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)
154Sm 155Sm




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.2206 ± 9--
0.0206 ± 12--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: January 30th, 2006
List of all available values
originalrenorm.yeartypeCommentRef
206 ± 9
2001cVdG, Act., 1/v(kT), Au:RaK88BSA01
206 ± 12
1995cVdG, Act., 1/v(kT), Au:RaK88Sto93
291 ± 19
2701978bVdG, TOF, 10B:Mag75, Au:628mb(kT=30keV)KYP78
325 ± 60
1967cVdG, TOF, 181Ta:762mbMaG67a
297
1997eMug97
215
1979eIWY79
380 ± 60
1971eAGM71
279.7
2006eendfb7
227.1
2004ejeff31
253.6
2002ejendl33
219
2000tRaT99
521
1981tHar81
219
1976tHWF76
276
2002tMOST 2002Gor02
238
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
561
395
315
265
232
206 ± 12
171
148
131
109
96
SEF1.001.001.021.051.091.131.201.271.341.461.57
Rate
3.33
3.32
3.29
3.30
3.35
3.37
3.45
3.53
3.60
3.77
3.99

MACS:
Reference: KYP78,Sto93
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: 1995

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
154Gd
2.18
1028 mb
155Gd
14.8
2648 mb
156Gd
20.47
615 mb
157Gd
15.65
1369 mb
158Gd
24.84
324 mb
153Eu
52.19
2780 mb
154Eu
8.59 a
4420 mb, β-
155Eu
4.75 a
1320 mb, β-
156Eu
15.19 d
β-
157Eu
15.18 h
β-
152Sm
26.75
473 mb
153Sm
1.93 d
1095 mb, β-
154Sm
22.75
206 mb
155Sm
22.30 m
β-
156Sm
9.40 h
β-
151Pm
1.18 d
β-
152Pm
4.12 m
β-
153Pm
5.25 m
β-
154Pm
2.68 m
β-
155Pm
41.50 s
β-
150Nd
5.6
159 mb
151Nd
12.44 m
β-
152Nd
11.40 m
β-
153Nd
31.60 s
β-
154Nd
25.90 s
β-
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Isotope: Samarium
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