# SU3 gauge invariant lattice QCD exploration of the dual superconductor picture in flux tube fusion, in the dual gluon mass, and in the dual Ginzburg-Landau parameters - High Energy Physics - Lattice

SU3 gauge invariant lattice QCD exploration of the dual superconductor picture in flux tube fusion, in the dual gluon mass, and in the dual Ginzburg-Landau parameters - High Energy Physics - Lattice - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: The colour fields, created by a static gluon-quark-antiquark system, arecomputed in quenched SU3 lattice QCD, in a $24^3\times 48$ lattice at$\beta=6.2$ and $a=0.0726185\,fm$. We compute the hybrid Wilson Loopincluding the cases when the gluon and the antiquark are superposed, i. e., thequark-antiquark case and when the quark and antiquark are superposed, i. e.,the gluon-gluon case. The Casimir scaling is investigated, in the two gluonglueball case the Casimir scaling is consistent with the formation of anadjoint string. Measuring the decay of the tail in the mid section of the fluxtube for the two gluon glueball and for the quark-antiquark meson, we determinethe penetration length and present a gauge invariant effective dual gluon massof $0.905\pm0.163\,\text{GeV}$. We also try to determine the coherence lengthcomparing our results with the dual Ginzburg-Landau approach. With thepenetration length and the possible coherence length we determine a putativeGinzburg-Landau dimensionless parameter, which is possibly consistent with atype II superconductor picture. These results are obtained at fixedquark-antiquark distance of 0.58 fm.

Autor: N. Cardoso, M. Cardoso, P. Bicudo

Fuente: https://arxiv.org/