A Lattice Computation of the First Moment of the Kaon's Distribution Amplitude

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dc.creatorBoyle, P. A.
dc.creatorDonnellan, M. A.
dc.creatorFlynn, J. M.
dc.creatorJuttner, A.
dc.creatorNoaki, J.
dc.creatorSachrajda, C. T.
dc.creatorTweedie, R. J.
dc.date2006-07-14
dc.date2006-08-23
dc.date.accessioned2026-07-07T10:24:44Z
dc.date.available2026-07-07T10:24:44Z
dc.descriptionWe present a lattice computation of the first moment of the kaon's leading-twist distribution amplitude. The results were computed using ensembles with 2+1 dynamical flavours with the domain wall fermion action and Iwasaki gauge action from the RBC and UKQCD joint dataset. The first moment is non-zero because of SU(3)-breaking effects, and we find that we are able to measure these effects very clearly. We observe the expected chiral behaviour and finally obtain <ξ>(2GeV) = 3/5*a_K^1(2GeV) = 0.032(3), which agrees very well with results obtained using sum-rules, but with a significantly smaller error.
dc.description14 pages, 4 figures, minor changes
dc.identifierhttps://arxiv.org/abs/hep-lat/0607018
dc.identifierhttp://arxiv.org/abs/hep-lat/0607018
dc.identifierPhys.Lett.B641:67-74,2006
dc.identifierdoi:10.1016/j.physletb.2006.07.033
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176296
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA Lattice Computation of the First Moment of the Kaon's Distribution Amplitude
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