6533b7d5fe1ef96bd126455b
RESEARCH PRODUCT
A direct determination of the proton-electron mass ratio
Eberhard KlemptG. Gärtnersubject
PhysicsNuclear and High Energy PhysicsNuclear TheoryCyclotronCyclotron resonanceElectronProton-to-electron mass ratioFourier transform ion cyclotron resonanceElectron cyclotron resonancelaw.inventionNuclear physicslawQuadrupolePhysics::Accelerator PhysicsAtomic physicsIon cyclotron resonancedescription
The cyclotron resonance of protons and electrons in a magnetic field of 5.7 Tesla produced by a superconducting solenoid has been measured. Protons and electrons were alternately confined in an electrostatic quadrupole trap. The quotient of the cyclotron frequencies provides a first direct determination of the proton-electron mass ratio. The result ofM p /M e =1836.1502(53) agrees with other more precise but indirect determinations of this quantity.
year | journal | country | edition | language |
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1978-03-01 | Zeitschrift f�r Physik A: Atoms and Nuclei |