2014/08/21 by Vitalii Ozvenchuk, V. Ozvenchuk, Juan M. Torres-Rincon +11 · 1 citation
Mathematics · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Markov Chains and Monte Carlo Methods #Nuclear Theory (nucl-th) #Stochastic processes and statistical mechanics #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.1408.4938
10 pages, 8 figures
openalex publication_date 2014/08/21 · arxiv created 2014/08/28 · arxiv updated 2014/08/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We employ recently published cross sections for D-mesons with hadrons and calculate the drag and diffusion coefficients of D-mesons in hadronic matter as a function of the momentum of D-mesons as well as of the temperature of the medium. Calculating in our approach the spatial diffusion coefficient, Dx, at zero chemical potential we see a very smooth transition between our calculations for the hadron gas and the lattice QCD calculations. Applying the results for the transport coefficients of D-mesons in a Fokker-Planck equation, which describes the evolution of D-mesons during the expansion of a hadron gas created in ultrarelativistic heavy-ion collisions, we find that the value of RAA is little influenced by hadronic rescattering, whereas in the elliptic flow the effects are stronger. We extend our calculations to the finite chemical potentials and calculate the spatial diffusion coefficients of D-mesons propagating through the hadronic medium following isentropic trajectories, appropriate at future FAIR and NICA heavy-ion experiments. For the isentropic trajectory with s/ρB\rm net=20 we find a perfect matching of results for D-mesons in hadronic matter and for charm quarks in partonic matter treated within the DQPM approach.