2001/11/30 by A. Majumder, Abhijit Majumder, C. Gale +1 · 24 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Boson #Formalism (music) #Gluon #Gravitational singularity #High-Energy Particle Collisions Research #Infrared #Invariant (physics) #Invariant mass #Mathematical physics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Quark #Quark–gluon plasma #Self-energy #Thermal quantum field theory #Vector boson #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.65.055203
published in Physical Review C 65(5) (American Institute of Physics) · references added, typos corrected, slightly abridged, version accepted for publication in Phys. Rev. C
arxiv created 2002/02/28 · openalex publication_date 2002/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We calculate the imaginary part of the retarded two-loop self-energy of a static vector boson in a plasma of quarks and gluons at a temperature T, using the imaginary time formalism. We recombine the various cuts of the self-energy to generate physical processes. We demonstrate how cuts containing loops may be reinterpreted in terms of interference between the O(\ensuremathα) tree diagrams and the Born term along with spectators from the medium. We apply our results to the rate of dilepton production in the limit of dilepton invariant mass E\ensuremath≫T. We find that all infrared and collinear singularities cancel in the final result obtained in this limit.