13C 13B B- DECAY 24NDS 202410
13C H TYP=FUL$AUT=J.H. Kelley, C.G. Sheu and J. E. Purcell$
13C 2 H CIT=NDS 198, 1 (2024)$CUT=1-Aug-2024$
13C c 1962Ma19: {+13}B(|b{+-}) from {+11}B(t,p); measured |b particles,
13C 2c and |g rays. Deduced ratio of
13C 2c T{-1/2}({+13}B/{+12}B)=0.86 {I2}. This presently implies
13C 3c T{-1/2}=17.39 ms {I41}. Deduced dominant decay branches to
13C 4c {+13}C{+*}(0,3.68 MeV) with I|b|?93% and 7%, respectively; limits are
13C 5c set on other branches, including <1.5% from |b-n events.
13C c 1968Ch28: Activated a natural boron target with tritons and
13C 2c measured |b particles and delayed neutrons. Deduced
13C 3c T{-1/2}=16 ms {I1} and %|b-n=0.52 {I26}. Compared with
13C 4c {+13}O |b-p.
13C c 1969Jo21: {+13}B(|b{+-}) from {+11}B(t,p); measured |b|g-coin,
13C 2c E{-|b}, |b-n. Deduced branches to
13C 3c {+13}C{+*}(0,3.68,7.58 {I6},8.79 {I10})
13C 4c with I|b(%)=92.1 {I8}, 7.6 {I8}, 0.094 {I20} and
13C 5c 0.16 {I3}, respectively
13C c 1971Wi07: {+13}B(|b{+-}) from {+11}B(t,p); measured
13C 2c T{-1/2}=17.33 ms {I17}.
13C c 1974Al12: {+13}B(|b{+-}) from {+11}B(t,p); measured |bn-coin;
13C 2c deduced %I|b(9.90)=0.022 {I7} by normalizing to
13C 3c %I|b(8.86)=0.16 {I3} from (1969Jo21). Set
13C 4c upper limit on %I|b(9.50)<0.01. Discussed J|p values.
13C c 1988Sa04: {+13}B(|b{+-}) from {+181}Ta({+22}Ne,{+13}B);{+13}B;
13C 2c measured T{-1/2}=17.6 ms {I12}.
13C c 1991Re02,1994ReZZ, 1995ReZZ, 2008ReZZ:
13C 2c {+13}C(|b{+-}) using spallation products from p+{+232}Th.
13C 3c Ions were implanted in a Si detector and identification
13C 4c via standard techniques. %|b-n from polyethylene moderated {+3}He
13C 5c counter (zero-threshold).
13C 6c The |b-delayed neutron probability
13C 7c (P{-n}= P{-1n}+2P{-2n}+3P{-3n}+...) and half-life were deduced.
13C 8c The evaluator favors the values from
13C 9c (1994ReZZ,2008ReZZ) T{-1/2}=16.7 ms {I6} and P{-n}=0.24 {I15},
13C ac but other values based on this work are
13C bc (1991Re02) T{-1/2}=11 ms {I9} and P{-n}=0.3 {I1}.
13C c 1997So34: {+13}B(|b{+-}n); measured |b-delayed neutrons, En, In;
13C 2c deduced limit on %I|b and T{-1/2}=17.0 ms {I4}. Results are generally
13C 3c excluded due to the limited description of the method.
13C c 2002GeZT,2005GeZY: {+13}B(|b{+-}) from {+11}B(t,p); measured
13C 2c reaction excitation function from analysis of E|g=3681 keV yield.
13C 3c Deduced T{-1/2}|?17.36 ms.
13C c 2004Na38: {+13}B(|b{+-}); measured I{-|b}(|q,H,t), |b-NMR and |b-NQR
13C 2c spectra from polarized source. Deduced {+13}B quadrupole moment and |m.
13C c 2006Ge21: {+13}B(|b{+-}) from {+11}B(t,p); measured
13C 2c reaction excitation function from analysis of E|g=3681 keV yield.
13C 3c Deduced T{-1/2}|?16.59 ms {I2}; discussed observed lifetime and
13C 4c suggested (t,d) contamination gives higher lifetime.
13C c 2010Ma44: {+13}B(|b{+-}); measured E{-|b}, I{-|b}(|q) from aligned
13C 2c {+13}B; deduced alignment correlation coefficient, G-parity tensor
13C 3c coupling constant.
13C c
13C c {ITheory}:
13C c 1977Ri08: Analysis of log {Ift} values for A=10-15.
13C c 2003Fo11: {+13}B; analyzed |b-delayed neutron decay data; deduced
13C 2c ground-state configuration features.
13C c 2003Sm02: {+13}B(|b{+-}); calculated Gamow-Teller decay rates.
13C 2c Comparison with data. {+13}C calculated |m, quadrupole moments.
13C cL E,J,T$From Adopted Levels
13C cB IB$From (1969Jo21), except where noted.
13C cB IB(A)$From (1974Al12) intensities are determined relative
13C 2cB to %I|b=0.16 to {+13}C{+*}(8.86) from (1969Jo21).
13C cG RI$Deduced from I|b and adopted |g branching ratios.
13C cG E,M,MR$From Adopted Gammas
13C DB EAV,LOGFT$FROM BetaShape v2.4 (Jun-2024) 2023MO21.
13B P 0 3/2- 17.30 MS 17 13436.9 10
13B cP T$From Adopted Levels
13B cP QP$From (2021Wa16)
13C N 1 1 1
13C PN 4
13C L 0 1/2- STABLE
13C B 92.1 8 4.037 6
13C S B EAV=6433.44 49
13C cB IB$From 100%-|S(decay to excited states).
13C L 3089.451 19 1/2+ 0.98 FS 9
13C B 0.7 LE 5.6 GE
13C S B EAV=4910.19 49
13C G 3089.049 20 0.7 LE[E1]
13C L 3684.496 22 3/2- 1.13 FS 6
13C B 7.6 8 4.453 46
13C S B EAV=4617.01 49
13C G 595.22 8 0.057 7 [E1]
13C 2 G %IG=0.057 7
13C G 3684.01 6 7.6 8 M1+E2 -0.094 9
13C 2 G %IG=7.6 8
13C L 3853.796 21 5/2+ 8.6 PS 2
13C B 0.7 LE 5.5 GE
13C S B EAV=4533.61 49
13C G 169.300 4 0.009 LE[E1]
13C G 764.316 10 0.3 LE[E2]
13C G 3854 1 0.5 LE[E3+M2] +0.12 3
13C L 7547 3 5/2- 1.2 KEV 3
13C 2 L %N AP 100
13C B 0.094 20 5.33 9
13C S B EAV=2718.1 16
13C L 8866 9 1/2- 179 KEV 17
13C 2 L %N AP 100
13C B 0.16 3 4.59 8
13C S B EAV=2073.8 44
13C L 9894.50 17 3/2- 23.7 KEV 4
13C 2 L %N AP 100
13C B 0.022 7 4.95 14
13C S B EAV=1575.00 48
13C 2 B FLAG=A