D-meson diffusion in hadronic matter

FAIR NExt generation of ScientistS 2013

Torres-Rincon, Juan M.^1 ; Abreu, Luciano M.^2 ; Cabrera, Daniel^3 ; Llanes-Estrada, Felipe J.^4 ; Tolos, Laura^1,3

Institut de Ciències de l'Espai (IEEC/CSIC), Campus Universitat Autònoma de Barcelona, Facultat de Ciències, Torre C5, E-08193 Bellaterra, Spain^1

Instituto de Física, Universidade Federal da Bahia, 40210-340, BA Salvador, Brazil^2

Frankfurt Institute for Advances Studies, Johann Wolfgang Goethe University, Ruth-Moufang-Strasse 1, 60438 Frankfurt am Main, Germany^3

Departamento de Física Téorica i, Universidad Complutense, Madrid 28040, Spain^4

关键词: Combined effect;    D-mesons;    Drag forces;    Effective field theory;    Finite temperatures;    Hadronic matters;    Quark-gluon plasma;    Transport coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/503/1/012020/pdf
DOI  :  10.1088/1742-6596/503/1/012020

来源: IOP

【 摘 要 】

We present effective-field-theory results with unitarized interactions on the D-meson transport coefficients in a gas populated by light mesons and baryons at finite temperature and baryochemical potential. The Fokker-Planck equation is used to compute the drag force, the relaxation time and the diffusion coefficients of D mesons for collisions at FAIR. At finite baryochemical potential, the combined effect of net baryonic density and sizable meson-baryon interaction makes the D mesons to relax more efficiently than in the μB0 case. We also describe the connection with the quark-gluon plasma phase in adiabatic trajectories on the phase diagram at both zero and finite baryochemical potential.