Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Zirconium (Z=40)
  90Zr   91Zr   92Zr   93Zr   94Zr   95Zr   96Zr
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
95Zr 96Zr




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.079 ± 12*--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
50
1990sToK90
139.7
2006eendfb7
51.31
2004ejeff31
139.7
2002ejendl33
80
2000tRaT99
72
1976tHWF76
24.2
2002tMOST 2002Gor02
29.1
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:
sSemiempirical estimates given in the reference
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
296
185
136
109
91
79 ± 12
63
54
47
39
34
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
1.76
1.56
1.40
1.30
1.21
1.15
1.06
1.02
0.97
0.93
0.90

MACS:
Reference:
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: 2000

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
95Mo
15.92%
292 mb
96Mo
16.68%
112 mb
97Mo
9.55%
339 mb
98Mo
24.13%
99 mb
99Mo
2.75 d
240 mb, β-
94Nb
20.30 ka
482 mb, β-
95Nb
34.99 d
310 mb, β-
96Nb
23.35 h
β-
97Nb
1.20 h
β-
98Nb
2.86 s
β-
93Zr
1.53 Ma
95 mb, β-
94Zr
17.38%
26 mb
95Zr
64.03 d
79 mb, β-
96Zr
2.8%
10.7 mb
97Zr
16.74 h
β-
92Y
3.54 h
β-
93Y
10.18 h
β-
94Y
18.70 m
β-
95Y
10.30 m
β-
96Y
5.34 s
β-
91Sr
9.63 h
β-
92Sr
2.66 h
β-
93Sr
7.42 m
β-
94Sr
1.25 m
β-
95Sr
23.90 s
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Zirconium