Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Rubidium (Z=37)
  85Rb   86Rb   87Rb
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
87Rb 88Rb




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.315.7 ± 0.8--
0.015.5 ± 1.5--

(Version 0.0 corresponds to Bao et al.)
Comment
New recommended value is weighted average of JaK96a and HKU08b.
Last review: April 23rd, 2009
List of all available values
originalrenorm.yeartypeCommentRef
15.8 ± 0.9
2008cVdG, Act., Au:RaK88HKU08b
15.5 ± 1.5
1996cVdG, TOF., Au:RaK88,Mac82eJaK96a
18.0 ± 0.5
1993cVdG, Act., 1/v(kT), Au:RaK88RGB93
15.7 ± 1.6
1990cVdG, TOF, Au:RaK88,Mac82eJaa90
21.5 ± 2.0
1989cLinac, TOF, 6Li+235U, Au:Sat.BeM89
11 ± 2
1986cVdG, Act., 1/v(kT), Au:657mb(25keV)Wal84,WBK86a
52 ± 16
441973cSb-Be, Act., 1/v(E), 127I:832mb(24keV)MSR73
24 ± 4
1971eAGM71
23.33
2006eendfb7
20.29
2004ejeff31
23.33
2002ejendl33
39
2000tRaT99
20
1981tHar81
31
1976tHWF76
19.7
2002tMOST 2002Gor02
18.8
2005tMOST 2005Gor05


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
35.8
24.7
20.9
18.7
16.6
15.7 ± 0.8
14.0
12.7
11.8
10.7
9.9
SEF1.001.001.001.001.001.001.001.001.001.000.99
Rate
2.13
2.08
2.15
2.22
2.21
2.29
2.35
2.39
2.43
2.54
2.62

MACS:
Reference: BeM89,JaK96a,HKU08b
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: 1996,2008

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

Rate:
Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
87Y
3.33 d
β+
88Y
106.62 d
β+
89Y
100
19 mb
90Y
2.67 d
β-
91Y
58.51 d
β-
86Sr
9.86
64 mb
87Sr
7
92 mb
88Sr
82.58
6.2 mb
89Sr
50.57 d
19 mb, β-
90Sr
28.90 a
β-
85Rb
72.17
234 mb
86Rb
18.64 d
202 mb, β-
87Rb
49.69x109 y
15.7 mb, β-
88Rb
17.77 m
β-
89Rb
15.15 m
β-
84Kr
57
38 mb
85Kr
10.72 a
55 mb, β-
86Kr
17.3
3.4 mb
87Kr
1.27 h
β-
88Kr
2.84 h
β-
83Br
2.40 h
β-
84Br
31.80 m
β-
85Br
2.90 m
β-
86Br
55.01 s
β-
87Br
55.65 s
β-
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Isotope: Rubidium
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