Tritium--helium-3 mass difference using the Penning trap mass spectroscopy

Journal Article · Mon May 10 00:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.2888· OSTI ID:6770025

Van Dyck, Jr, R S; Farnham, D L; Schwinberg, P B ^[1]

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1. Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States)

The atomic masses of both [sup 3]H and [sup 3]He have been measured with a Penning trap mass spectrometer that utilizes a frequency-shift detector to observe ion cyclotron resonances. Present resolution exceeds 1 part in 10[sup 9] and is limited only by the stability of the magnetic field. The leading systematic shift (at [approx lt]1 part in 10[sup 10]) is due to the residual quadratic [bold B] field dependence. The atomic masses have been combined to yield [Delta][ital Mc][sup 2]([sup 3]H[minus][sup 3]He)=18 590.1(1.7) eV. The excellent agreement with recent results from [beta] spectrometers lends strong support for new limits on the neutrino's rest mass.

• OSTI ID: 6770025
• Journal Information: Physical Review Letters; (United States), Vol. 70:19; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM 3
MASS DIFFERENCE
TRITIUM
CARBON IONS
CATIONS
CYCLOTRON RESONANCE
EXPERIMENTAL DATA
MAGNETIC FIELDS
MASS SPECTRA
MASS SPECTROSCOPY
NEUTRINOS
PENNING EFFECT
RESOLUTION
SPECTRAL SHIFT
TRAPS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHARGED PARTICLES
DATA
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
HELIUM ISOTOPES
HYDROGEN ISOTOPES
INFORMATION
IONS
ISOTOPES
LEPTONS
LIGHT NUCLEI
MASSLESS PARTICLES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
PARTICLE PROPERTIES
RADIOISOTOPES
RESONANCE
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES
664400* - Experimentally Derived Information on Atomic & Molecular Properties- (1992-)