Speaker
Claude Bernard
(Washington University)
Description
We present results from the MILC collaboration's analysis of the light pseudoscalar
meson sector. All of our asqtad staggered ensembles with 2+1 dynamical quark flavors
have now been completed and analyzed, including lattice spacings down to 0.045 fm, and
light quark masses down to 0.05 times the strange mass. We compare the results
from SU(3) and SU(2) chiral perturbation theory; both sets of fits include the
continuum NNLO chiral logarithms. We obtain results for decay constants, quark
masses, NLO and NNLO low energy constants, and the condensates in the two- and
three-flavor chiral limits.
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Primary author
Claude Bernard
(Washington University)
Co-authors
Dr
Alexei Bazavov
(U. of Arizona)
Prof.
Carleton DeTar
(U. of Utah)
Prof.
Doug Toussaint
(U. of Arizona)
Prof.
James Hetrick
(U. of the Pacific)
Dr
James Osborn
(Argonne Natl. Lab.)
Dr
John Laiho
(U. of Glasgow)
Dr
Ludmila Levkova
(U. of Utah)
Dr
Mehmet Oktay
(U. of Utah)
Prof.
Robert Sugar
(U.C. Santa Barbara)
Dr
Ruth Van de Water
(Brookhaven Natl. Lab.)
Prof.
Steven Gottlieb
(Indiana U.)
Dr
Urs Heller
(American Physical Society)
Dr
Walter Freeman
(U. of Arizona)
Dr
Xining Du
(Washington U.)
