Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Theoretical Investigation of Subluminal Particles Endowed with Imaginary Mass

Version 1 : Received: 29 May 2021 / Approved: 31 May 2021 / Online: 31 May 2021 (11:22:17 CEST)

A peer-reviewed article of this Preprint also exists.

Nanni, L. Theoretical Investigation of Subluminal Particles Endowed with Imaginary Mass. Particles 2021, 4, 325-332. Nanni, L. Theoretical Investigation of Subluminal Particles Endowed with Imaginary Mass. Particles 2021, 4, 325-332.

Journal reference: Particles 2021, 4, 27
DOI: 10.3390/particles4020027

Abstract

In this article, the general solution of the tachyonic Klein-Gordon equation is obtained as a Fourier integral performed on a suitable path in the complex \omega-plane. In particular, it is proved that under given boundary conditions this solution does not contain any superluminal components. On the basis of this result, we infer that all possible spacelike wave equations describe the dynamics of subluminal particles endowed with imaginary mass. This result is validated for the Chodos equation, used to describe the hypothetical superluminal behaviour of neutrino. In this specific framework, it is proved that the wave packet propagates in spacetime with subluminal group velocities and that for enough small energies it behaves as a localized wave.

Subject Areas

tachyons; Klein-Gordon equation; tachyon-like Dirac equation; relativistic wave packet

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