Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
12957La72   Lanthanum
J(π)=(3/2+)
T1/2=11.60 m
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -81.324613
(0.021351)		 -81.170 2.360
BE 1077.931 1077.777
BE/A 8.356 8.355
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.241
β3= 0.000
β4= -0.014
β6= -0.016
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay338.33
β- - decay-5037.08
β+ - decay2716.64
e-capture3738.64
1p - decay-3234.71
2p - decay-9662.46
1n - decay-10770.48
2n - decay-19571.10
2β- - decay-11550.98
β-,n-13861.96
β-,2n-25487.84
β-,d-16564.17
β-,t-21300.91
β-,α-4080.51
β-,n,α-12731.00
EC,p-2682.08
EC,2p-7581.10
EC,α3443.46
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 172.33 keV
T1/2 = 560.00 ms
IT
100%
β+ endpoint energies
γ-energies
    
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.