Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Nitrogen (Z=7)
  14N   15N
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
15N 16N




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.00.0058 ± 0.0006--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
0.00532 ± 0.00046
25keV
0.00581996rVdG, Act., Au:RaK88MSH96
\
(25keV)
0.00914
2006eendfb7
0.00914
2004ejeff31
0.00723
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:
rRecalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections
2Including k from Ref. ABM82, where k is a correction factor which has been applied to the originally reported cross section
5
k
eEvaluated value taken directly from the reference
V
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
0.0025
0.0035
0.0042
0.0048
0.0053
0.0058 ± 0.0005
0.0065
0.0072
0.0078
0.0087
0.0097
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
1.53
3.02
4.44
5.86
7.24
8.68
11.23
13.91
16.50
21.25
26.49

MACS:
Reference: MSH96
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: 1996

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
15F
0.00 ms
P
16F
0.00 ms
P
17F
1.07 m
β+
18F
1.83 h
β+
19F
100%
5.8 mb
14O
1.18 m
β+
15O
2.04 m
β+
16O
99.762%
0.038 mb
17O
0.038%
18O
0.2%
0.00886 mb
13N
9.96 m
β+
14N
99.634%
0.041 mb
15N
0.366%
0.0058 mb
16N
7.13 s
β-
17N
4.17 s
β-
12C
98.89%
0.0154 mb
13C
1.11%
0.021 mb
14C
5.70 ka
0.00848 mb, β-
15C
2.45 s
β-
16C
747.00 ms
β-
11B
80.2%
12B
20.20 ms
β-
13B
17.30 ms
β-
14B
12.50 ms
β-
15B
9.93 ms
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Nitrogen