Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Hafnium (Z=72)
  174Hf   176Hf   177Hf   178Hf   179Hf   180Hf   181Hf   182Hf
Go to isotope
Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
178Hf 179Hf




Cross sections do not include stellar enhancement factors!
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
0.2319 ± 3--
0.0314 ± 10--

(Version 0.0 corresponds to Bao et al.)
Comment
Last review: July 18th, 2005
List of all available values
originalrenorm.yeartypeCommentRef
318.8 ± 2.7
2004cVdG, TOF, Au:RaK88Wis04d
327 ± 20
1992cVdG, TOF, Au+Ag+Nd+etc.:Sat.BKP92
310 ± 10
1982cLinac, TOF, 6Li, Au:Sat.BeM82
330
1976equoted from BKW82DSM76
370
1971sAGM71
305.0
2006eendfb7
297.2
2004ejeff31
297.2
2002ejendl33
395
2000tRaT99
583
1981tHar81
510
1976tHWF76
367
2002tMOST 2002Gor02
336
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
eEvaluated value taken directly from the reference
sSemiempirical estimates given in the reference
tTheoretical value
MACS, SEF and Reaction Rates for different energies
Energy5keV8keV10keV15keV20keV25keV30keV40keV50keV60keV80keV100keV
MACS
 
 633 
 556 
 447 
 388 
 348 
319 ± 3
 276 
 246 
 223 
 191 
 169 
SEF1.001.01.001.011.031.061.101.181.251.311.411.51
Rate-
4.75
4.66
4.62
4.74
4.91
5.12
5.47
5.76
5.98
6.40
6.77

MACS:
Reference: Wis04d
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: 2004

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
Style: (Size: S, M, L, XL, Alberto; No-Macs: nox)


Isotope: Hafnium
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