Loop-tree duality and quantum field theory in four dimensions

Loop-tree duality allows to express virtual contributions in terms of phase-space integrals, thus leading to a direct comparison with real radiation terms. In this talk, we review the basis of the method and describe its application to regularize Feynman integrals. Performing an integrand-level comb...

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Autor principal: Sborlini, G.F.R.
Formato: CONF
Materias:
Forestry
High energy physics
Phase space methods
Feynman integrals
Four dimensions
ITS applications
Physical interpretation
Quantum field theory
Computation theory
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_18248039_v_n_p_Sborlini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_18248039_v_n_p_Sborlini
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spelling todo:paper_18248039_v_n_p_Sborlini2023-10-03T16:33:10Z Loop-tree duality and quantum field theory in four dimensions Sborlini, G.F.R. Forestry High energy physics Phase space methods Feynman integrals Four dimensions ITS applications Physical interpretation Quantum field theory Computation theory Loop-tree duality allows to express virtual contributions in terms of phase-space integrals, thus leading to a direct comparison with real radiation terms. In this talk, we review the basis of the method and describe its application to regularize Feynman integrals. Performing an integrand-level combination of real and virtual terms, we obtain finite contributions that can be computed in four-dimensions. Moreover, this method provides a natural physical interpretation of infrared singularities, their origin and the way that they cancel in the complete computation. © Copyright owned by the author(s). CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_18248039_v_n_p_Sborlini
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Forestry
High energy physics
Phase space methods
Feynman integrals
Four dimensions
ITS applications
Physical interpretation
Quantum field theory
Computation theory
spellingShingle Forestry
High energy physics
Phase space methods
Feynman integrals
Four dimensions
ITS applications
Physical interpretation
Quantum field theory
Computation theory
Sborlini, G.F.R.
Loop-tree duality and quantum field theory in four dimensions
topic_facet Forestry
High energy physics
Phase space methods
Feynman integrals
Four dimensions
ITS applications
Physical interpretation
Quantum field theory
Computation theory
description Loop-tree duality allows to express virtual contributions in terms of phase-space integrals, thus leading to a direct comparison with real radiation terms. In this talk, we review the basis of the method and describe its application to regularize Feynman integrals. Performing an integrand-level combination of real and virtual terms, we obtain finite contributions that can be computed in four-dimensions. Moreover, this method provides a natural physical interpretation of infrared singularities, their origin and the way that they cancel in the complete computation. © Copyright owned by the author(s).
format CONF
author Sborlini, G.F.R.
author_facet Sborlini, G.F.R.
author_sort Sborlini, G.F.R.
title Loop-tree duality and quantum field theory in four dimensions
title_short Loop-tree duality and quantum field theory in four dimensions
title_full Loop-tree duality and quantum field theory in four dimensions
title_fullStr Loop-tree duality and quantum field theory in four dimensions
title_full_unstemmed Loop-tree duality and quantum field theory in four dimensions
title_sort loop-tree duality and quantum field theory in four dimensions
url http://hdl.handle.net/20.500.12110/paper_18248039_v_n_p_Sborlini
work_keys_str_mv AT sborlinigfr looptreedualityandquantumfieldtheoryinfourdimensions
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