Heavy mesons in a hadronic medium: interaction and transport coefficients

15th International Conference on Strangeness in Quark Matter

Torres-Rincon, J.M.^1 ; Abreu, L.M.^2 ; Cabrera, D.^3 ; Romanets, O.^4 ; Tolos, L.^3,5

Subatech, UMR 6457, IN2P3/CNRS, Université de Nantes, Ècole de Mines de Nantes, 4 rue Alfred Kastler, Nantes

44307, France^1

Instituto de Fí

sica, Universidade Federal da Bahia, BA, Salvador

40210-340, Brazil^2

Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe University, Ruth-Moufang-Strasse 1, Frankfurt am Main

60438, Germany^3

KVI, University of Groningen, Zernikelaan 25, Groningen

9747AA, Netherlands^4

Instituto de Ciencias Del Espacio (IEEC/CSIC), Campus UAB Carrer de Can Magrans S/n, Cerdanyola del Valles

08193, Spain^5

关键词: Dense medium;    Effective field theory;    Fokker Planck;    Guiding principles;    Hadronic matters;    Heavy-quark;    Resonant contribution;    Transport coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012091/pdf
DOI  :  10.1088/1742-6596/668/1/012091

来源: IOP

【 摘 要 】

We review the recent results of heavy meson diffusion in thermal hadronic matter. The interactions of D and B mesons with other hadrons (light mesons and baryons) are extracted from effective field theories based on chiral and heavy-quark symmetries. When these guiding principles are combined with exact unitarity, physical values of the cross sections are obtained. These cross sections (which contain resonant contributions) are used to calculate the drag and diffusion coefficients of heavy mesons immersed in a thermal and dense medium. The transport coefficients are computed using a Fokker-Planck reduction of the Boltzmann equation.