Signal of Dynamical Long-Range Rapidity Correlation among Pions in Ultra-Relativistic Nuclear Interactions

Abstract: This paper reports an investigation on the two-particle long - range rapidity correlation among the pions produced in O?AgBr interactions at 60 AGeV and S?AgBr interactions at 200 AGeV. The experimental results have been compared with those of Monte Carlo simulated events to extract dynamical correlation. The data show two-particle long-range correlation among the pions in rapidity space at both the energies.