Os, 
Os, and 
Os for the Re-Os chronologySegawa, Mariko 
; Masaki, Tomohiro*; Nagai, Yasuki*; Temma, Yasuyuki*; Shima, Tatsushi*; Mishima, Kenji*; Igashira, Masayuki*; Goriely, S.*; Koning, A.*; Hilaire, S.*
Discrete as well as continuum 
-ray energy spectra from the neutron capture by Os, Os, and Os have been taken for the first time at 5 
En 90 keV by an anti-Compton NaI(Tl) spectrometer. The detection of a weak discrete -ray, about 0.5% of total -ray strength, demonstrates the high sensitivity of the present measurement. The energy spectra enabled us to accurately determine the reaction cross sections with a small systematic uncertainty. Based on the new cross sections, we re-estimate on the basis of a careful reaction cross section calculation the correction factor F
for the neutron capture on the 9.75-keV first excited state in Os as a function of stellar temperature, as required to derive the age of the Galaxy within the Re-Os chronology.
Language |
: | English |
|---|---|---|
Journal |
: | |
Volume |
: | 76 |
Number |
: | 2 |
Pages |
: | p.022802_1 - 022802_5 |
Publication Year/Month |
: | 2007/08 |
Paper URL |
: |
|
Keywords |
: | no keyword |
Accesses |
: |
- Accesses |
|---|---|---|
InCites™ |
: |
Percentile:72.66 Category:Physics, Nuclear |
Altmetrics |
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