Hadron correlators and the structure of the quark propagator
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Hadron correlators and the structure of the quark propagator

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Hadron correlators and the structure of the quark propagator

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dc.contributor.author Ferrando Cogollos, Albert
dc.contributor.author Vento Torres, Vicente
dc.date.accessioned 2015-05-11T10:11:54Z
dc.date.available 2015-05-11T10:11:54Z
dc.date.issued 1994
dc.identifier.uri http://hdl.handle.net/10550/43634
dc.description.abstract The structure of the quark propagator of QCD in a confining background is not known. We make an Ansatz for it, as hinted by a particular mechanism for confinement, and analyze its implications in the meson and baryon correlators. We connect the various terms in the K\'allen-Lehmann representation of the quark propagator with appropriate combinations of hadron correlators, which may ultimately be calculated in lattice QCD. Furthermore, using the positivity of the path integral measure for vector like theories, we reanalyze some mass inequalities in our formalism. A curiosity of the analysis is that, the exotic components of the propagator (axial and tensor), produce terms in the hadron correlators which, if not vanishing in the gauge field integration, lead to violations of fundamental symmetries. The non observation of these violations implies restrictions in the space-time structure of the contributing gauge field configurations. In this way, lattice QCD can help us analyze the microscopic structure of the mechanisms for confinement.
dc.language.iso eng
dc.relation.ispartof Zeitschrift für Physik C-Particles and Fields, 1994, vol. 63, num. 3, p. 485-489
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Ferrando Cogollos, Albert Vento Torres, Vicente 1994 Hadron correlators and the structure of the quark propagator Zeitschrift für Physik C-Particles and Fields 63 3 485 489
dc.subject Física
dc.title Hadron correlators and the structure of the quark propagator
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-05-11T10:11:54Z
dc.identifier.doi http://dx.doi.org/10.1007/BF01580329
dc.identifier.idgrec 075400

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