Chiral symmetry breaking with lattice propagators
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Chiral symmetry breaking with lattice propagators

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Chiral symmetry breaking with lattice propagators

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dc.contributor.author Aguilar, Arlene Cristina
dc.contributor.author Papavassiliou, Joannis
dc.date.accessioned 2015-04-23T07:41:18Z
dc.date.available 2015-04-23T07:41:18Z
dc.date.issued 2011
dc.identifier.uri http://hdl.handle.net/10550/43293
dc.description.abstract We study chiral symmetry breaking using the standard gap equation, supplemented with the infrared-finite gluon propagator and ghost dressing function obtained from large-volume lattice simulations. One of the most important ingredients of this analysis is the non-abelian quark-gluon vertex, which controls the way the ghost sector enters into the gap equation. Specifically, this vertex introduces a numerically crucial dependence on the ghost dressing function and the quark-ghost scattering amplitude. This latter quantity satisfies its own, previously unexplored, dynamical equation, which may be decomposed into individual integral equations for its various form factors. In particular, the scalar form factor is obtained from an approximate version of the 'one-loop dressed' integral equation, and its numerical impact turns out to be rather considerable. The detailed numerical analysis of the resulting gap equation reveals that the constituent quark mass obtained is about 300 MeV, while fermions in the adjoint representation acquire a mass in the range of (750-962) MeV.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2011, vol. 83, num. 1, p. 014013
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Aguilar, Arlene Cristina Papavassiliou, Joannis 2011 Chiral symmetry breaking with lattice propagators Physical Review D 83 1 014013
dc.subject Física
dc.title Chiral symmetry breaking with lattice propagators
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-04-23T07:41:18Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.83.014013
dc.identifier.idgrec 070793

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