EVIDENCE ON THE ISOMINKOWSKIAN CHARACTER OF THE HADRONIC STRUCTURE

We review the available conceptual, theoretical and experimental evide nce according to which physical media in general, with particular refe rence to the hyperdense media in the interior of hadrons, alter the Mi nkowskian spacetime with local speeds of light which are generally sub luminal for media of low density (such as planetary atmospheres), and superluminal for media of high density (such as hadrons). We show that the isominkowskian geometry can provide the only known geometrization of the spacetime of physical media which is: (1) universal, in the se nse of applying for all possible signature-preserving spacetimes; (2) direct, in the sense of holding within the given inertial frame of the observer for all possible spacetimes; (3) invariant, in a way equival ent to that of the conventional spacetime; (4) axiom-preserving, thus permitting the preservation of the axioms of the special relativity an d their extension to arbitrary speeds; and (5) an agreement with the a vailable preliminary experimental data. Specific experiments are discu ssed in detail for the resolution of the still open problems of the sp acetime and related basic laws holding in the interior of the hyperden se hadrons.