TY - JOUR
ID - 190
TI - Collisional and Radiative Energy Loss in QED and QCD Plasmas
JO - Iranian Journal of Astronomy and Astrophysics
JA - IJAA
LA - en
SN - 2322-4924
AU - Sheibani, Javad
AU - Mirjalili, Abolfazl
AU - Javidan, Kurosh
AU - Gharaei, Reza
AU - Atashbar Tehrani, Shahin
AD - Physics Department, Yazd University
AD - Physics Department, School of Science, Ferdowsi University of Mashhad, Mashhad, Iran
AD - Physics Department, Hakim Sabzevari University
AD - School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM),
Y1 - 2020
PY - 2020
VL - 7
IS - 2
SP - 99
EP - 106
KW - Energy loss
KW - QCD plasma
KW - QED plasma
KW - Fokker-Planck equation
KW - Drag coefficient
KW - diffusion Coefficient
DO - 10.22128/ijaa.2020.426.1090
N2 - Evaluating the energy loss of an electrically (color) charged particle crossing a high-temperature QED (QCD) plasma at its thermal equilibrium is studied. The average energy loss depends on the particle characteristics, plasma parameters, and QED (QCD) coupling constant alpha (alpha s). All processes through which the energy of a particle changes can be categorized into two main mechanisms: elastic collisions and radiation through bremsstrahlung. We have introduced the final results of collisional and radiation energy loss for an electrically charged particle in a QED plasma, as well as a quark in a QCD plasma. The suppression due to radiation is presented using the Landau-Pomeranchuk-Migdal effect. Time evolution of particle distribution functions has been evaluated numerically through the Fokker-Planck equation. We have calculated the drag and diffusion coefficients using the collisional and radiation energy loss definitions. outcomes of different presented relations are different. We have compared differences and similarities in evolution of distribution functions.
UR - https://ijaa.du.ac.ir/article_190.html
L1 - https://ijaa.du.ac.ir/article_190_ee3090018a2c35441fe0cfd1ddfcf16b.pdf
ER -