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)
153Sm 154Sm




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.01095 ± 175*--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
928
2000tRaT99
629
1976tHWF76
380
2002tMOST 2002Gor02
1526
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:
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
5243
2836
1990
1552
1280
1095 ± 175
855
707
606
477
399
SEF1.021.081.131.171.211.241.291.321.341.361.37
Rate
3.19
2.57
2.31
2.15
2.05
1.97
1.85
1.75
1.67
1.54
1.45

MACS:
Reference:
Procedure: 't' (The MACS from kT=5 keV to 100 keV are obtained from theoretical calculations with corresponding uncertainties between 25 and 50% in most cases.)
Year: 2000

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

Rate:
Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
153Gd
240.41 d
4550 mb, β+
154Gd
2.18
1028 mb
155Gd
14.8
2648 mb
156Gd
20.47
615 mb
157Gd
15.65
1369 mb
152Eu
13.51 a
7600 mb, β+
153Eu
52.19
2780 mb
154Eu
8.59 a
4420 mb, β-
155Eu
4.75 a
1320 mb, β-
156Eu
15.19 d
β-
151Sm
90.00 a
2710 mb, β-
152Sm
26.75
473 mb
153Sm
1.93 d
1095 mb, β-
154Sm
22.75
206 mb
155Sm
22.30 m
β-
150Pm
2.68 h
β-
151Pm
1.18 d
β-
152Pm
4.12 m
β-
153Pm
5.25 m
β-
154Pm
2.68 m
β-
149Nd
1.73 h
β-
150Nd
5.6
159 mb
151Nd
12.44 m
β-
152Nd
11.40 m
β-
153Nd
31.60 s
β-
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Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Samarium