Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
[Standards]   [Logbook]   [FAQ]   [Links]   [Contact]
p-process
Available isotopes for Calcium (Z=20)
  40Ca   41Ca   42Ca   43Ca   44Ca   45Ca   46Ca   47Ca   48Ca
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
47Ca 48Ca




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.09.3 ± 2.3*--

(Version 0.0 corresponds to Bao et al.)
Comment
New dataset. 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
9.1
2015tTENDL-2015 using the TALYS codetendl15
9.4
2005tJEFF-3.0/Ajeff30A
2.4
2000tNON-SMOKERRaT99


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
30.8
-
19.0
14.3
11.8
10.3
9.3 ± 2.3
7.9
7.0
6.4
5.6
5.1
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
1.84
-
1.61
1.48
1.41
1.38
1.36
1.34
1.32
1.32
1.34
1.36

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
47Ti
7.44
64.4 mb
48Ti
73.72
31.8 mb
49Ti
5.41
22.1 mb
50Ti
5.18
3.6 mb
51Ti
5.76 m
β-
46Sc
83.79 d
β-
47Sc
3.35 d
β-
48Sc
1.82 d
β-
49Sc
57.20 m
β-
50Sc
1.71 m
β-
45Ca
162.62 d
17.5 mb, β-
46Ca
0.004
5.3 mb
47Ca
4.54 d
β-
48Ca
0.187
0.87 mb
49Ca
8.72 m
β-
44K
22.13 m
β-
45K
17.30 m
β-
46K
1.75 m
β-
47K
17.50 s
β-
48K
6.80 s
β-
43Ar
5.37 m
β-
44Ar
11.87 m
β-
45Ar
21.48 s
β-
46Ar
8.40 s
β-
47Ar
1.23 s
β-
right
down
Style: (S, M, L, XL or Alberto)


Isotope: Calcium