Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Samarium (Z=62)
  144Sm   147Sm   148Sm   149Sm   150Sm   151Sm   152Sm   153Sm   154Sm
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
144Sm 145Sm




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.092 ± 6--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
92 ± 6
1993cLinac, TOF, 6Li, Au:Sat.MHH93
92 ± 9
851978bVdG, TOF, 10B:Mag75, Au:628mb(kT=30keV)KYP78
150 ± 70
1967cVdG, TOF, 181Ta:762mbMaG67a
120 ± 55
1971eAGM71
87.70
2006eendfb7
275.9
2004ejeff31
88.25
2002ejendl33
209
2000tRaT99
165
1981tHar81
176
1976tHWF76
37.1
2002tMOST 2002Gor02
38.6
2005tMOST 2005Gor05


Original:MACS [<σ v>/vT] (mb) for kT=30 keV, based on the published cross sections except where indicated otherwise.
Renorm:MACS [<σ v>/vT] (mb) for kT=30 keV for which the reference or standard cross section was meanwhile improved.
Type: The letters and numbers in the column labelled 'type' give information on how the cross section has been obtained:
cDirectly quoted from the reference itself
bCalculated from smooth cross sections with model fit: ln(sigma) = a + a1 ln(E) + a2 ln^2(E)
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
217
155
126
110
100
92 ± 6
82
75
70
64
60
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
1.29
1.30
1.29
1.31
1.33
1.34
1.38
1.41
1.44
1.52
1.59

MACS:
Reference: MHH93
Procedure: 'e' (The Maxwellian-averaged cross sections (MACS) from kT=5 keV to 100 keV are obtained from experimental data; the relative uncertainties are similar to those quoted for the 30 keV data.)
Year: 1993

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
Comment:

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
144Gd
4.47 m
β+
145Gd
23.00 m
β+
146Gd
48.27 d
β+
147Gd
1.59 d
β+
148Gd
70.89 a
α
143Eu
2.59 m
β+
144Eu
10.20 s
β+
145Eu
5.93 d
β+
146Eu
4.61 d
β+
147Eu
24.10 d
β+
142Sm
1.21 h
β+
143Sm
8.75 m
β+
144Sm
3.07%
92 mb
145Sm
340.05 d
β+
146Sm
102.99 Ma
α
141Pm
20.90 m
β+
142Pm
40.50 s
β+
143Pm
265.05 d
β+
144Pm
362.96 d
β+
145Pm
17.70 a
β+
140Nd
3.37 d
β+
141Nd
2.49 h
β+
142Nd
27.2%
35 mb
143Nd
12.2%
245 mb
144Nd
23.8%
81.3 mb
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Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Samarium