Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Argon (Z=18)
  36Ar   37Ar   38Ar   39Ar   40Ar   41Ar   42Ar
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
38Ar 39Ar




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.02.75 ± 0.69*--
0.03.0 ± 0.3*--

(Version 0.0 corresponds to Bao et al.)
Comment
No experimental data. New rec. value is theoretical prediction from TENDL-2015 assuming 25% uncertainty.
Last review: April 2016
List of all available values
originalrenorm.yeartypeCommentRef
2.75
2015tTENDL-2015 using the TALYS codetendl15
0.137
2011eENDF/B-VII.1endfb71
0.137
2004eJEFF-3.1jeff31
8.07
2005tMOST 2005Gor05
11.7
2002tMOST 2002Gor02
3.8
2000tNON-SMOKERRaT99
2.6
1978tWFH78


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
eEvaluated value taken directly from the reference
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
20.4
-
9.2
5.8
4.2
3.3
2.8 ± 0.7
2.1
1.7
1.4
1.1
0.9
Xfactor1.001.001.001.001.001.001.001.001.001.001.001.00
SEF1.001.001.001.001.001.001.001.001.001.001.001.00
Rate
1.22
-
0.78
0.60
0.50
0.44
0.41
0.36
0.32
0.29
0.26
0.24

MACS:
Reference: tendl15
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: 2016

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF
Chart of nuclei
Style: (S, M, L, XL or Alberto)


Isotope: Argon