Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Carbon (Z=6)
  12C   13C   14C
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
12C 13C




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.00.0154 ± 0.0010--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
0.0154 ± 0.0010
1994cPelletron, TOF, Au:B-V MaG67bONI94
0.0168 ± 0.0021
1991cVdG, TOF, Au:B-VNIT91
0.0032 ± 0.0140
1990cLinac, TOF, 6Li, Au:Sat.Mac90
0.2 ± 0.4
1971eAGM71
0.00135
2006eendfb7
0.00135
2004ejeff31
0.0161
2002ejendl33


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
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
0.0126
0.0125
0.013
0.0139
0.0147
0.0154 ± 0.0010
0.0169
0.0183
0.0196
0.022
0.024
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
7.75
10.88
13.86
17.11
20.23
23.22
29.42
35.62
41.79
54.16
66.06

MACS:
Reference: ONI94
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: 1994

SEF (Stellar enhancement factor):
Reference: Rau09
Year: 2009
Comment:
. Please note: SEF for this element have not been calculated but are expected to be close to 1.
Rate:
Reaction rate NA<σv> given in 102 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
12O
0.00 ms
P
13O
8.58 ms
β+
14O
1.18 m
β+
15O
2.04 m
β+
16O
99.762%
0.038 mb
11N
0.00 ms
P
12N
11.00 ms
β+
13N
9.96 m
β+
14N
99.634%
0.041 mb
15N
0.366%
0.0058 mb
10C
19.26 s
β+
11C
20.33 m
β+
12C
98.89%
0.0154 mb
13C
1.11%
0.021 mb
14C
5.70 ka
0.00848 mb, β-
9B
0.00 ms
P
10B
19.8%
11B
80.2%
12B
20.20 ms
β-
13B
17.30 ms
β-
8Be
0.00 ms
α
9Be
100%
0.0104 mb
10Be
1.51 Ma
β-
11Be
13.81 s
β-
12Be
21.50 ms
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Carbon