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Indirect determination of the Kugo-Ojima function from lattice data

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Indirect determination of the Kugo-Ojima function from lattice data

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dc.contributor.author Aguilar, Arlene Cristina
dc.contributor.author Binosi, Daniele
dc.contributor.author Papavassiliou, Joannis
dc.date.accessioned 2015-04-23T07:17:35Z
dc.date.available 2015-04-23T07:17:35Z
dc.date.issued 2009
dc.identifier.citation Aguilar, Arlene Cristina Binosi, Daniele Papavassiliou, Joannis 2009 Indirect determination of the Kugo-Ojima function from lattice data Journal of High Energy Physics 09 11 066
dc.identifier.uri http://hdl.handle.net/10550/43284
dc.description.abstract We study the structure and non-perturbative properties of a special Green's function, u(q), whose infrared behavior has traditionally served as the standard criterion for the realization of the Kugo-Ojima confinement mechanism. It turns out that, in the Landau gauge, u(q) can be determined from a dynamical equation, whose main ingredients are the gluon propagator and the ghost dressing function, integrated over all physical momenta. Using as input for these two (infrared finite) quantities recent lattice data, we obtain an indirect determination of u(q). The results of this mixed procedure are in excellent agreement with those found previously on the lattice, through a direct simulation of this function. Most importantly, in the deep infrared the function deviates considerably from the value associated with the realization of the aforementioned confinement scenario. In addition, the dependence of u(q), and especially of its value at the origin, on the renormalization point is clearly established. Some of the possible implications of these results are briefly discussed.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2009, vol. 09, num. 11, p. 066
dc.subject Física
dc.title Indirect determination of the Kugo-Ojima function from lattice data
dc.type journal article es_ES
dc.date.updated 2015-04-23T07:17:36Z
dc.identifier.doi 10.1088/1126-6708/2009/11/066
dc.identifier.idgrec 056900
dc.rights.accessRights open access es_ES

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