English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A new spinning particle with a definite sign of the energy is defined onspacelike hypersurfaces after a critical discussion of the standard spinningparticles. They are the pseudoclassical basis of the positive energy $({1\over2},0)$ [or negative energy $(0,{1\over 2})$] parts of the $({1\over 2},{1\over2})$ solutions of the Dirac equation. The study of the isolated system of Nsuch spinning charged particles plus the electromagnetic field leads to theirdescription in the rest-frame Wigner-covariant instant form of dynamics on theWigner hyperplanes orthogonal to the total 4-momentum of the isolated system(when it is timelike). We find that on such hyperplanes these spinningparticles have a nonminimal coupling only of the type "spin-magnetic field"like the nonrelativistic Pauli particles to which they tend in thenonrelativistic limit. The Lienard-Wiechert potentials associated with thesecharged spinning particles are found. Then, a comment on how to quantize thespinning particles respecting their fibered structure describing the spinstructure is done.Comment: 70 pages, revte

SPINNING PARTICLES ON SPACELIKE HYPERSURFACES AND THEIR REST FRAME DESCRIPTION