Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Vanadium (Z=23)
  50V   51V
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
51V 52V




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.038 ± 4--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: 1999
List of all available values
originalrenorm.yeartypeCommentRef
38 ± 4
1978rLinac, TOF, 6Li, Au:Sat., k=1.0360 Recalcul. including data of MDH81WMH78
42 ± 3
1978c,1Linac, TOF, 6Li, Au:Sat., k=1.0360WMH78
16.4 ± 4.0
13.71979cF.N.B., Act., 1/v(E), 127I:832mb(25keV)AJB79
25
1971eAGM71
25.73
2006eendfb7
25.73
2004ejeff31
31.74
2002ejendl33
20
2000tRaT99
22
1978tWFH78
32.1
2002tMOST 2002Gor02
29.6
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:
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
1Including k from Ref. MaW81, 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
226
123
80
58
46
38 ± 4
29
24
21
18
17
SEF1.001.001.001.001.001.001.001.001.000.990.98
Rate
1.35
1.04
0.83
0.69
0.61
0.56
0.49
0.45
0.43
0.43
0.45

MACS:
Reference: MDH81,WMH78
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: 1978

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

Rate:
Reaction rate NA<σv> given in 107 cm3/mole/s, including SEF
Isotopic mass chain
Isotopic Mass Chain
Chart of nuclei
up
left
51Mn
46.20 m
β+
52Mn
5.59 d
β+
53Mn
3.74 Ma
β+
54Mn
312.15 d
β+
55Mn
100%
39.6 mb
50Cr
4.345%
49 mb
51Cr
27.70 d
87 mb, β+
52Cr
83.789%
8.8 mb
53Cr
9.501%
58 mb
54Cr
2.365%
6.7 mb
49V
329.05 d
β+
50V
0.25%
50 mb
51V
99.75%
38 mb
52V
3.74 m
β-
53V
1.60 m
β-
48Ti
73.72%
31.8 mb
49Ti
5.41%
22.1 mb
50Ti
5.18%
3.6 mb
51Ti
5.76 m
β-
52Ti
1.70 m
β-
47Sc
3.35 d
β-
48Sc
1.82 d
β-
49Sc
57.20 m
β-
50Sc
1.71 m
β-
51Sc
12.40 s
β-
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Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Vanadium