Karlsruhe Astrophysical Database of Nucleosynthesis in Stars
s-process
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p-process
Available isotopes for Bromium (Z=35)
  79Br   80Br   81Br   82Br
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Recommended MACS30 (Maxwellian Averaged Cross Section @ 30keV)
80Br 81Br




Cross sections do not include stellar enhancement factors!
* only theoretical data available
History
VersionTotal MACS [mb]Partial to gs [mb]Partial to isomer [mb]
1.0871 ± 218*--

(Version 0.0 corresponds to Bao et al.)
Comment
New dataset. No direct experimental value available, the rec. value is the theoretical prediction from tendl15 with a 25% uncertainty.
Last review: December 2016
List of all available values
originalrenorm.yeartypeCommentRef
870.7
2015tTENDL-2015 using the TALYS codetendl15
707.4
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
2318
-
1578
1269
1085
961
871 ± 218
745
659
593
498
429
SEF1.001.011.021.031.051.071.081.111.121.121.070.99
Rate
1.38
-
1.35
1.35
1.36
1.36
1.37
1.39
1.39
1.37
1.27
1.13

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: 2015

X-factor:

SEF (Stellar enhancement factor):
Reference: RaT99
Year: 2000
Comment:

Rate:
Reaction rate NA<σv> given in 108 cm3/mole/s, including SEF
Chart of nuclei
up
left
80Rb
33.40 s
β+
81Rb
4.57 h
β+
82Rb
1.27 m
β+
83Rb
86.20 d
β+
84Rb
33.10 d
β+
79Kr
1.46 d
959 mb, β+
80Kr
2.28
267 mb
81Kr
229.02 ka
607 mb, β+
82Kr
11.58
90 mb
83Kr
11.49
243 mb
78Br
6.46 m
β+
79Br
50.69
622 mb
80Br
17.68 m
β-
81Br
49.31
239 mb
82Br
1.47 d
β-
77Se
7.63
418 mb
78Se
23.77
109 mb
79Se
294.99 ka
263 mb, β-
80Se
49.61
42 mb
81Se
18.45 m
β-
76As
1.09 d
β-
77As
1.62 d
β-
78As
1.51 h
β-
79As
9.01 m
β-
80As
15.20 s
β-
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Style: (S, M, L, XL or Alberto)


Isotope: Bromium