6533b855fe1ef96bd12afe30
RESEARCH PRODUCT
High-precision measurement of the proton's atomic mass
Anke KrackeA. MooserStefan UlmerJ. HouFabian HeißeG. WerthS. JunckSven SturmSascha RauFlorian Köhler-langesKlaus BlaumWolfgang Quintsubject
PhysicsProtonAtomic Physics (physics.atom-ph)General Physics and AstronomyFOS: Physical sciences01 natural sciencesAtomic massStandard deviationPhysics - Atomic Physics010305 fluids & plasmasNuclear physicsAtomic mass constant0103 physical sciencesAtomic physicsPräzisionsexperimente - Abteilung Blaum010306 general physicsdescription
We report on the precise measurement of the atomic mass of a single proton with a purpose-built Penning-trap system. With a precision of 32 parts-per-trillion our result not only improves on the current CODATA literature value by a factor of three, but also disagrees with it at a level of about 3 standard deviations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-07-18 |