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
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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]
1.0106 ± 26*--
0.079 ± 12*--

(Version 0.0 corresponds to Bao et al.)
Comment
No experimental value available, the rec. value is the average of the theoretical predictions from tendl15 and endfb71 with a 25% uncertainty.
Last review: December 2016
List of all available values
originalrenorm.yeartypeCommentRef
84.3
2015tTENDL-2015 using the TALYS codetendl15
139.0
2014tJEFF-3.2 using calculations from TENDL-2012jeff32
128.5
2011tENDF/B-VII.1endfb71
129.3
2011tJENDL-4.0jendl40
139.7
2006tENDF/B-VII.0endfb7
51.3
2004tJEFF-3.1jeff31
139.7
2002tJENDL-3.3jendl33
28.2
2014sSemi-empirical estimate, derived as in ToK90Lug14
50
1990sSemi-empirical estimateToK90
29.1
2005tMOST 2005Gor05
24.2
2002tMOST 2002Gor02
126.1
2000tNON-SMOKERRaT99
72
1976tHWF76


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
sSemiempirical estimates given in the reference
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
452
-
260
188
148
123
106 ± 26
84
71
62
50
44
Xfactor1.001.001.001.001.001.001.001.001.001.001.001.00
SEF1.001.001.001.001.001.001.001.001.001.001.001.00
Rate
2.69
-
2.19
1.94
1.76
1.63
1.54
1.41
1.33
1.28
1.19
1.17

MACS:
Reference: tendl15,endfb71
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:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
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
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Style: (S, M, L, XL or Alberto)


Isotope: Zirconium