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)
34S 35S




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.00.244 ± 0.011--
0.00.226 ± 0.010--

(Version 0.0 corresponds to Bao et al.)
Comment
Rec. values are from RSK99, renormalized by 632 mb/586 mb= 1.0785.
Last review: April 2016
List of all available values
originalrenorm.yeartypeCommentRef
0.226 ± 0.010
0.244 ± 0.0112000cVdG & Reactor, Act., sigmath(197Au,34S,45Sc,59Co): BNL325(1997); VdG, Act., Au:RaK88 norm. by 1.0785,Mac82e, Reson.param. from End90RSK99
0.314
2014eJEFF-3.2jeff32
0.234
2011eENDF/B-VII.1endfb71
0.234
2011eJENDL-4.0jendl40
0.234
2004eJEFF-3.1jeff31
9.96
2005tMOST 2005Gor05
10.7
2002tMOST 2002Gor02
3.5
2000tNON-SMOKERRaT99
2.9
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:
cDirectly quoted from the reference itself
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
0.396 ± 0.011
-
0.276 ± 0.009
0.230 ± 0.006
0.220 ± 0.008
0.229 ± 0.009
0.244 ± 0.011
0.270 ± 0.013
0.283 ± 0.014
0.288 ± 0.014
0.290 ± 0.016
0.286 ± 0.016
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
2.38
-
2.34
2.39
2.64
3.07
3.59
4.58
5.37
5.99
6.96
7.67

MACS:
Reference: RSK99
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: 2000,2015

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 104 cm3/mole/s, including SEF
Chart of nuclei
up
left
34Ar
845.00 ms
β+
35Ar
1.77 s
β+
36Ar
0.3365
9 mb
37Ar
34.95 d
β+
38Ar
0.0632
3 mb
33Cl
2.51 s
β+
34Cl
1.53 s
β+
35Cl
75.77
10 mb
36Cl
301.01 ka
12 mb, β-
37Cl
24.23
2.15 mb
32S
95.02
4.1 mb
33S
0.75
7.4 mb
34S
4.21
0.226 mb
35S
87.51 d
β-
36S
0.02
0.171 mb
31P
100
1.74 mb
32P
14.26 d
β-
33P
25.34 d
β-
34P
12.43 s
β-
35P
47.30 s
β-
30Si
3.087
6.5 mb
31Si
2.62 h
β-
32Si
132.02 a
β-
33Si
6.18 s
β-
34Si
2.77 s
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Sulfur