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Author
Plenter, J.
;
Rodrigo, G.
Title
Asymptotic expansions through the loop-tree duality
Type
Journal Article
Year
2021
Publication
European Physical Journal C
Abbreviated Journal
Eur. Phys. J. C
Volume
81
Issue
4
Pages
320 - 13pp
Keywords
Abstract
Asymptotic expansions of Feynman amplitudes in the loop-tree duality formalism are implemented at integrand-level in the Euclidean space of the loop three-momentum, where the hierarchies among internal and external scales are well-defined. The ultraviolet behaviour of the individual contributions to the asymptotic expansion emerges only in the first terms of the expansion and is renormalized locally in four space-time dimensions. These two properties represent an advantage over the method of Expansion by Regions. We explore different approaches in different kinematical limits, and derive explicit asymptotic expressions for several benchmark configurations.
Address
[Plenter, Judith; Rodrigo, German] Univ Valencia, Inst Fis Corpuscular, CSIC, Parc Cient, Valencia 46980, Spain, Email: plenter@ific.uv.es;
Corporate Author
Thesis
Publisher
Springer
Place of Publication
Editor
Language
English
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
1434-6044
ISBN
Medium
Area
Expedition
Conference
Notes
WOS:000641475900003
Approved
no
Is ISI
yes
International Collaboration
no
Call Number
IFIC @ pastor @
Serial
4810
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