Cutting rules at finite temperature
P. F. Bedaque, A. Das, S. Naik
Abstract
We discuss the cutting rules in the real time approach to finite temperature field theory and show the existence of cancellations among classes of cut graphs which allows a physical interpretation of the imaginary part of the relevant amplitude in terms of underlying microscopic processes. Furthermore, with these cancellations, any calculation of the imaginary part of an amplitude becomes much easier and completely parallel to the zero temperature case.
Create a lesson
Related papers
From Axion Detection to Dark Matter Astronomy
Jae Hyeok Chang, Stefano Profumo
Spurious Singularities in Dipole Subtraction Cross Sections and their Damping with Convergence Factors
Michael H. Seymour, Andrzej Siódmok, James Whitehead
Radiative transitions of hybrid mesons
Shahriyar Jafarzade, Eric S. Swanson
DUNE Beam-Energy Dependence of Sensitivity to the Violation of the Equivalence Principle
Monjowara Khatun, Debajyoti Dutta
Modified hydrogen recombination rate due to non-Hubble redshift effects
I. V Krasnov, N. S. Nedelko
Probing the Axion--Photon--Dark Photon Interaction with LHC Mono-Photons and Fermi-LAT Gamma-Ray Lines
Chuan-Ren Chen, Takaaki Nomura, Van Que Tran