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




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.0448 ± 6--
0.0422 ± 4--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is average from recent evaluations (endfb71,jendl40). Uncertainty is deviation between both evaluations plus uncertainty as in WGV93.
Last review: In process
List of all available values
originalrenorm.yeartypeCommentRef
392 ± 19
E(n)= 30 (5) keV
1999cPelletron, TOF, Au:ENDF/B-VI and MaG67bDIM99
421.9 ± 3.8
448 ± 61993dVdG, TOF, Au:RaK88,Mac82eWGV93
465 ± 28
4441986cVdG, TOF, Au:B-VWKW86
690 ± 51
6391978cVdG, TOF, 10B:Mag75, Au:628mb (kT= 30keV)KYP78
370 ± 72
1967cVdG, TOF, 181Ta:762mbMaG67a
423.3
2011eENDF/B-VII.1endfb71
421.7
2011eJENDL-4.0jendl40
384.1
2004eJEFF-3.1jeff31
418.6
2002eJENDL-3.3jendl33
451
1997eMug97
430
1979eIWY79
370 ± 70
1971eAGM71
325
2005tMOST 2005Gor05
328
2002tMOST 2002Gor02
270
2000tNON-SMOKERRaT99
385
1995tTDK95
488
1986tWKW86
462
1981tHar81
235
1976tHWF76


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
dRenormalized 2017 based on updated Au measurement
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
1188 ± 81
883 ± 37
773 ± 26
617 ± 14
534 ± 9
483 ± 7
448 ± 6
403 ± 5
377 ± 5
359 ± 6
335 ± 9
317 ± 12
Xfactor1.001.001.001.001.001.001.001.000.990.980.910.82
SEF1.001.001.001.001.001.001.001.001.001.001.021.04
Rate
7.05
6.63
6.49
6.34
6.34
6.41
6.51
6.76
7.09
7.41
8.08
8.73

MACS:
Reference: Rei18
Procedure: 'd' (Renormalized 2017 based on updated Au measurement)
Year: 2018

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Chart of nuclei


Isotope: Samarium