Weak low-energy couplings from topological zero-mode wavefunctions

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dc.creatorHernandez, P.
dc.creatorLaine, M.
dc.creatorPena, C.
dc.creatorTorro, E.
dc.creatorWennekers, J.
dc.creatorWittig, H.
dc.date2007-10-30
dc.date.accessioned2026-07-07T11:53:52Z
dc.date.available2026-07-07T11:53:52Z
dc.descriptionWe discuss a new method to determine the low-energy couplings of the $ΔS=1$ weak Hamiltonian in the $ε$-regime. It relies on a matching of the topological poles in $1/m^2$ of three-point functions of two pseudoscalar densities and a four-fermion operator computed in lattice QCD, to the same observables in the Chiral Effective Theory. We present the results of a NLO computation in chiral perturbation theory of these correlation functions together with some preliminary numerical results.
dc.description7 pages. Contribution to Lattice 2007
dc.identifierhttps://arxiv.org/abs/0710.5647
dc.identifierhttp://arxiv.org/abs/0710.5647
dc.identifierPoSLAT2007:356,2007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204699
dc.subjectHigh Energy Physics - Lattice
dc.titleWeak low-energy couplings from topological zero-mode wavefunctions
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