ADOPTED LEVELS, GAMMAS for 11B
Authors: J.H. Kelley, C.G. Sheu | Citation: Nucl. Physics A880, 88 (2012) | Cutoff date: 1-Jan-2011
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-1982.4 keV 9 | S(n)= 11454.12 keV 16 | S(p)= 11228.6 keV 5 | Q(α)= -8664.1 keV 5 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 11Be β- decay | B | 11C β+ decay |
| C | 4He(7Li,α) | D | 6Li(6Li,p) |
| E | 7Li(α,γ) RES | F | 7Li(α,n) |
| G | 7Li(α,α) | H | 7Li(6Li,dγ),6Li(6Li,GP) |
| I | 7Li(7Li,t) | J | 7Li(7Li,α7Li) |
| K | 7Li(9Be,α7Li) | L | 9Be(d,γ) |
| M | 9Be(d,p),(d,α),(d,t) | N | 9Be(t,n) |
| O | 9Be(3He,p) | P | 9Be(α,d) |
| Q | 9Be(6Li,α) | R | 9Be(11B,11B’) |
| S | 10Be(p,γ) RES | T | 10Be(p,n) |
| U | 10B(n,γ) E=TH | V | 10B(n,n) RES |
| W | 10B(n,t) RES | X | 10B(n,α) RES |
| Y | 10B(p,π+) | Z | 10B(d,p) |
| a | 10B(t,d) | b | 10B(7Li,6Li) |
| c | 10B(9Be,8Be) | d | 10B(13C,12C) |
| e | 11B(γ,γ) | f | 11B(γ,n),(γ,p),(γ,d),(γ,t) |
| g | 11B(E,E’) | h | 11B(π+,π+) |
| i | 11B(n,n’γ) | j | 11B(p,p’) |
| k | 11B(d,d’) | l | 11B(3He,3He) |
| m | 11B(α,α’) | n | 11B(6Li,6Li),(7Li,7Li) |
| o | 11B(12C,12C) | p | 12C(γ,p) |
| q | 12C(E,E’p) | r | 12C(π+,PI+P) |
| s | 12C(n,d) | t | 12C(p,2p) |
| u | 12C(p,PI+D) | v | 12C(d,3He) |
| w | 12C(t,αγ) | x | 12C(α,5Li) |
| y | 12C(6Li,7Be) | z | 12C(10Be,α7Li) |
| 0 | 12C(11B,11B),(11B,α7Li) | 1 | 13C(p,3He) |
| 2 | 13C(d,α) | 3 | 13C(11B,11B’) |
| 4 | 14C(p,α) | 5 | 14C(11B,11B) |
| 6 | 14N(n,α) | 7 | 15N(α,8Be) |
| 8 | 16O(d,7Be) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | AB DE HI L NOPQR U YZabcde ghijklmnopqrstuvwxy 012345678 | 3/2- | STABLE | |||||
| 2124.693 27 | A D HI L NOPQR YZa e g ijklmnopqrstuvwxy 012345678 | 1/2- | 0.117 eV 4 | 2124.473 27 | 100 | M1 | 0 | 3/2- |
| 4444.98 7 | A DE HI L NOPQR U YZabcde g ijklmnopqrst vw 012345678 | 5/2- | 0.55 eV 5 | 4444.03 8 | 100 | M1+E2 | 0 | 3/2- |
| 5020.30 30 | A D HI L OPQR YZab e g ijklmn pq stuvw y 0123456 8 | 3/2- | 1.97 eV 7 | 2895.30 40 5018.98 40 | 14.4 6 85.6 6 | M1+E2 M1+E2 | 2124.693 0 | 1/2- 3/2- |
| 6741.85 8 | DE H L OPQR U YZabcde jklmn pq w y 12345 78 | 7/2- | 0.030 eV 7 | 2296.63 13 6739.53 16 | 30 2 70 2 | M1 E2 | 4444.98 0 | 5/2- 3/2- |
| 6791.80 30 | A DE H L OPQR YZa e j lm opq t y 23 5 8 | 1/2+ | 0.39 eV 5 | 1771.31 30 4665.90 40 6789.81 50 | 4.0 3 28.5 11 67.5 11 | E1 E1 E1 | 5020.30 2124.693 0 | 3/2- 1/2- 3/2- |
| 7285.51 43 | A DE HI NOPQR YZa e g ij lm pq vw 3 5 8 | 5/2+ | 1.14 eV 8 | 2264.9 2840.23 7282.92 | 7.5 10 5.5 10 87.0 20 | E1+M2 E1+M2 E1+M2 | 5020.30 4444.98 0 | 3/2- 5/2- 3/2- |
| 7977.84 42 | A DE H O QR YZ e g ij l n pq vw 3 5 | 3/2+ | 1.15 eV 15 | 692.31 10 5851.47 42 7974.73 | 0.85 4 53.2 12 46.2 11 | M1 E1 E1 | 7285.51 2124.693 0 | 5/2+ 1/2- 3/2- |
| 8560.1 17 | D HI NO QR YZ e g ijklmn pq w 2345 | (3/2-) | 1.00 eV 9 | 3539.38 4114.6 6433.6 8556.7 | 9 1 5 1 30 2 56 2 | M1 M1 M1 M1 | 5020.30 4444.98 2124.693 0 | 3/2- 5/2- 1/2- 3/2- |
| 8920.47 11 | DE H NO Q U YZ bc e g ijkl n w y 12 4 | 5/2- | 4.374 eV 23 % IT = 99.8 % α = 0.14 | 4474.5 3 8916.67 16 | 4.5 5 95 1 | M1+E2 M1+E2 | 4444.98 0 | 5/2- 3/2- |
| 9183.5 10 | DE J O Q YZ bc f j l 0 6 | 7/2+ | 1.8 eV +15-11 % IT = 9.4 % α = 91.6 | 2441.8 4739.0 9180.9 | 12.5 11 86.6 23 0.9 3 | E1 E1 M2 | 6741.85 4444.98 0 | 7/2- 5/2- 3/2- |
| 9271.7 10 | DE K O Q YZ g j l z0 6 | 5/2+ | ≈ 4 keV % IT ≈ 0.03 % α ≈ 99.97 | 2529 4826 9269 | 11.9 6 69.7 14 18.4 9 | 6741.85 4444.98 0 | 7/2- 5/2- 3/2- | |
| 9820 25 | q | (1/2+) | ||||||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 9873 4 | A G O w 6 | 3/2+ | 109 keV 14 % α > 0 | |||||
| 10262 8 | C E G K O l z0 6 | 3/2- | 163 keV 22 % IT ≥ 10.5 % α ≤ 89.5 | |||||
| 10330 8 | C E G J O Z z 4 | 5/2- | 112 keV 10 % α ≈ 100 % IT ≥ 8.9×10-3 | |||||
| 10602 4 | C E G K O X g l 0 6 | 7/2+ | 91 keV 20 % IT ≈ 2×10-4 % α ≈ 100 | |||||
| 10960 50 | G 6 | 5/2- | ≈ 4.5 MeV % α > 0 | |||||
| 11272 14 | C G K O g l 6 | 9/2+ | 110 keV 20 % α ≈ 100 % IT > 0 | |||||
| 11450 17 | G J O Q | 93 keV 17 % α > 0 | ||||||
| 11600 20 | FG O X j 4 | 5/2+ | 180 keV 20 % n < 100 % α < 100 | |||||
| 11893 13 | FG K O X | 5/2- | 194 keV 6 % n < 100 % α < 100 | |||||
| 12.04E+3 13 | G X | 7/2+ | ≈ 1 MeV % n < 100 % α < 100 | |||||
| 12554 13 | G JK O Q ST f l | 1/2+,(3/2+) | 205 keV 20 % IT ≥ 6×10-3 % p < 100 % α < 100 | |||||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 12917 11 | G K O ST j 1 4 | 1/2- | 230 keV 20 % IT ≥ 1.3×10-2 % p < 100 % α < 100 | |||||
| 13137 40 | C F JK O VWX | 9/2- | 426 keV 40 % 3H > 0 % n < 100 % α < 100 | |||||
| 13160 | Q V X | 5/2+,7/2+ | 363 keV % n = ? % α = ? | |||||
| 14040 80 | FG K V X | 11/2+ | 0.5 MeV 2 % n = ? % α = ? | |||||
| 14340 20 | K OP S l | 5/2+ | 253 keV 19 % IT ≥ 6.3×10-3 % p < 100 | |||||
| 14563 11 | F J OP VW l 4 | ≤ 30 keV % n = ? % 3H = ? % α = ? | ||||||
| 15290 25 | S V X j 4 | (3/2,5/2,7/2)+ | 282 keV 15 % IT = ? % n = ? % p = ? % α = ? | |||||
| 16432 10 | LM O j 4 | ≤ 30 keV % p = ? % D = ? % α = ? | ||||||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 17310 | M WX | ≈ 1 MeV % n = ? % D = ? % 3H = ? % α = ? | ||||||
| 17500 30 | F KLM O | 116 keV 25 % IT = ? % n = ? % p = ? % D = ? % α = ? | ||||||
| 18.00E3 10 | O | 0.87 MeV 10 | ||||||
| 18370 50 | L | (1/2,3/2,5/2)+ | 260 keV 80 % IT = ? % D = ? | |||||
| 19125 26 | O 4 | + | 115 keV 25 | |||||
| 19700 | L T | (1/2+) | % IT = ? % D = ? | |||||
| 21270 50 | O | 300 keV 30 | ||||||
| 23700 | L | (1/2,3/2,5/2)+ | % IT = ? % D = ? | |||||
| 26500 | f | % IT = ? % n = ? | ||||||
E(γ): From level energy difference; recoil correction applied except where noted.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Additional Data |
| 2124.693 | 1/2- | 0.117 eV 4 | 2124.473 27 | M1 | B(M1)(W.u.)=0.58 2 | |
| 4444.98 | 5/2- | 0.55 eV 5 | 4444.03 8 | M1+E2 | +0.158 +25-21 | B(E2)(W.u.)=6.1 22, B(M1)(W.u.)=0.29 3 |
| 5020.30 | 3/2- | 1.97 eV 7 | 2895.30 40 | M1+E2 | +0.19 +10-17 | B(E2)(W.u.)=40 +80-9, B(M1)(W.u.)=0.54 3 |
| 3/2- | 1.97 eV 7 | 5018.98 40 | M1+E2 | -.036 13 | B(E2)(W.u.)=0.57 +49-35, B(M1)(W.u.)=0.63 2 | |
| 6741.85 | 7/2- | 0.030 eV 7 | 2296.63 13 | M1 | B(M1)(W.u.)=3.5×10-2 8 | |
| 7/2- | 0.030 eV 7 | 6739.53 16 | E2 | B(E2)(W.u.)=1.26 30 | ||
| 6791.80 | 1/2+ | 0.39 eV 5 | 1771.31 30 | E1 | B(E1)(W.u.)=8.3E-3 12 | |
| 1/2+ | 0.39 eV 5 | 4665.90 40 | E1 | B(E1)(W.u.)=3.25E-3 43 | ||
| 1/2+ | 0.39 eV 5 | 6789.81 50 | E1 | B(E1)(W.u.)=2.5E-3 3 | ||
| 7285.51 | 5/2+ | 1.14 eV 8 | 2264.9 | E1+M2 | +0.028 +73-75 | B(E1)(W.u.)=2.2E-2 3, B(M2)(W.u.)≤190 |
| 5/2+ | 1.14 eV 8 | 2840.23 | E1+M2 | -.08 +16-12 | B(E1)(W.u.)=8.1E-3 16, B(M2)(W.u.)≤180 | |
| 5/2+ | 1.14 eV 8 | 7282.92 | E1+M2 | +.0001 +22-21 | B(E1)(W.u.)=7.6E-3 6, B(M2)(W.u.)≤33 | |
| 7977.84 | 3/2+ | 1.15 eV 15 | 692.31 10 | M1 | B(M1)(W.u.)=1.4 2 | |
| 3/2+ | 1.15 eV 15 | 5851.47 42 | E1 | B(E1)(W.u.)=9.1E-3 12 | ||
| 3/2+ | 1.15 eV 15 | 7974.73 | E1 | B(E1)(W.u.)=3.1E-3 4 | ||
| 8560.1 | (3/2-) | 1.00 eV 9 | 3539.38 | M1 | B(M1)(W.u.)=9.7×10-2 14 | |
| (3/2-) | 1.00 eV 9 | 4114.6 | M1 | B(M1)(W.u.)=3.4×10-2 8 | ||
| (3/2-) | 1.00 eV 9 | 6433.6 | M1 | B(M1)(W.u.)=5.4×10-2 5 | ||
| (3/2-) | 1.00 eV 9 | 8556.7 | M1 | B(M1)(W.u.)=4.3×10-2 4 | ||
| 8920.47 | 5/2- | 4.374 eV 23 % IT = 99.8 % α = 0.14 | 4474.5 3 | M1+E2 | -0.061 +25-22 | B(E2)(W.u.)=0.34 27, B(M1)(W.u.)=0.10 1 |
| 5/2- | 4.374 eV 23 % IT = 99.8 % α = 0.14 | 8916.67 16 | M1+E2 | 0.000 14 | B(E2)(W.u.)<0.01, B(M1)(W.u.)=0.28 3 | |
| 9183.5 | 7/2+ | 1.8 eV +15-11 % IT = 9.4 % α = 91.6 | 2441.8 | E1 | B(E1)(W.u.)=4.3E-3 16 | |
| 7/2+ | 1.8 eV +15-11 % IT = 9.4 % α = 91.6 | 4739.0 | E1 | B(E1)(W.u.)=4.1E-3 14 | ||
| 7/2+ | 1.8 eV +15-11 % IT = 9.4 % α = 91.6 | 9180.9 | M2 | B(M2)(W.u.)=0.32 15 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 18.00E3 | 0.87 MeV 10 | T=3/2 Decay mode not specified. |
| E(level) | E(gamma) | Comments |