About a possibility to study the diffraction dissociation on the vertex detector spectrometer

A new cluster method for separating the diffractions dissociation processes is described. The matrix of angles between momenta of secondary particles in the centre-of-mass system is used in this method. The so-called minimal spanning tree (MST) is being built which are a minimal distance between geodesics on a unit sphere connecting the secondary particles. Separation into clusters goes via breaking the longest distance in MST. To investigate a possibility of applying the method for the magnetic spectrometer with vertex detector the diffraction dissociation events generated by the Monte Carlo method transmit the set up. The average efficiency of separating the single dissociation processes turned out to be more than 90%. This evidences in favour of a possibility to apply the method in experiments on the magnetic spectrometer with vertex detector. 6 refs.; 4 figs.; 1 tab