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On the singular behaviour of scattering amplitudes in quantum field theory

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On the singular behaviour of scattering amplitudes in quantum field theory

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dc.contributor.author	Buchta, Sebastian
dc.contributor.author	Chachamis, Grigorios
dc.contributor.author	Draggiotis, Petros
dc.contributor.author	Malamos, Ioannis
dc.contributor.author	Rodrigo García, Germán Vicente
dc.date.accessioned	2015-06-19T10:53:25Z
dc.date.available	2015-06-19T10:53:25Z
dc.date.issued	2014
dc.identifier.citation	Buchta, Sebastian Chachamis, Grigorios Draggiotis, Petros Malamos, Ioannis Rodrigo García, Germán Vicente 2014 On the singular behaviour of scattering amplitudes in quantum field theory Journal Of High Energy Physics 11 11 014-1 014-13
dc.identifier.uri	http://hdl.handle.net/10550/44598
dc.description.abstract	We analyse the singular behaviour of one-loop integrals and scattering amplitudes in the framework of the loop-tree duality approach. We show that there is a partial cancellation of singularities at the loop integrand level among the different components of the corresponding dual representation that can be interpreted in terms of causality. The remaining threshold and infrared singularities are restricted to a finite region of the loop momentum space, which is of the size of the external momenta and can be mapped to the phase-space of real corrections to cancel the soft and collinear divergences.
dc.language.iso	eng
dc.relation.ispartof	Journal Of High Energy Physics, 2014, vol. 11, num. 11, p. 014-1-014-13
dc.subject	Física
dc.title	On the singular behaviour of scattering amplitudes in quantum field theory
dc.type	journal article	es_ES
dc.date.updated	2015-06-19T10:53:25Z
dc.identifier.doi	10.1007/JHEP11(2014)014
dc.identifier.idgrec	102176
dc.rights.accessRights	open access	es_ES