Study of transverse momentum distribution of charged particles in 4.5 GeV/c proton-emulsion interactions

Abstract

The emission of charged particles in 4.5 GeV/c proton-emulsion interactions were investigated. The emulsion plates have been irradiated at Dubna Synchrophasotron‥ The experimental data were obtained at the Laboratory of High Energy Physics (LHEP) at Cairo University. Transverse momentum technique has been used to check the sideward flow of charged particles in the considered reactions. The reaction plane has been determined in each event and the transverse momentum (the momentum component in the azimuthal plane) was projected onto the reaction plane. The dependence of the average-oriented transverse momentum per charged particles, projected onto the reaction plane, on the pseudorapidity were studied. The present work shows a significant sideward flow of charged particles in the region of large pseudorapidity i.e. small values of the space angle (forward cone). The side ward flow of nuclear matter seems to be as a result of the interaction between any two composite particles. A correlation is seen between the direction of flow of the charged particles and the emitted heavy ionized target fragments in proton-emulsion interactions at 4.5 GeV/c.