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SUMMARY:Numerical Loop-Integration Methods for Finite Temperature Effects
in QCD Sum Rules
DTSTART;VALUE=DATE-TIME:20210209T214500Z
DTEND;VALUE=DATE-TIME:20210209T220000Z
DTSTAMP;VALUE=DATE-TIME:20240810T233847Z
UID:indico-contribution-1790@nyx.physics.mcgill.ca
DESCRIPTION:Speakers: Siyuan Li (University of Saskatchewan)\nThermal fiel
d theory is the extension of quantum field theory to a non-zero temperatur
e environment and is achieved by modifying the propagators in loop integra
tions represented by Feynman diagrams. The program package pySecDec is des
igned to numerically calculate dimensionally-regularized loop integrals in
quantum field theory using the sector decomposition approach. It is shown
how pySecDec can be applied to thermal field theory numerical calculation
using modifications within the Matsubara formalism. Using the formulated
algorithm\, a 2-point correlation function (such as those occurring in QC
D correlation functions) at finite temperature can be numerically calcula
ted for a variety of spacetime dimensions. The topologies of the Feynman d
iagrams that the algorithm is targeting would occur in QCD sum rules.\n\nh
ttps://nyx.physics.mcgill.ca/event/253/contributions/1790/
LOCATION:Virtual Meeting
URL:https://nyx.physics.mcgill.ca/event/253/contributions/1790/
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