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)
85Rb 86Rb




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.3234 ± 7--
0.0240 ± 9--

(Version 0.0 corresponds to Bao et al.)
Comment
New recommended value is weighted average of BeM89 and HKU08b.
Last review: April 23rd, 2009
List of all available values
originalrenorm.yeartypeCommentRef
221 ± 13
2008cVdG, Act., Au:RaK88HKU08b
240 ± 9
1989cLinac, TOF, 6Li+235U, Au:Sat.BeM89
360 ± 20
3551986cVdG, Act., 1/v(kT), Au:657mb(25keV)Wal84,WBK86a
215 ± 20
1971eAGM71
282.4
2006eendfb7
262.7
2004ejeff31
282.6
2002ejendl33
399
2000tRaT99
278
1981tHar81
387
1976tHWF76
212
2002tMOST 2002Gor02
197
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
705
469
365
305
264
234 ± 7
194
167
149
126
107
SEF1.001.001.001.001.001.000.990.980.970.940.91
Rate
4.19
3.95
3.76
3.63
3.51
3.40
3.23
3.08
2.97
2.81
2.60

MACS:
Reference: BeM89,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: 1989,2008

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

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
85Y
2.68 h
β+
86Y
14.74 h
β+
87Y
3.33 d
β+
88Y
106.62 d
β+
89Y
100
19 mb
84Sr
0.56
368 mb
85Sr
64.84 d
β+
86Sr
9.86
64 mb
87Sr
7
92 mb
88Sr
82.58
6.2 mb
83Rb
86.20 d
β+
84Rb
33.10 d
β+
85Rb
72.17
234 mb
86Rb
18.64 d
202 mb, β-
87Rb
49.69x109 y
15.7 mb, β-
82Kr
11.58
90 mb
83Kr
11.49
243 mb
84Kr
57
38 mb
85Kr
10.72 a
55 mb, β-
86Kr
17.3
3.4 mb
81Br
49.31
239 mb
82Br
1.47 d
β-
83Br
2.40 h
β-
84Br
31.80 m
β-
85Br
2.90 m
β-
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Isotope: Rubidium
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