Kinematical fit and channel separation in np experiment

The method of channels separation in particle-particle collisions is presented. The kinematical fit and weights for tracks combinations are used. The Kolmogorov criterion is applied to check agreement between experimental and theoretical χ2 distributions. The investigations were made for data of np experiment in LHEP (JINR, Dubna) and for pp collisions in GSI (Darmstadt, Germany)

3π and 4π meson production in np interactions at intermediate energies

The study of 3π and 4π meson production in np interactions was carried out at the momenta of incident neutrons P0 = 3.83, 4.42 and 5.20 GeV/c. The characteristics of the reactions were satisfactorily described by OPER model. For the better description of the reaction np → ppπ+ π− π− π0 it was necessary to take into account the production of η0 and ω0 mesons

3π and 4π meson production in np interactions at intermediate energies

The study of 3π and 4π meson production in np interactions was carried out at the momenta of incident neutrons P0 = 3.83, 4.42 and 5.20 GeV/c. The characteristics of the reactions were satisfactorily described by OPER model. For the better description of the reaction np → ppπ+ π− π− π0 it was necessary to take into account the production of η0 and ω0 mesons