Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10316/105351
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Li, Shirley Weishi | - |
dc.contributor.author | Lowdon, Peter | - |
dc.contributor.author | Costa, Orlando Oliveira | - |
dc.contributor.author | Silva, Paulo J. | - |
dc.date.accessioned | 2023-02-20T09:30:32Z | - |
dc.date.available | 2023-02-20T09:30:32Z | - |
dc.date.issued | 2021-09-22 | - |
dc.identifier.issn | 03702693 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/105351 | - |
dc.description | 14 pages, 1 figure; v2: additional comments and references added, matches published version | pt |
dc.description.abstract | In BRST-quantised Yang-Mills theory the existence of BRST symmetry imposes significant constraints on the analytic structure of the continuum theory. In particular, the presence of this symmetry in the non-perturbative regime implies that any on-shell state with vanishing norm must have an associated partner state with identical mass, but negative inner product. In this work we demonstrate that for quantum chromodynamics (QCD) this constraint gives rise to an interconnection between the ghost and gluon spectra, and in doing so provides a non-trivial test of whether BRST symmetry is realised non-perturbatively. By analysing infrared lattice data for the minimal Landau gauge ghost propagator in pure $\mathrm{SU}(3)$ Yang-Mills theory, and comparing this with previous results for the gluon propagator, we show that this interconnection is violated, and hence conclude that continuum and current lattice formulations of Yang-Mills theory in Landau gauge represent two distinct realisations of the theory. | pt |
dc.description.sponsorship | The authors would like to thank Axel Maas and Jan Pawlowski for useful discussions and input. S.W.L is supported by the Fermi Research Alliance, LLC under Contract No.DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics, and P.L. by the Deutsche Forschungsgemein-schaft (DFG, German Research Foundation) through the Collabora-tive Research Center CRC-TR 211 “Strong-interaction matter under extreme conditions” Project No.315477589-TRR 211. P.J.S. ac-knowledges support from FCT under the contract CEECIND/00488/2017, and both O.O. and P.J.S. acknowledge support by na-tional funds from FCT – Fundac¸ão para a Ciência e a Tecnologia, I.P., within the projects UIDB/04564/2020 and UIDP/04564/2020, and also from CERN/FIS-COM/0029/2017. This work was granted access to the HPC resources of the PDC Center for High Perfor-mance Computing at the KTH Royal Institute of Technology, Swe-den, made available within the Distributed European Computing Initiative by the PRACE-2IP, receiving funding from the European Community’s Seventh Framework Programme (FP7/2007-2013) un-der grand agreement No.RI-283493. The use of Lindgren has been provided under DECI-9 project COIMBRALATT. We acknowledge that the results of this research have been achieved using the PRACE-3IP project (FP7 RI312763) resource Sisu based in Finland at CSC. The use of Sisu has been provided under DECI-12 project COIMBRALATT2. We also acknowledge the Laboratory for Advanced Computing at the University of Coimbra (http://www.uc .pt /lca) for providing access to the HPC resource Navigator. | pt |
dc.language.iso | eng | pt |
dc.publisher | Elsevier | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | High Energy Physics - Theory | pt |
dc.subject | High Energy Physics - Lattice | pt |
dc.subject | High Energy Physics - Phenomenology | pt |
dc.title | Non-perturbative BRST symmetry and the spectral structure of the ghost propagator | pt |
dc.type | article | - |
degois.publication.firstPage | 136753 | pt |
degois.publication.title | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.1016/j.physletb.2021.136753 | pt |
degois.publication.volume | 823 | pt |
dc.date.embargo | 2021-09-22 | * |
uc.date.periodoEmbargo | 0 | pt |
item.fulltext | Com Texto completo | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
crisitem.author.researchunit | CFisUC – Center for Physics of the University of Coimbra | - |
crisitem.author.orcid | 0000-0002-3658-2319 | - |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
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Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S0370269321006936-main.pdf | 353.24 kB | Adobe PDF | Ver/Abrir |
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