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   48Ca
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
42Ca 43Ca




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.015.6 ± 2.0--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
15.6 ± 2.0
1977c,2Linac, TOF, 6Li, Au:Sat.MAB77b
12.40
2006eendfb7
12.40
2004ejeff31
12.40
2002ejendl33
18
2000tRaT99
12
1978tWFH78
38.7
2002tMOST 2002Gor02
34.1
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:
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
Energy5keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
30.3
25.9
21.6
18.9
17.0
15.6 ± 2.0
13.7
12.3
11.3
9.4
8.0
SEF1.001.001.001.001.001.001.001.001.001.001.00
Rate
1.81
2.19
2.24
2.26
2.27
2.29
2.32
2.33
2.34
2.25
2.14

MACS:
Reference: MAB77b
Procedure: 'e' (The Maxwellian-averaged cross sections (MACS) from kT=5 keV to 100 keV are obtained from experimental data; the relative uncertainties are similar to those quoted for the 30 keV data.)
Year: 1977

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

Rate:
Reaction rate NA<σv> given in 106 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
42Ti
199.00 ms
β+
43Ti
509.00 ms
β+
44Ti
59.99 a
β+
45Ti
3.08 h
β+
46Ti
8.25%
26.8 mb
41Sc
596.00 ms
β+
42Sc
681.00 ms
β+
43Sc
3.89 h
β+
44Sc
3.97 h
β+
45Sc
100%
69 mb
40Ca
96.94%
6.7 mb
41Ca
102.01 ka
30 mb, β+
42Ca
0.647%
15.6 mb
43Ca
0.135%
51 mb
44Ca
2.09%
9.4 mb
39K
93.2581%
11.8 mb
40K
1.25x109 y
31 mb, β-
41K
6.7302%
22 mb
42K
12.32 h
β-
43K
22.30 h
β-
38Ar
0.0632%
3 mb
39Ar
269.01 a
8 mb, β-
40Ar
99.6003%
2.6 mb
41Ar
1.83 h
β-
42Ar
32.90 a
β-
right
down
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Calcium