Light meson masses and non-perturbative renormalisation in 2+1 flavour domain wall QCD

C. Allton , D.J. Antonio , P.A. Boyle , C. Dawson , A. J\"uttner , R.D. Kenway , S. Li , M. Lin

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C.M. Maynard J. Noaki B.J. Pendleton R.J. Tweedie A. Yamaguchi J.M. Zanotti RBC Collaboration UKQCD Collaboration

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classification ✦ hep-lat

keywords massesdomainensemblesflavourgeneratedlightmassmeson

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We present results for the light meson masses, the bare strange quark mass and preliminary non-perturbative renormalisation of B_K in 2+1 flavour domain wall QCD. The ensembles used were generated with the Iwasaki gauge action and have a volume of 16^3 x 32 with a fifth dimension size of 16 and an inverse lattice spacing of 1.6 GeV. These ensembles have u and d masses as low as one quarter of the strange quark mass. All data were generated jointly by the UKQCD and RBC collaborations on QCDOC machines.

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Light meson masses and non-perturbative renormalisation in 2+1 flavour domain wall QCD

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