13O

β+-Decay Evaluated Data

Measurements
1970ES03, 1971ESZV: 13O; measured delayed-p spectrum, T1/2; deduced log ft.
1971ESZR: 13O; measured T1/2, pγ-coin, β-delayed proton spectra. 13N deduced levels, level-width.
1982MIZW, 1983ASZZ: 13O(β+); measured β-delayed Ep, Ip; deduced T1/2.
1984MIZR: 13O(β+p); measured β-delayed Ep, Ip. 13N levels deduced relative Ip, branching ratio.
1990AS01: 13O(β+p); measured β-delayed Ip, Ep, Ip/Iβ; deduced T1/2. 13N levels deduced branching ratio.
1995TAZZ: 13O(β+); measured β-NMR; deduced quadrupole coupling constant. 13O level deduced μ, quadrupole moment. β-NMR technique
1996MA37: 13O(β+); measured β time spectra.
1996MA38: 13O(β+); measured β-NMR, polarized sources; deduced μ, spin expectation values.
1996MAZQ: 13O(β+); measured β-ray asymmetry. 13O deduced magnetic and quadrupole moments.
1996TAZY, 1997TAZW, 1999MA46, 1999SA75: 13O(β+); measured β-NQR spectrum; deduced quadrupole moment.
2005KN02: 13O(β+p); measured β-delayed Ep, Ip; deduced log ft. 13N deduced branching ratios for proton decay from excited states.
Measured half-life for 13O(β+)13N

Adopted value: 8.58 ± 0.05 ms; the weighted mean of (1965MC09, 1970ES03, 1990AS01)
Measured values: 8.7 ± 0.4 ms (1965MC09)
8.95 ± 0.20 ms (1970ES03)
8.55 ± 0.05 ms (1990AS01)
Previous Measurements

 
Decay to 13N*
(MeV)		 Jπ Ep (c.m.) (MeV) to relative intensity % of all
β-decays		 log ft
12C(0) 12C*(4.4) 12C(0) 12C*(4.4) 12C(0) 12C*(4.4) 12C*(7.7)
(1965MC09) (1970ES03) (2005KN02) (1965MC09) (1970ES03) (1990AS01) (2005KN02) (1970ES03) (1990AS01) (2005KN02) a (1970ES03) b (2005KN02) a
0 1/2-                        88.1 ± 3.4 c 89.2 ± 2.2   88.7 ± 2.0      4.10 ± 0.02 c    4.08 ± 0.02 f 4.08 ± 0.02
3.51 3/2-     observed   1.5597 ± 0.0010       100 100 100 10.7 ± 3.1   9.8 ± 2.0 9.8 4.52 ± 0.13 4.55 ± 0.09 4.55
7.38 5/2-     5.48 ± 0.05 not seen 5.445 ± 0.006     < 15  0.33 ± 0.10 0.17 ± 0.07 0.09 ± 0.04    0.40 ± 0.19 d 0.18 ± 0.09 0.24 ± 0.02 5.22 ± 0.23 5.56 ± 0.22 5.44 ± 0.13
      0.994 g   1.006 ± 0.006          1.7 ± 0.8 e 2.4 ± 0.3            
8.92 1/2- 6.93 ± 0.04   observed   7.030 ± 0.006     100 3.5 ± 0.3 4.83 ± 0.51 5.3 ± 0.4 0.54 ± 0.16 0.61 ± 0.14 0.96 ± 0.04 4.73 ± 0.14 4.66 ± 0.10 4.45 ± 0.10
      2.56 ± 0.05   2.591 ± 0.006       1.44 ± 0.25 4.5 ± 0.3
9.48 3/2- 7.55 ± 0.04   observed   7.614 ± 0.006       24 0.8 ± 0.1 0.98 ± 0.14 1.40 ± 0.13 0.13 ± 0.04 0.16 ± 0.04 0.24 ± 0.02 5.18 ± 0.14 5.09 ± 0.11 4.89 ± 0.11
      3.12 ± 0.05   3.175 ± 0.006     0.43 ± 0.15 0.61 ± 0.15 1.06 ± 0.11
10.36   5/2-     observed              0.05 ± 0.03 e 0.05 ± 0.03   0.019 ± 0.012 0.02 ± 0.01   5.8 ± 0.3 5.7+0.3-0.2  
      3.97 ± 0.05         0.13 ± 0.07    0.12 ± 0.08 e  
11.70   5/2-         9.78 ± 0.06           0.15 ± 0.04     0.015 ± 0.008     5.4 ± 0.3
13.26   ?-         11.32 ± 0.09             0.11 ± 0.09     0.011 ± 0.003     4.8 ± 0.3
15.06   3/2-         13.152 ± 0.053             0.049 ± 0.007     0.019 ± 0.004     3.12 ± 0.17
          8.714 ± 0.053            0.030 ± 0.005 h        
            7.396 ± 0.053          0.011 ± 0.002 h        
15.3     (3/2)-         13.5 ± 0.4             0.04 ± 0.03     0.004 ± 0.002     3.3 ± 0.7
 
a) Normalized to the 3.502-MeV state in (1990AS01).
b) M.J. Martin, private communication to Fay Ajzenberg-Selove, (1991AJ01).
c) The ground-state ft was taken to be 1.15 times that for 13B (1970ES03).
d) Includes a calculation relative intensity of (3.4 ± 1.4) to 12C*(4.4) from F.C. Barker's observation.
e) Calculated value form the known ratio of the elastic and inelastic widths.
f) Estimated.
g) From (1990AS01).
h) The decay branches of the IAS were fixed to values from (1991AJ01).
13B(β-)13C Evaluated Data

13N(β+)13C Evaluated Data

A = 13 Beta-Decays Diagram

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Last modified: 08 July 2009