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
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
42Ar 43Ar




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.02.16 ± 0.54*--

(Version 0.0 corresponds to Bao et al.)
Comment
New dataset. No experimental data. New rec. value is from TENDL-2015 which uses the TALYS code. Assuming 25% uncertainty.
Last review: April 2016
List of all available values
originalrenorm.yeartypeCommentRef
2.16
2015tTENDL-2015 using the TALYS codetendl15
1.11
2004tJEFF-3.0/A; poor information which code usedjeff30A
2.3
2000tNON-SMOKERRaT99


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
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
0.83
-
1.32
1.88
2.16
2.21
2.16 ± 0.54
1.96
1.76
1.63
1.59
1.75
SEF1.001.001.001.001.001.001.001.001.001.001.001.00
Rate
4.97
-
11.17
19.48
25.85
29.57
31.66
33.17
33.30
33.78
38.05
46.83

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:

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

Rate:
Reaction rate NA<σv> given in 104 cm3/mole/s, including SEF
Chart of nuclei
up
left
42Ca
0.647
15.6 mb
43Ca
0.135
51 mb
44Ca
2.09
9.4 mb
45Ca
162.62 d
17.5 mb, β-
46Ca
0.004
5.3 mb
41K
6.7302
22 mb
42K
12.32 h
β-
43K
22.30 h
β-
44K
22.13 m
β-
45K
17.30 m
β-
40Ar
99.6003
2.6 mb
41Ar
1.83 h
β-
42Ar
32.90 a
β-
43Ar
5.37 m
β-
44Ar
11.87 m
β-
39Cl
55.60 m
β-
40Cl
1.35 m
β-
41Cl
38.40 s
β-
42Cl
6.80 s
β-
43Cl
3.07 s
β-
38S
2.84 h
β-
39S
11.50 s
β-
40S
8.80 s
β-
41S
1.99 s
β-
42S
1.01 s
β-
right
down
Style: (S, M, L, XL or Alberto)


Isotope: Argon