Test of global symmetry from multinucleon K^--capture

Abstract

The principle of charge-independence coupled with the unitarity and time-reversibility of the scattering matrix enables one to express the production amplitude of the K^--capture reactions in terms of the scattering phases of the final state interaction. By making impulse type approximation, certain relations between K^-+d and K^-+2N absorption cross-sections are obtained. The experimental data have been analysed on the basis of the global symmetry of strong interactions. It is found thatwithin the limits of our approximation this symmetry is incompatible with the experimental observations.