6533b82dfe1ef96bd1291c29
RESEARCH PRODUCT
A direct determination of the proton electron mass ratio
J. TrautG. GräffH. Kalinowskysubject
PhysicsNuclear and High Energy PhysicsTime of flightlawCyclotronCyclotron resonanceElectronAtomic physicsProton-to-electron mass ratioElectron cyclotron resonanceFourier transform ion cyclotron resonanceIon cyclotron resonancelaw.inventiondescription
The cyclotron frequencies of free protons and electrons in a magnetic field of 5.81 Tesla with superimposed electrostatic quadrupole field have been measured. The increase of energy connected with a transition at cyclotron frequency is detected by the measurement of the time of flight through an inhomogeneous magnetic field. From the ratio of the measured cyclotron frequencies of both particles the proton electron mass ratio is deduced. The resultm p /m e =1,836.1527(11) agrees within the limits of error (0.6 ppm) with the value of the indirect determination.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1980-03-01 | Zeitschrift f�r Physik A: Atoms and Nuclei |