A comparison of condensate mass of QCD vacuum between Wilson line approach and Schwinger effect *

Abstract

We studied the condensate mass of QCD vacuum through the duality approach via dilaton wall background in the presence of the parameter , which represents the condensation in a holographic set up. First, from Wilson line calculation, we found (i.e., the condensate parameter in mixed non-local condensation), whose behavior mimics that of QCD. The value of that we found by this approach is in agreement with QCD data. Second, we considered the produced mass via the Schwinger effect mechanism in the presence of the parameter . We show that vacuum condensation generally contributes the mass dominantly and that the produced mass via Schwinger effect is suppressed by .

Observation of different scenarios in different temperatures in small and large collision systems

“…Generally, the soft excitation process is distributed in a narrow p T range of less than 2-3 GeV/c or a little more, and mostly light flavor particles are produced in this region. The soft process have many choices of formalisms such as Blast wave model with Boltzmann Gibb's statistics [19][20][21][22], Blast wave model with Tsallis statistics [23][24][25][26],Tsallis pareto-type function [27], Erlang distribution [28][29][30], Scwinger mechanism [31][32][33][34], Hagedorn distribution function [35], Standard distribution [36] etc. The p T region above 3 GeV/c is contributed for the hard process and is described by Quantum chromodynamics (QCD) calculus [37][38][39] or inverse power law which is also known as Hagedron function…”