic scattering angular distributions have been studied at E(^{6}Li) = 5.8 and 30 MeV and at E(^{7}Li) = 24 MeV: see (1979AJ01).
Elastic scattering angular distributions have been reported at E(^{10}B) = 20.1 and 30.0 MeV (1980BO14).
Elastic angular distributions (reaction (a)) have been studied at E(^{10}B) = 8, 13 and 21 MeV. For yields and reaction (b) see (1979AJ01). See also (1979SH22) and (1978TA1B; theor.).
Elastic angular distributions have been measured at E(^{10}B) = 18 and 100 MeV [see (1979AJ01)] for reaction (a) and at 18, 25, 32, 39 and 46 MeV for reaction (b) (1982MA20).For fusion measurements see (1979AJ01) and (1981MA18, 1982MA20). See also (1978VA1A, 1981DE13, 1982HA42; theor.).
Angular distributions are reported at E(^{10}B) = 100 MeV [see (1979AJ01)] and at E(^{14}N) = 73.9 and 93.6 MeV (1979MO14; to ^{10}B*(0, 0.72, 2.15)). For fusion crosssection measurements see (1979AJ01) and (1980PA19, 1982BE54, HO82F, 1982HO1F, 1982OR02). See also (1978TA1B) and (1981AB1A; theor.).
Elastic angular distribution (reaction (a)) have been studied at E(^{16}O) = 15.0 to 32.5 MeV and at E(^{10}B) = 100 MeV [see (1979AJ01)] as well as at E(^{10}B) = 33.7, 41.6, 49.5 MeV 1980PA01 and 65.8 MeV (1977MO1A, 1979MO14). The groundstate quadrupole moment of ^{10}B is observed to influence the scattering (1980PA01). The elastic scattering for reaction (c) has been studied at E(^{18}O) = 20, 24 and 30.5 MeV: see (1974AJ01). For fusion crosssection measurements and excitation functions see (1979GO09, 1981TH1A) for reaction (a) and (1980WI09, 1982CH07) for reaction (b). See also (1981ST1P) and (1979HU1B, 1980VA03, 1981VA1E, 1983CI08; theor.).
The elastic scattering has been investigated for E(^{19}F) = 20 and 24 MeV [see (1974AJ01)] (reaction (a)) and for E(^{10}B) = 65.9 MeV (1979MO14) (reaction (b)).
The elastic scattering for both reactions has been studied at E(^{10}B) = 87.4 MeV (1982FU09).
The elastic scattering for all three reactions has been studied at E(^{10}B) = 41.6 and ≈ 50 MeV (1979PA09; also 33.7 MeV for reaction (b)). See also (1980GL03).
The elastic scattering angular distribution has been measured for E(^{10}B) = 46.6 MeV (1980GL03).
The halflife of ^{10}C is 19.255 ± 0.53 sec (1975HA45) [and see (1974AJ01, 1979AJ01)]: the decay is to ^{10}B*(0.72, 1.74) with branching ratios of (98.53 ± 0.02)% and (1.465 ± 0.014)% and log ft = 3.047 for the transition to ^{10}B*(0.72) and 3.492 ± 0.005 for that to the analog state, ^{10}B*(1.74): see Table 10.20 (in PDF or PS) in (1979AJ01). The excitation energies of the two states are 718.32 ± 0.09 and 1740.16 ± 0.17 keV [E_{γ} = 718.29 ± 0.09 and 1021.78 ± 0.14 keV] (1969FR02). See (1979AJ01) for a further discussion of the decay. See also (1979DE15, 1979FE02, 1979KU05; theor.).
The intensities of the transitions to ^{10}B*(3.59, 5.16) [T = 0 and 1, respectively] depend on the region of the giant dipole resonances in ^{11}B from which the decay takes place: it is suggested that the lowerenergy region consists mainly of T = 1/2 states and the higherenergy region of T = 3/2 states: see ^{11}B in (1980AJ01). (1979BR1D) report observation of the 1.02 MeV line from the decay of ^{10}B*(1.74). See also ^{11}B in (1985AJ01) and (1982GO03, 1983GO1T; theor.).
Angular distributions of deuteron groups have been measured at several energies in the range E_{p} = 17.7 to 154.8 MeV: see (1979AJ01). The population of the first five states of ^{10}B and ^{10}B*(5.18(u), 6.04(u), 6.56, 7.5, 11.4 ± 0.2, 14.1 ± 0.2) is reported. For VAP measurements see (1982BU03) in ^{12}C (1985AJ01).
Angular distributions have been measured at E_{d} = 11.8 MeV (t_{0} → t_{3}; l = 1; S = 1.88, 0.94, 1.35, 1.35, respectively): see (1974AJ01).
Reported levels are displayed in Table 10.18 (in PDF or PS). Angular distributions have been measured at a number of energies between E(^{3}He) = 1.0 and 33 MeV: see (1974AJ01). For the decay of observed states see Table 10.6 (in PDF or PS). The αα angular correlations (reaction (b)) have been measured for the transitions via ^{10}B*(5.92, 6.03, 6.13, 6.56, 7.00). The results are consistent with J^{π} = 2^{+} and 4^{+} for ^{10}B*(5.92, 6.03) and require J^{π} = 3^{} for ^{10}B*(6.13). There is substantial interference between levels of opposite parity for the αparticles due to ^{10}B*(6.56, 7.00): the data are fitted by J^{π} = 3^{+} for ^{10}B*(7.00) and (3, 4)^{} for ^{10}B*(6.56) [the ^{6}Li(α, α) results then require J^{π} = 4^{}]. See however reaction 16, and see (1974AJ01) for the references.
See (1982DO08), ^{12}C in (1985AJ01) and (1981KH08; theor.).
At E_{π+} = 180 MeV and E_{π} = 220 MeV, ^{10}B*(0.72, 2.15) are populated (1981ST05). See also (1979EL12, 1982EL07).
Angular distributions of ^{3}He ions have been measured for E_{p} = 39.8, 51.9 and 185 MeV: see (1979AJ01). ^{10}B*(0, 0.72, 1.74, 2.15, 3.59, 4.77, 5.16, 5.92, 6.56, 7.50, 8.90) are populated. For reaction (b) see (1981ER10; 670 MeV) and (1979AJ01). See also (1978GO14; theor.).
Alpha groups have been observed to most of the known states of ^{10}B below E_{x} = 7.1 MeV: see Table 10.23 (in PDF or PS) in (1974AJ01). Angular distributions have been measured for E_{d} = 5.0 to 40 MeV: see (1979AJ01). Singleparticle Svalues are 1.5, 0.5, 0.1, 0.1 and 0.3 for ^{10}B*(0, 0.72, 2.15, 3.59, 4.77) (1976VA07; ZRDWBA). A study of the m_{s} = 0 yield at E_{dbar} = 14.5 MeV (θ = 0°) leads to assignments of 3^{+}, 2^{} and (3^{+}, 4^{}) for ^{10}B*(4.77, 5.11, 6.56) (1975KU15). VAP measurements are reported at E_{dbar} = 52 MeV (1982MA25): see ^{14}N in (1986AJ01). The population of the isospin forbidden group to ^{10}B*(1.74) [α_{2}] has been studied with E_{d} up to 30 MeV: see ^{14}N in (1976AJ04). See also (1981JO02, 1982BA24; theor.).
Angular distributions have been reported at E_{α} = 42 and 46 MeV: see (1979AJ01). At E_{α} = 65 MeV, an investigation of the ^{6}Li breakup shows that ^{10}B*(0, 0.72, 2.16, 3.57, 4.77, 5.2, 5.9, 6.0) are involved (1978SA26).
See (1978BE1G).
Angular distributions (reaction (a)) involving ^{10}B*(0, 0.7) have been studied at E(^{12}C) = 49.0 to 75.5 MeV (1979CL06, 1980CO10) and 93.8 MeV (1979FU04). Angular distributions (reaction (b)) involving ^{10}B*(0, 0.72, 2.15, 3.59) have been measured at E(^{14}N) = 53 MeV [see (1979AJ01)] and 78.8 MeV (1979MO14; not to ^{10}B*(3.59)).
Angular distributions have been measured for E_{p} = 5.8 to 18 MeV and 43.7 and 50.5 MeV: see (1979AJ01). Polarization measurements are reported at E_{pol. p} = 65 MeV (1980KA03; p_{0}): see ^{14}N in (1986AJ01).
See (1978GO14; theor.).
At E_{d} = 80 MeV angular distributions are reported to ^{10}B*(0, 0.72, 2.15, 3.59, 4.8, 6.04, 7.05, 8.68) (1979OE01; see for S_{α}).
At E(^{3}He) = 41 MeV groups to ^{10}B*(0, 0.72, 2.15, 3.59, 6.1) have been observed. The transition to ^{10}B*(1.74) is very weak: see (1979AJ01).
At E(^{14}N) = 76.2 MeV angular distributions involving ^{10}B*(0, 0.7) are presented by (1979MO14).
