Authors:	Kromin, Sascha Schwanemann, Niklas Weinzierl, Stefan
Title:	Amplitudes within causal loop-tree duality
Online publication date:	3-May-2023
Year of first publication:	2022
Language:	english
Abstract:	We study scalar one-loop amplitudes in massive ϕ 3-theory within causal loop-tree duality. We derive a recurrence relation for the integrand of the amplitude. The integrand is by construction free of spurious singularities on H-surfaces. Taking renormalization and contour deformation into account, we obtain the (integrated) amplitude by Monte Carlo integration. We have checked up to seven points that our results agree with analytic results.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8893
Version:	Published version
Publication type:	Zeitschriftenaufsatz
Document type specification:	Scientific article
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Physical review D 106
Pages or article number:	076006
Publisher:	American Institute of Physics
Publisher place:	Melville, NY
Issue date:	2022
ISSN:	2470-0029
Publisher DOI:	10.1103/physrevd.106.076006
Appears in collections:	DFG-491381577-H