Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Arsenium (Z=33)
  75As   76As   77As
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
76As 77As




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.0894 ± 224*--

(Version 0.0 corresponds to Bao et al.)
Comment
No exp. data available. New rec. value is average from tendl15. Assuming 25% uncertainty.
Last review: June 2016
List of all available values
originalrenorm.yeartypeCommentRef
894
2015tTENDL-2015 using the TALYS codetendl15
470
2004tJEFF-3.0/Ajeff30A
589
2000tNON-SMOKERRaT99


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:
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
2585
-
1677
1322
1123
991
894 ± 224
759
665
593
488
412
SEF1.001.001.000.990.970.950.920.860.800.740.640.58
Rate
1.54
-
1.41
1.35
1.30
1.25
1.20
1.10
1.00
0.90
0.74
0.63

MACS:
Reference: tendl15
Procedure: 't' (The MACS from kT=5 keV to 100 keV are obtained from theoretical calculations with corresponding uncertainties between 25 and 50% in most cases.)
Year: 2016

X-factor:

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

Rate:
Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF
Chart of nuclei
up
left
76Br
16.20 h
β+
77Br
2.38 d
β+
78Br
6.46 m
β+
79Br
50.69
622 mb
80Br
17.68 m
β-
75Se
119.78 d
β+
76Se
9.37
164 mb
77Se
7.63
418 mb
78Se
23.77
109 mb
79Se
294.99 ka
263 mb, β-
74As
17.77 d
β+
75As
100
362 mb
76As
1.09 d
β-
77As
1.62 d
β-
78As
1.51 h
β-
73Ge
7.76
243 mb
74Ge
36.73
37.6 mb
75Ge
1.38 h
β-
76Ge
7.83
21.5 mb
77Ge
11.30 h
β-
72Ga
14.10 h
β-
73Ga
4.86 h
β-
74Ga
8.12 m
β-
75Ga
2.10 m
β-
76Ga
32.60 s
β-
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Isotope: Arsenium