Perspective Chapter: EPR Paradox – Experimental and Quantum Field Theoretical Status of Light Meson Resonances

Abstract

The inclusive reaction of the V-meson resonance production is studied in order to check consistency of the field-theoretical approach with formulation based on the Einstein-Podolsky-Rosen (EPR) concepts. For this aim we have constructed the relativistic field-theoretical amplitudes of the V-meson resonance decay 1+2←V with structureless (pointlike) and composite (non-pointlike) resonance. Nonlocal composite states of a resonance are obtained using quark-gluon degrees of freedom in accordance with quantum chromodinamics (QCD). Particle 1 and 2 have opposite momentums p1=−p2 and strongly correlated spin states in the rest frame of V-meson decay. Moreover, for electron-positron decay of the V-meson resonance, electron and positron have the opposite helicity if the electron mass is neglected. Therefore, the decay of V-meson into two particles can be considered as the formation of the EPR-pair according to EPR gedanken experiment. In addition, the color quark-gluon states can be interpreted as hidden (non-observed) states within EPR formulation. As an example of such an approaches, we have considered papers with high-energy experimental data where for description of observable was used quark-antiquark states and concepts of EPR pairs and entanglement.