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Infrared subtleties and chiral vertices at NLO: an implicit regularization analysis

dc.contributor.authorRosado, Ricardo J. C.
dc.contributor.authorCherchiglia, Adriano
dc.contributor.authorSampaio, Marcos
dc.contributor.authorHiller, Brigitte
dc.date.accessioned2023-10-31T09:01:48Z
dc.date.available2023-10-31T09:01:48Z
dc.date.issued2023-09-28
dc.identifier.citationRosado, R.J.C., Cherchiglia, A., Sampaio, M. et al. Infrared subtleties and chiral vertices at NLO: an implicit regularization analysis. Eur. Phys. J. C 83, 879 (2023). [https://doi.org/10.1140/epjc/s10052-023-12052-2]es_ES
dc.identifier.urihttps://hdl.handle.net/10481/85356
dc.descriptionWe acknowledge support from Fundação para a Ciência eTecnologia (FCT) through the projectsCERN/FIS-PAR/0040 /2019, CERN /FIS-COM /0035 /2019, UID /FIS /04564 /2020, and the grant FCT 2020.07172.BD. A.C. acknowledges support from National Council for Scientific and Technological Development - CNPq through projects 166523/2020-8 and 201013/2022-3 and M. Sampaio acknowledges support from CNPq through grant 302790/2020-9.es_ES
dc.description.abstractWe employ implicit regularization (IReg) in quark-antiquark decays of the Z, or of a scalar (CP-even or odd) boson at NLO, and compare with dimensional schemes to reveal subtleties involving infrared divergence cancellation and -matrix issues. Besides the absence of evanescent fields in IReg, such as -scalars required in certain schemes that operate partially in the physical dimension, we verify that our procedure preserves gauge invariance in the presence of the matrix without requiring symmetry preserving counterterms while the amplitude is infrared finite as stated by the KLN theorem.es_ES
dc.description.sponsorshipFundação para a Ciência eTecnologia (FCT) through the projects CERN/FIS-PAR/0040 /2019, CERN /FIS-COM /0035 /2019, UID /FIS /04564 /2020, and the grant FCT 2020.07172.BDes_ES
dc.description.sponsorshipNational Council for Scientific and Technological Development - CNPq through projects 166523/2020-8 and 201013/2022-3es_ES
dc.description.sponsorshipCNPq through grant 302790/2020-9es_ES
dc.language.isoenges_ES
dc.publisherSpringer Naturees_ES
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleInfrared subtleties and chiral vertices at NLO: an implicit regularization analysises_ES
dc.typejournal articlees_ES
dc.rights.accessRightsopen accesses_ES
dc.identifier.doi10.1140/epjc/s10052-023-12052-2
dc.type.hasVersionVoRes_ES


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