Moments of pseudoscalar meson distribution amplitudes from the lattice

Simple item page
dc.creatorBraun, V. M.
dc.creatorGöckeler, M.
dc.creatorHorsley, R.
dc.creatorPerlt, H.
dc.creatorPleiter, D.
dc.creatorRakow, P. E. L.
dc.creatorSchierholz, G.
dc.creatorSchiller, A.
dc.creatorSchroers, W.
dc.creatorStüben, H.
dc.creatorZanotti, J. M.
dc.date2006-06-18
dc.date2006-10-02
dc.date.accessioned2026-07-07T11:43:23Z
dc.date.available2026-07-07T11:43:23Z
dc.descriptionBased on lattice simulations with two flavours of dynamical, O(a)-improved Wilson fermions we present results for the first two moments of the distribution amplitudes of pseudoscalar mesons at several values of the valence quark masses. By extrapolating our results to the physical masses of up/down and strange quarks, we find the first two moments of the K^+ distribution amplitude and the second moment of the pi^+ distribution amplitude. We use nonperturbatively determined renormalisation coefficients to obtain results in the MSbar scheme. At a scale of 4 GeV^2 we find a_2^pi=0.201(114) for the second Gegenbauer moment of the pion's distribution amplitude, while for the kaon, a_1^K=0.0453(9)(29) and a_2^K=0.175(18)(47).
dc.description26 pages, 16 figures, 10 tables. Minor changes, references added, to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-lat/0606012
dc.identifierhttp://arxiv.org/abs/hep-lat/0606012
dc.identifierPhys.Rev.D74:074501,2006
dc.identifierdoi:10.1103/PhysRevD.74.074501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201222
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMoments of pseudoscalar meson distribution amplitudes from the lattice
dc.typetext

Files

Collections

arXiv