13O

β+-Decay Evaluated Data



Measurements
1965MC09: 13O; measured T1/2; deduced nuclear properties.
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.
2014TE01: 13O(β+p); measured decay products, Eβ, Iβ, Ep, Ip; deduced breakup of excited states in 12C.

Measured half-life for 13O(β+)13N

Recommended value (July, 2015): 8.58 ± 0.07 ms
Summary Table of Uncertainty Analysis:     Table 13O preview (PDF)  
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   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
      not seen      1.006 ± 0.006 g          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) Ep = 0.994 MeV (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: 21 May 2018