Penning-Trap Mass Measurement of Helium-4

Sasidharan, S.; Bezrodnova, O.; Rau, S.; Quint , W.; Sturm, S.; Blaum, K.

doi:10.1103/PhysRevLett.131.093201

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Penning-Trap Mass Measurement of Helium-4

MPS-Authors

/persons/resource/persons292016

Sasidharan, S.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons292018

Bezrodnova, O.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons207035

Rau, S.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons31090

Sturm, S.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30312

Blaum, K.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

External Resource

https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.131.093201
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Sasidharan, S., Bezrodnova, O., Rau, S., Quint, W., Sturm, S., & Blaum, K. (2023). Penning-Trap Mass Measurement of Helium-4. Physical Review Letters, 131(9): 093201. doi:10.1103/PhysRevLett.131.093201.

Cite as: https://hdl.handle.net/21.11116/0000-000D-A557-7

Abstract

Light-ion trap (LIONTRAP), a high-precision Penning-trap mass spectrometer, was used to determine the atomic mass of ⁴He. Here, we report a 12 parts-per-trillion measurement of the mass of a ⁴He²⁺ ion, m(⁴He²⁺)=4.001 506 179 651(48) u. From this, the atomic mass of the neutral atom can be determined without loss of precision: m(⁴He)=4.002 603 254 653(48) u. This result is slightly more precise than the current CODATA18 literature value but deviates by 6.6 standard deviations.