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)
41Ca 42Ca




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.038.1 ± 9.5*--
0.030 ± 7*--

(Version 0.0 corresponds to Bao et al.)
Comment
No exp. data available. New rec. value is from TENDL-2015 which uses the TALYS code. Assuming 25% uncertainty.
Last review: May 2016
List of all available values
originalrenorm.yeartypeCommentRef
38.1
2015tTENDL-2015 using the TALYS codetendl15
33.7
2012tJEFF-3.2 using TENDL-2012jeff32
15.1
2005tJEFF-3.0/Ajeff30A
101
2005tMOST 2005Gor05
118
2002tMOST 2002Gor02
30.8
2000tNON-SMOKERRaT99
15
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
151.6
-
85.7
63.7
51.7
43.8
38.1 ± 9.5
30.4
25.4
21.9
17.3
14.5
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
9.07
-
7.25
6.60
6.19
5.86
5.59
5.15
4.81
4.54
4.14
3.88

MACS:
Reference: tendl15
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
41Ti
80.40 ms
β+
42Ti
199.00 ms
β+
43Ti
509.00 ms
β+
44Ti
59.99 a
β+
45Ti
3.08 h
β+
40Sc
182.00 ms
β+
41Sc
596.00 ms
β+
42Sc
681.00 ms
β+
43Sc
3.89 h
β+
44Sc
3.97 h
β+
39Ca
860.00 ms
β+
40Ca
96.94
6.7 mb
41Ca
102.01 ka
30 mb, β+
42Ca
0.647
15.6 mb
43Ca
0.135
51 mb
38K
7.64 m
β+
39K
93.2581
11.8 mb
40K
1.25x109 y
31 mb, β-
41K
6.7302
22 mb
42K
12.32 h
β-
37Ar
34.95 d
β+
38Ar
0.0632
3 mb
39Ar
269.01 a
8 mb, β-
40Ar
99.6003
2.6 mb
41Ar
1.83 h
β-
right
down
Style: (S, M, L, XL or Alberto)


Isotope: Calcium