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)
152Sm 153Sm




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.2473 ± 4--
0.0473 ± 4--

(Version 0.0 corresponds to Bao et al.)
Comment
No change in recommended cross section.
Last review: January 30th, 2006
List of all available values
originalrenorm.yeartypeCommentRef
431 ± 16
2001cVdG, Act., 1/v(kT), Au:RaK88BSA01
431 ± 18
1995cVdG, Act., 1/v(kT), Au:RaK88Sto93
473.2 ± 4.4
1993cVdG, TOF, Au:RaK88,Mac82eWGV93
445 ± 25
1992cVdG, TOF, Au+Ag+Nd+etc.:Sat.BKP92
401 ± 24
3951984cVdG, Act., 1/v(kT), Au:657mb(25keV)BKY84
606 ± 61
5621978bVdG, TOF, 10B:Mag75, Au:628mb(kT=30keV)KYP78
410 ± 70
1967cVdG, TOF, 181Ta:762mbMaG67a
400
1997eMug97
420
1979eIWY79
450 ± 50
1971eAGM71
458.8
2006eendfb7
495.4
2004ejeff31
479.3
2002ejendl33
338
2000tRaT99
687
1981tHar81
346
1976tHWF76
499
2002tMOST 2002Gor02
506
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
1249
863
687
581
519
473 ± 4
410
365
331
283
250
SEF1.001.001.001.011.021.031.071.121.171.261.35
Rate
7.41
7.24
7.07
6.94
7.01
7.11
7.40
7.67
7.92
8.46
8.97

MACS:
Reference: WGV93
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


Isotope: Samarium
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