English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The atomic mass of uranium-238 has been determined to be$238.050\,787\,618(15)\,\text{u}$, improving the literature uncertainty by twoorders of magnitude. It is obtained from a measurement of the mass ratio of$^{238}$U$^{47+}$ and $^{132}$Xe$^{26+}$ ions with an uncertainty of $3.5\times10^{-12}$. The measurement was carried out with the Penning-trap massspectrometer \textsc{Pentatrap} and was accompanied by a calculation of thebinding energies $E_{\text{U}}$ and $E_{\text{Xe}}$ of the 47 and 26 missingelectrons of the two highly charged ions, respectively. These binding energieswere determined using an \textit{ab initio} multiconfigurationDirac-Hartree-Fock (MCDHF) method to be $E_{\text{U}} = 39\,927(10)\,\text{eV}$and $E_{\text{Xe}} = 8\,971.2(21)\,\text{eV}$. The new mass value will serve asa reference for high-precision mass measurements in the heavy mass region ofthe nuclear chart up to transuranium nuclides.

Atomic mass determination of uranium-238