Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
15262Sm90   Samarium
J(π)=0+
T1/2=stable
Abundance: 26.75% 16
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -74.761968
(0.001639)		 -75.480 1.200
BE 1253.097 1253.815
BE/A 8.244 8.249
<R2ch>1/2 = 5.0819 ± 0.006 fm [3]
Charge-density Distribution [6]

β2= 0.237
β3= 0.000
β4= 0.097
β6= 0.000
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay220.94
β- - decay-1874.56
β+ - decay-4530.47
e-capture-3508.47
1p - decay-8665.58
2p - decay-15660.89
1n - decay-8257.67
2n - decay-13854.10
2β- - decay-55.61
β-,n-8181.26
β-,2n-16112.71
β-,d-10847.17
β-,t-12576.64
β-,α-321.76
β-,n,α-6216.20
EC,p-11108.69
EC,2p-21039.60
EC,α-4651.54
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
  
σ (b)
Capture 206.00
Scattering 3.00
Total 209.00
 
μ (nm) Q (b) E* (keV)
-1.666(16)122
+0.80(6)122
+0.84(5)122
+1.7(2)366
+1.22(15)366
+2.4(3)707
+0.8(2)810
+0.8(2)1086
+2.8(5)1125
+4(2)1609
g(0)=+0.38(3)gsb
B(E2)↑ = 3.4611 ( 21) e2b2,    β 0  = 0.3065 (1)
2

B(E3)↑ = 0.136 ( 15) e2b3,    β 0  = 0.095 (0)
3

  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.