NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Sakata-Taketani spin-0 theory with external field interactions - Lagrangian formalism and causal propertiesTo illustrate that a relativistic field theory need not be manifestly covariant, Lorentz-invariant Lagrangian densities are constructed that yield the equation satisfied by an interacting (two-component) Sakata-Taketani spin-0 field. Six types of external field couplings are considered, two scalars, two vectors, an antisymmetric second-rank tensor, and a symmetric second-rank tensor, with the results specialized to electromagnetic interactions. For either of the two second-rank couplings, the equation is found to describe noncausal wave propagation, a property that is apparent from the dependence of the coefficients of the space derivatives on the external field; in contrast, the noncausality of the corresponding manifestly covariant Duffin-Kemmer-Petiau spin-0 equation is not so obvious. The possibilities for generalizing the results to higher spin theories involving only the essential 2(2J + 1) components for a particle with a definite spin J and mass m are discussed in considerable detail.
Document ID
19780028693
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Guertin, R. F.
(Rice University Houston, Tex., United States)
Wilson, T. L.
(NASA Johnson Space Center; Rice University Houston, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
April 1, 1977
Publication Information
Publication: Annals of Physics
Volume: 104
Subject Category
Nuclear And High-Energy Physics
Accession Number
78A12602
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available