Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Zinc (Z=30)
  64Zn   65Zn   66Zn   67Zn   68Zn   69Zn   70Zn
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
66Zn 67Zn




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.036.2 ± 3.3--
0.035 ± 3--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is from recent evaluations (endfb71/jendl40,tendl15) using the exp. uncertainty of 8.6% from GTH81a plus the deviation between the evaluations.
Last review: June 2016
List of all available values
originalrenorm.yeartypeCommentRef
35 ± 3
1981a,1Linac, TOF, 6Li, Au:Sat., k=0.9507GTH81b
36.0
2015eTENDL-2015 using the TALYS codetendl15
35.9
2014eJEFF-3.2 using TENDL-2012jeff32
36.4
2011eENDF/B-VII.1endfb71
36.4
2011eJENDL-4.0jendl40
33.2
2004eJEFF-3.0/Ajeff30A
40
1971sAGM71
51.0
2005tMOST 2005Gor05
63.1
2002tMOST 2002Gor02
47.5
2000tNON-SMOKERRaT99
19
1981tHar81
26
1978tWFH78


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:
aCalculated from resonance parameters with the formula from Ref. 45
1Including k from Ref. MaW81, where k is a correction factor which has been applied to the originally reported cross section
eEvaluated value taken directly from the reference
sSemiempirical estimates given in the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
85.9 ± 7.6
-
70.3 ± 6.0
55.8 ± 4.8
46.6 ± 4.0
40.5 ± 3.5
36.2 ± 3.3
30.7 ± 3.2
27.4 ± 3.4
25.1 ± 3.7
22.3 ± 4.1
20.6 ± 4.4
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
5.12
-
5.92
5.76
5.55
5.40
5.28
5.17
5.16
5.18
5.31
5.49

MACS:
Reference: endfb71, jendl40,tendl15,GTH81b
Procedure: 'e+t' (The MACS from kT=5 keV to 100 keV are derived from calculated cross sections, which are then normalized to experimental data, e.g. to the values at kT=25 keV obtained in activation measurements. In these cases the uncertainties should be linearly increased below 25 and above 30 keV to reach about 30% at the extreme kT values.)
Year: 2016

X-factor:
Reference: Rau12
Year: 2012

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

Rate:
Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF
Chart of nuclei
up
left
66Ge
2.26 h
β+
67Ge
18.90 m
β+
68Ge
270.95 d
β+
69Ge
1.63 d
β+
70Ge
20.37
88 mb
65Ga
15.20 m
β+
66Ga
9.49 h
β+
67Ga
3.26 d
β+
68Ga
1.13 h
β+
69Ga
60.108
139 mb
64Zn
48.63
59 mb
65Zn
243.63 d
162 mb, β+
66Zn
27.9
35 mb
67Zn
4.1
153 mb
68Zn
18.75
19.2 mb
63Cu
69.17
94 mb
64Cu
12.70 h
β+
65Cu
30.83
41 mb
66Cu
5.12 m
β-
67Cu
2.58 d
β-
62Ni
3.634
22.3 mb
63Ni
100.11 a
31 mb, β-
64Ni
0.926
8.7 mb
65Ni
2.52 h
β-
66Ni
2.27 d
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Zinc