Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2021 Aug 13;127(7):072502.
doi: 10.1103/PhysRevLett.127.072502.

Direct Q-Value Determination of the β^{-} Decay of ^{187}Re

P Filianin  1 , C Lyu  1 , M Door  1 , K Blaum  1 , W J Huang  2 , M Haverkort  3 , P Indelicato  4 , C H Keitel  1 , K Kromer  1 , D Lange  1 , Y N Novikov  5   6 , A Rischka  7 , R X Schüssler  1 , Ch Schweiger  1 , S Sturm  1 , S Ulmer  8 , Z Harman  1 , S Eliseev  1
Affiliations

Direct Q-Value Determination of the β^{-} Decay of ^{187}Re

P Filianin et al. Phys Rev Lett. .

Abstract

The cyclotron frequency ratio of ^{187}Os^{29+} to ^{187}Re^{29+} ions was measured with the Penning-trap mass spectrometer PENTATRAP. The achieved result of R=1.000 000 013 882(5) is to date the most precise such measurement performed on ions. Furthermore, the total binding-energy difference of the 29 missing electrons in Re and Os was calculated by relativistic multiconfiguration methods, yielding the value of ΔE=53.5(10) eV. Finally, using the achieved results, the mass difference between neutral ^{187}Re and ^{187}Os, i.e., the Q value of the β^{-} decay of ^{187}Re, is determined to be 2470.9(13) eV.

PubMed Disclaimer

LinkOut - more resources