Titre du document

Implications of parity nonconservation and time reversal noninvariance in electromagnetic interactions

Lien vers le document
Nom du Corpus


  • Mendel Sachs
  • Lockheed Missiles and Space Division Research Laboratory, Palo Alto, California USA

The requirement of the relativistic invariance of physical phenomena is expressed mathematically by requiring an invariance under the transformations of the proper Lorentz group. Included in the class of interactions which would satisfy this requirement are those which are odd with respect to space reflections and time reversal, and therefore violate both parity conservation and time reversal invariance. This property is exploited in the construction of a theory which sacrifices P and T invariance for symmetry in the electric and magnetic field variables in electromagnetic interactions with charged spin one-half particles. The theory is constructed by generalizing the electromagnetic four-potential so as to include a pseudovector part as well as a vector part. Due to the modification of the interaction Lagrangian by the pseudovector potential, an extra pseudovector force is introduced from the equations of motion, which effectively reverses the roles of the electric and magnetic field variables in the normal vector Lorentz force.A qualitative discussion of atomic spectra is given in the light of the present theory. A dimensionless number ? which multiplies the pseudovector potential and is a measure of the amount of violation of P and T in electromagnetic interaction is found to be less than 10?13 to insure compatibility with experimental data. It is pointed out that the effects of this theory are optimized when applied to bound state systems which are subjected to electric fields which lack an inversion center. A few experiments utilizing this results are proposed.

Langue(s) du document
Année de publication

Annals of Physics

Type de publication
Type de document
Présence de XML structuré
Version de PDF
Score de qualité du texte
Nom du concept
  • Magnetic monopole
Catégories Science-Metrix
  • 1 - natural sciences ; 2 - physics & astronomy ; 3 - nuclear & particles physics
Catégories Inist
  • 1 - sciences appliquees, technologies et medecines ; 2 - sciences exactes et technologie ; 3 - terre, ocean, espace ; 4 - geophysique externe
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Physics and Astronomy ; 3 - General Physics and Astronomy
Catégories WoS
  • 1 - science ; 2 - physics, multidisciplinary
Identifiant ISTEX
Powered by Lodex 9.4.5