Abstract

We present results for the couplings of light vectormesons to vector and tensor currents and on the low moments of the light-cone distribution amplitudes of the pion and kaon. The calculations are performed on the RBC and UKQCD collaborations’ ensembles generated with the Iwasaki gauge action and with 2+1 flavours of domain wall fermions. The (preliminary) results for the ratios of the couplings of the vector meson to the vector and tensor currents ( fV and f T V respectively) in the MS scheme at 2GeV are: f T r / fr = 0.681(20); f T K?/ fK? = 0.712(11) and f T f / ff = 0.751(9). For the first moment of the kaon’s distribution amplitude we find (in the same scheme and at the same scale) hx iK = 0.029(2) and for the second moment hx 2 ip = 0.28(3) and hx 2 iK = 0.27(2) .

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