Energy Dependence of Anti-kaon-to-Kaon Ratio in High-energy Collisions --- A Simulated Study

Abstract

A detailed study of energy dependence of K − K + ratio has been carried out in nucleus-nucleus (AA) collisions (Pb+Pb collisions at √ s N N = 6.3 GeV and 17.3 GeV, Au+Au collisions at √ s N N = 19.6-200 GeV) and in pp collisions at √ s = 6.3-200 GeV in the framework of UrQMD and DPMJET III models. It has been observed that as energy increases, the K − K + ratio increases systematically for both nucleus-nucleus and pp collisions. A comparison of our analysis with the analysis of the experimental data has also been presented wherever available. Our analysis is well-supported by the experimental results obtained by different collaborations in different times.

A Comparative Study of K±/π± Ratio in Proton-Proton Collisions at Different Energies: Experimental Results versus Model Simulation

“…Very recently we have studied the energy dependence of 𝐾 − 𝐾 + ratio in pp collisions at √𝑠 =6.3-200GeV successfully using the DPMJET III model [33]. These studies [31][32][33] Table 3 represents the values of total kaon to pion multiplicity ratio…”

“…In another paper Bopp et al[32] compared the DPMJET III model with pp collisions data at √ =200GeV from PHOBOS collaboration for the pseudo-rapidity distribution of charged hadrons. Very recently we have studied the energy dependence of − + ratio in pp collisions at √ =6.3-200GeV successfully using the DPMJET III model[33]. These studies[31][32][33] establish the feasibility of applying DPMJET III model in pp collisions.…”

“…Very recently we have studied the energy dependence of − + ratio in pp collisions at √ =6.3-200GeV successfully using the DPMJET III model[33]. These studies[31][32][33] establish the feasibility of applying DPMJET III model in pp collisions. Another important point in this study is the selection of energy range.…”