Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Calcium (Z=20)
  40Ca   41Ca   42Ca   43Ca   44Ca   45Ca   46Ca   47Ca   48Ca
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
44Ca 45Ca




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.07.7 ± 1.1--
0.09.4 ± 1.3--

(Version 0.0 corresponds to Bao et al.)
Comment
New rec. value is from recent evaluated libraries (tendl15,jeff32/endfb71/jendl40) using uncertainty quoted in MAB77b.
Last review: May 2016
List of all available values
originalrenorm.yeartypeCommentRef
9.4 ± 1.3
1977rLinac, TOF, 6Li, Au:Sat.; Recalc. incl. data of MDH81MAB77b
8.8 ± 1.3
1977c,2Linac, TOF, 6Li, Au:Sat.MAB77b
7.6
2015eTENDL-2015 using the TALYS codetendl15
7.8
2014eJEFF-3.2jeff32
7.8
2011eENDF/B-VII.1endfb71
7.8
2011eJENDL-4.0jendl40
8.3
2005tJEFF-3.0/Ajeff30A
20.5
2005tMOST 2005Gor05
22.6
2002tMOST 2002Gor02
7.9
2000tNON-SMOKERRaT99
7.5
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:
rRecalculated for kT = 30keV with the code described in Ref. 2 after renormalizing the original data to updated standard cross sections
cDirectly quoted from the reference itself
2Including k from Ref. ABM82, where k is a correction factor which has been applied to the originally reported cross section
eEvaluated value taken directly from the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
9.5
-
12.0
10.8
9.5
8.5
7.7 ± 1.1
6.6
5.9
5.3
4.5
3.9
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
5.68
-
10.15
11.19
11.36
11.37
11.28
11.16
11.16
10.98
10.76
10.43

MACS:
Reference: MAB77b,tendl15,jeff32,endfb71,jendl40
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 105 cm3/mole/s, including SEF
Chart of nuclei
up
left
44Ti
59.99 a
β+
45Ti
3.08 h
β+
46Ti
8.25
26.8 mb
47Ti
7.44
64.4 mb
48Ti
73.72
31.8 mb
43Sc
3.89 h
β+
44Sc
3.97 h
β+
45Sc
100
69 mb
46Sc
83.79 d
β-
47Sc
3.35 d
β-
42Ca
0.647
15.6 mb
43Ca
0.135
51 mb
44Ca
2.09
9.4 mb
45Ca
162.62 d
17.5 mb, β-
46Ca
0.004
5.3 mb
41K
6.7302
22 mb
42K
12.32 h
β-
43K
22.30 h
β-
44K
22.13 m
β-
45K
17.30 m
β-
40Ar
99.6003
2.6 mb
41Ar
1.83 h
β-
42Ar
32.90 a
β-
43Ar
5.37 m
β-
44Ar
11.87 m
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Calcium