Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Sulfur (Z=16)
  32S   33S   34S   35S   36S
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
33S 34S




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.07.06 ± 0.46--
0.07.4 ± 1.5--

(Version 0.0 corresponds to Bao et al.)
Comment
Rec. value is from recent JEFF-3.2 evaluation taking the 6.5 % uncertainty from AHM75. Discrepance to previous evaluations which rely on data from MDH81 and a conference proceeding from 1981 and seem not to include all data from AHM75.
Last review: April 2016
List of all available values
originalrenorm.yeartypeCommentRef
7.25 ± 0.46
1975,2013c,1Linac, TOF,6Li; Au:Sat., k=0.985; sigma_th=20mbAHM75
7.06
2014eJEFF-3.2jeff32
2.28
2011eENDF/B-VII.1endfb71
2.28
2011eJENDL-4.0jendl40
2.28
2004eJEFF-3.1jeff31
86.5
2005tMOST 2005Gor05
87.7
2002tMOST 2002Gor02
15.1
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:
cDirectly quoted from the reference itself
1Including k from Ref. MaW81, where k is a correction factor which has been applied to the originally reported cross section
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
7.76
-
13.27
12.23
10.23
8.46
7.06 ± 0.46
5.10
3.87
3.05
2.08
1.54
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
4.66
-
11.26
12.71
12.28
11.35
10.38
8.66
7.35
6.34
4.99
4.13

MACS:
Reference: AHM75,jeff32
Procedure: 'e+t' (The MACS from kT=5 keV to 100 keV are derived from calculated cross sections, which are then normalized to experimental data, e.g. to the values at kT=25 keV obtained in activation measurements. In these cases the uncertainties should be linearly increased below 25 and above 30 keV to reach about 30% at the extreme kT values.)
Year: 1975,2016

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 105 cm3/mole/s, including SEF
Chart of nuclei
up
left
33Ar
173.00 ms
β+
34Ar
845.00 ms
β+
35Ar
1.77 s
β+
36Ar
0.3365
9 mb
37Ar
34.95 d
β+
32Cl
298.00 ms
β+
33Cl
2.51 s
β+
34Cl
1.53 s
β+
35Cl
75.77
10 mb
36Cl
301.01 ka
12 mb, β-
31S
2.57 s
β+
32S
95.02
4.1 mb
33S
0.75
7.4 mb
34S
4.21
0.226 mb
35S
87.51 d
β-
30P
2.50 m
β+
31P
100
1.74 mb
32P
14.26 d
β-
33P
25.34 d
β-
34P
12.43 s
β-
29Si
4.683
7.9 mb
30Si
3.087
6.5 mb
31Si
2.62 h
β-
32Si
132.02 a
β-
33Si
6.18 s
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Sulfur