Atomic masses of S 32 , 33 , Kr 84 ,</mml:mo…
2005; American Physical Society; Volume: 72; Issue: 2 Linguagem: Inglês
10.1103/physreva.72.022510
ISSN1538-4446
AutoresWei Shi, Matthew Redshaw, E. G. Myers,
Tópico(s)Astronomical and nuclear sciences
ResumoThe atomic masses of $^{32}\mathrm{S}$, $^{84,86}\mathrm{Kr}$, and $^{129,132}\mathrm{Xe}$ have been measured by comparing cyclotron frequencies of single ions in a Penning trap. The results (with one standard deviation uncertainties) are $M(^{32}\mathrm{S})=31.972\phantom{\rule{0.2em}{0ex}}071\phantom{\rule{0.2em}{0ex}}173\phantom{\rule{0.2em}{0ex}}5(16)$, $M(^{84}\mathrm{Kr})=83.911\phantom{\rule{0.2em}{0ex}}497\phantom{\rule{0.2em}{0ex}}770\phantom{\rule{0.2em}{0ex}}5(50)$, $M(^{86}\mathrm{Kr})=85.910\phantom{\rule{0.2em}{0ex}}610\phantom{\rule{0.2em}{0ex}}672\phantom{\rule{0.2em}{0ex}}2(84)$, $M(^{129}\mathrm{Xe})=128.904\phantom{\rule{0.2em}{0ex}}780\phantom{\rule{0.2em}{0ex}}960(10)$, and $M(^{132}\mathrm{Xe})=131.904\phantom{\rule{0.2em}{0ex}}155\phantom{\rule{0.2em}{0ex}}190\phantom{\rule{0.2em}{0ex}}7(92)$. Combining our mass of $^{32}\mathrm{S}$ with the high-precision mass difference between $^{33}\mathrm{S}^{+}$ and $^{32}\mathrm{S}{\mathrm{H}}^{+}$ obtained by Rainville et al. [submitted to Nature], we also obtain $M(^{33}\mathrm{S})=32.971\phantom{\rule{0.2em}{0ex}}458\phantom{\rule{0.2em}{0ex}}908\phantom{\rule{0.2em}{0ex}}7(16)$. These results are more precise than previous data by factors of 13 to 600.
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