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)
45Ca 46Ca




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.017.7 ± 4.4*--
0.017.5 ± 3.5*--

(Version 0.0 corresponds to Bao et al.)
Comment
No exp. data available. New rec. value is average from TENDL-2015 and JEFF-3.0/A. Assuming 25% uncertainty.
Last review: May 2016
List of all available values
originalrenorm.yeartypeCommentRef
20.2
2015tTENDL-2015 using the TALYS codetendl15
27.9
2014tJEFF-3.2 using TENDL-2012jeff32
15.1
2005tJEFF-3.0/Ajeff30A
61.5
2005tMOST 2005Gor05
69.8
2002tMOST 2002Gor02
16.7
2000tNON-SMOKERRaT99
14
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:
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
63.6
-
38.2
29.0
23.7
20.2
17.7 ± 4.4
14.2
12.0
10.4
8.2
6.8
Xfactor1.001.001.001.001.001.001.000.990.990.980.950.93
SEF1.001.001.001.001.001.001.001.000.990.980.970.95
Rate
3.80
-
3.23
3.00
2.83
2.70
2.59
2.39
2.25
2.12
1.89
1.73

MACS:
Reference: tendl15,jeff30A
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 106 cm3/mole/s, including SEF
Chart of nuclei
up
left
45Ti
3.08 h
β+
46Ti
8.25
26.8 mb
47Ti
7.44
64.4 mb
48Ti
73.72
31.8 mb
49Ti
5.41
22.1 mb
44Sc
3.97 h
β+
45Sc
100
69 mb
46Sc
83.79 d
β-
47Sc
3.35 d
β-
48Sc
1.82 d
β-
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
47Ca
4.54 d
β-
42K
12.32 h
β-
43K
22.30 h
β-
44K
22.13 m
β-
45K
17.30 m
β-
46K
1.75 m
β-
41Ar
1.83 h
β-
42Ar
32.90 a
β-
43Ar
5.37 m
β-
44Ar
11.87 m
β-
45Ar
21.48 s
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Calcium