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[PAST EVENT] Physics Colloquium
April 10, 2015
4pm - 5pm
Abstract:
Numerical lattice-QCD simulations enable the determination of hadronic matrix elements and parameters of the QCD Lagrangian with controlled uncertainties that are systematically improvable. In the past few years, lattice methodology has been validated by comparison with a broad array of measured quantities, including some that were not yet well measured in experiment when the first good lattice calculation became available. In the coming years, numerical lattice-QCD calculations will be needed throughout the experimental high-energy physics program. After briefly introducing numerical lattice QCD, I present recent results that demonstrate the reliability of modern lattice calculations. Next I discuss the role of lattice QCD in quark-flavor physics, for which lattice QCD is already a mature tool. I finish by discussing prospects for lattice calculations needed to interpret future precision measurements as Standard-Model tests and new-physics searches.
Numerical lattice-QCD simulations enable the determination of hadronic matrix elements and parameters of the QCD Lagrangian with controlled uncertainties that are systematically improvable. In the past few years, lattice methodology has been validated by comparison with a broad array of measured quantities, including some that were not yet well measured in experiment when the first good lattice calculation became available. In the coming years, numerical lattice-QCD calculations will be needed throughout the experimental high-energy physics program. After briefly introducing numerical lattice QCD, I present recent results that demonstrate the reliability of modern lattice calculations. Next I discuss the role of lattice QCD in quark-flavor physics, for which lattice QCD is already a mature tool. I finish by discussing prospects for lattice calculations needed to interpret future precision measurements as Standard-Model tests and new-physics searches.