Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Beryllium (Z=4)
  9Be
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
9Be 10Be




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.30.0104 ± 0.0016--
0.0 - --

(Version 0.0 corresponds to Bao et al.)
Comment
New dataset.
Last review: Aug. 16th 2009
List of all available values
originalrenorm.yeartypeCommentRef
0.0096 ± 0.0015
0.0104 ± 0.00162008cVdG, Act. + AMS, Au:RaK88; en. dep. from jeff31AW08
0.011 ± 0.004
2006cVdG, Act. + AMS, Au:RaK88LC06
0.1128
2006eendfb7
0.0127
2004ejeff31
0.0067
2002ejendl33
0.011
2008tDirect capture (DC) component: 0.0022 mb AW08


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
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
0.0166
0.0129
0.0115
0.0108 ± 0.0016
0.0104
0.0102
0.0099
0.0098
0.0098
0.0099
0.0099
SEF1.01.01.01.01.01.01.01.01.01.01.0
Rate
1.03
1.14
1.24
1.35
1.45
1.56
1.75
1.93
2.12
2.47
2.76

MACS:
Reference: AW08,jeff31
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: 2008

SEF (Stellar enhancement factor):
Reference:
Year:
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 103 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
9C
126.00 ms
β+
10C
19.26 s
β+
11C
20.33 m
β+
12C
98.89
0.0154 mb
13C
1.11
0.021 mb
8B
770.00 ms
β+
9B
0.00 ms
P
10B
19.8
11B
80.2
12B
20.20 ms
β-
7Be
53.22 d
β+
8Be
0.00 ms
α
9Be
100
0.0104 mb
10Be
1.51 Ma
β-
11Be
13.81 s
β-
6Li
7.59
7Li
92.41
0.042 mb
8Li
838.00 ms
β-
9Li
178.00 ms
β-
10Li
0.00 ms
N
5He
0.00 ms
α
6He
807.00 ms
β-
7He
0.00 ms
N
8He
119.00 ms
β-
9He
0.00 ms
N
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Isotope: Beryllium
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