Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Hydrogen (Z=1)
  1H   2H
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
2H 3H




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.30.0030 ± 0.0002--
0.0---

(Version 0.0 corresponds to Bao et al.)
Comment
New dataset.
Last review: August 17th, 2009
List of all available values
originalrenorm.yeartypeCommentRef
0.0030 ± 0.0002
2006cPelletron, TOF, 7Li(p,n), 6Li and Au:ENDF/B-VINKS06
0.001989
2006eendfb7
0.001989
2004ejeff31
0.002351
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
0.0036
0.0031
0.0029
0.0028
0.0027
0.0030 ± 0.0002
0.0030
0.0030
0.0031
0.0034
0.0045
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
2.61
3.18
3.64
4.06
4.37
5.32
6.15
6.87
7.78
9.85
14.57

MACS:
Reference: NKS06
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: 2006

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
4Li
0.00 ms
P
5Li
0.00 ms
α
6Li
7.59
3He
0.000137
0.0076 mb
4He
99.9999
5He
0.00 ms
α
1H
99.985
0.254 mb
2H
0.015
3H
12.32 a
β-
4H
0.00 ms
N
1Nn
10.24 m
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Hydrogen
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