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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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.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.rights.uri info:eu-repo/semantics/openAccess
dc.source 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.subject Física
dc.title Low-energy couplings of QCD from topological zero-mode wave functions
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-04-24T10:22:21Z
dc.identifier.doi http://dx.doi.org/10.1088/1126-6708/2004/01/003
dc.identifier.idgrec 017928

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