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- W3025474196 abstract "In this paper, we revisit the two theoretical approaches for the formulation of the tachyonic Dirac equation. The first approach works within the theory of restricted relativity, starting from a Lorentz invariant Lagrangian consistent with a spacelike four-momentum. The second approach uses the theory of relativity extended to superluminal motions and works directly on the ordinary Dirac equation through superluminal Lorentz transformations. The equations resulting from the two approaches show mostly different, if not opposite, properties. In particular, the first equation violates the invariance under the action of the parity and charge conjugation operations. Although it is a good mathematical tool to describe the dynamics of a space-like particle, it also shows that the mean particle velocity is subluminal. In contrast, the second equation is invariant under the action of parity and charge conjugation symmetries, but the particle it describes is consistent with the classical dynamics of a tachyon. This study shows that it is not possible with the currently available theories to formulate a covariant equation that coherently describes the neutrino in the framework of the physics of tachyons, and depending on the experiment, one equation rather than the other should be used." @default.
- W3025474196 created "2020-05-21" @default.
- W3025474196 creator A5013019162 @default.
- W3025474196 date "2020-05-14" @default.
- W3025474196 modified "2023-09-25" @default.
- W3025474196 title "Tachyonic Dirac Equation Revisited" @default.
- W3025474196 doi "https://doi.org/10.20944/preprints202005.0236.v1" @default.
- W3025474196 hasPublicationYear "2020" @default.
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