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Low-energy couplings of QCD from topological zero-mode wave functions

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Low-energy couplings of QCD from topological zero-mode wave functions

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dc.contributor.author	Giusti, L.
dc.contributor.author	Hernández Gamazo, Pilar
dc.contributor.author	Laine, Mikko
dc.contributor.author	Weisz, P.
dc.contributor.author	Wittig, Hartmut
dc.date.accessioned	2015-04-24T10:22:21Z
dc.date.available	2015-04-24T10:22:21Z
dc.date.issued	2004
dc.identifier.citation	Giusti, L. Hernández Gamazo, Pilar Laine, Mikko Weisz, P. Wittig, Hartmut 2004 Low-energy couplings of QCD from topological zero-mode wave functions Journal of High Energy Physics 2004 01 003-1 003-29
dc.identifier.uri	http://hdl.handle.net/10550/43365
dc.description.abstract	By matching 1/m^2 divergences in finite-volume two-point correlation functions of the scalar or pseudoscalar densities with those obtained in chiral perturbation theory, we derive a relation between the Dirac operator zero-mode eigenfunctions at fixed non-trivial topology and the low-energy constants of QCD. We investigate the feasibility of using this relation to extract the pion decay constant, by computing the zero-mode correlation functions on the lattice in the quenched approximation and comparing them with the corresponding expressions in quenched chiral perturbation theory.
dc.language.iso	eng
dc.relation.ispartof	Journal of High Energy Physics, 2004, vol. 2004, num. 01, p. 003-1-003-29
dc.subject	Física
dc.title	Low-energy couplings of QCD from topological zero-mode wave functions
dc.type	journal article	es_ES
dc.date.updated	2015-04-24T10:22:21Z
dc.identifier.doi	10.1088/1126-6708/2004/01/003
dc.identifier.idgrec	017928
dc.rights.accessRights	open access	es_ES