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Status of the MILC light pseudoscalar meson project

Presenter: Claude Bernard — Washington University

C. Bernard, C. DeTar, Steven Gottlieb, U.M. Heller, J.E. Hetrick, L. Levkova, J. Osborn, D. Renner, R. Sugar, D. Toussaint

We discuss the current status of our calculation of the physics of π and K mesons using three dynamical flavors of improved staggered quarks. This year, we have a new ensemble with a lattice spacing of 0.06 fm and a light sea mass of 0.2 ms, as well as significant increases in statistics at several coarser lattice spacings and/or heavier sea masses. Results for decay constants, quark masses, low energy constants, condensates, and Vus are presented.