Gasser-Leutwyler coefficients: A progress report

Details Gasser-Leutwyler coefficients: A progress report Gasser-Leutwyler coefficients: A progress report

2002-09-19

arxiv.org/abs/hep-lat/0209141v1

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 2 figures, Lattice2002(spectrum)

Scientific paper

10.1016/S0920-5632(03)01515-9

Last year, we reported our first results on the determination of Gasser-Leutwyler coefficients using partially quenched lattice QCD with three flavors of dynamical staggered quarks. We give an update on our progress in determining two of these coefficients, including an exhaustive effort to estimate all sources of systematic error. At this conference, we have heard about algorithmic techniques to reduce staggered flavor symmetry breaking and a method to incorporate staggered flavor breaking into the partially quenched chiral Lagrangian. We comment on our plans to integrate these developments into our ongoing program.

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