Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
12756Ba71   Barium
J(π)=1/2+
T1/2=12.70 m
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess -82.817944
(0.011357)
-82.770 2.350
BE 1064.064 1064.016
BE/A 8.378 8.378
<R2ch>1/2 = 4.8204 ± 0.0051 fm [3]
Charge-density Distribution [6]

β2= 0.253
β3= 0.000
β4= -0.024
β6= -0.019
Excited States[1]
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Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay5.85
β- - decay-4921.80
β+ - decay2400.17
e-capture3422.17
1p - decay-5756.49
2p - decay-10202.93
1n - decay-8219.34
2n - decay-19291.58
- - decay-10838.54
β-,n-15915.74
β-,2n-25201.02
β-,d-16284.64
β-,t-18677.93
β--4199.16
β-,n,α-15169.35
EC,p-961.41
EC,2p-8558.79
EC,α2700.83
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 80.32 keV
T1/2 = 1.93 s
IT
100%
β+ endpoint energies
γ-energies
 
μ (nm) Q (b) E* (keV)
+1.78(14)80
+0.0834(10)0
+0.089(12)0
-0.7227(5)80
  
[1] National Nuclear Data Center, Evaluated Nuclear Structure Data File, https://www.nndc.bnl.gov/ensdf/.
[2] M. Wang, G. Audi, A.H. Wapstra, F.G. Kondev, M. MacCormick, X. Xu, and B. Pfeiffer, Chinese Physics C, 2012, vol. 36, pp. 1603-2014.
[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.
[4] P. Möller, A.J. Sierk, T. Ichikawa, H. Sagawa, Atomic Data and Nuclear Data Tables, 2016, vol. 109-110, pp. 1-204.
[5] N.J. Stone, https://www-nds.iaea.org/publications/indc/indc-nds-0658/; Atomic Data and Nuclear Data Tables, 2016, vol. 111-112, pp. 1–28.
[6] H. de Vries, C.W. de Jager, C. de Vries, Atomic Data and Nuclear Data Tables, 1987, vol. 36, pp. 495-536.
[7] B. Pritychenko, M. Birch, B. Singh, M. Horoi, Atomic Data and Nuclear Data Tables, 2016, vol. 107, pp. 1–139; 2017, vol. 114, pp. 371–374.
[8] T. Kibedi and R.H. Spear, Atomic Data and Nuclear Data Tables, 2002, vol. 80, pp. 35-82.