International Journal of Theoretical Physics

, Volume 12, Issue 5, pp 299–320 | Cite as

Crossing relations derived from (Extended) Relativity

  • R. Mignani
  • E. Recami


Recently, Special Relativity has been straightforwardly extended to Superluminal inertial frames and faster-than-light objects. The ‘Extended Relativity’ theory not only allowed building up a self-consistent ‘classical theory’ of tachyons, but reveals itself useful also for the understanding of standard (subluminal) physics, i.e. of usual particles. In this paper, it is shown that Extended Relativity allows: (i) deriving the usual ‘Crossing Relations’ of elementary particle (high-energy) physics; and (ii) deriving the CPT-covariance theorem as a particular case of G-covariance (i.e., covariance under the new group of Generalised Lorentz transformations, both subluminal and Superluminal).

In this framework, the ‘Analyticity’ postulate is unnecessary: it is better substituted by the G-covariance requirement.

Moreover, new ‘crossing-type’ relations are predicted on the basis of mere Extended Relativity. They may well serve as a test for relativistic covariance of ‘force fields’ like strong interactions and, particularly, weak interactions, and possible new ‘interaction fields’ (whicha priori are not relativistically covariant).


Covariance Field Theory Elementary Particle Quantum Field Theory Strong Interaction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • R. Mignani
    • 1
    • 2
  • E. Recami
    • 1
    • 2
  1. 1.Istituto di Fisica TeoricaUniversità di CataniaCataniaItaly
  2. 2.Istituto Nazionale di Fisica NucleareSezione di Catania. Centro Siciliano di Fisica Nucleare e di Struttura della MateriaCatania

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